Is a concrete washout of dangerous waste

Basic glasses 2014_2015

by NSG Group

Basic glasses 2014/2015

Base glasses 2014/2015 Less

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Basic glasses 2014/2015

General Terms and Conditions of Sale and Delivery Foreword / Table of Contents Thermal Insulation Glasses Basic Glass / Low-E Glass Sun Protection Glasses / Facade Panels Self-cleaning Glass Laminated Safety Glass Sound Insulation Laminated Safety Glasses Special Glasses Fire Protection Glass Profiled Glass with System Delivery Program / Notes

2 Pilkington Deutschland AG Published by Pilkington Deutschland AG, a company of the NSG Group, Sales Marketing Basic Glass, Application Technology Editorial deadline August 2013 - Subject to change - The content of this book has been created to the best of our knowledge. Legal claims cannot be derived from the information on the technical data and product programs. Pilkington Deutschland AG reserves the right to make any changes to technical information, production improvements and the delivery offer. In case of doubt, please contact us. Unless otherwise stated, all calculated data and all measured values ​​are based on measurements on standard structures in accordance with the relevant standards as well as internal and external guidelines that were valid at the time this manual went to press. Light and energy-related data correspond to EN standards. Ug values ​​correspond to DIN EN 673. All values ​​apply taking into account the tolerances specified in the standards. A guaranteed property for the individual finished product cannot be derived from this. The statutory regulations must be observed for all applications. The specified dimensions show the manufacturing possibilities. Restrictions can e.g. B. result from: • any further processing • combinations of functions • applications (e.g. stresses from wind, snow, climate, traffic loads) • standards, building codes and laws • the respective production facilities of the further processors are suggestions for the content, the structure and the correction of printing errors always welcome us.

3Base glasses 2014 Copyright: © Pilkington Deutschland AG 2013 The book including all of its parts is protected by copyright. Any use outside the narrow limits of copyright law without the consent of Pilkington Deutschland AG is inadmissible and punishable. This applies in particular to copying, translations, microfilming and saving and processing in electronic systems.

4 Pilkington Deutschland AG Foreword to the 2014 basic glass manual This basic glass manual from Pilkington Deutschland AG shows you, as usual, all of our basic glasses, supplemented by a wealth of information about their properties, the applications and the insulating glasses based on them. There have been some changes since the last issue: • The NSG Group is now offering its customers more flexibility through shorter delivery times with the new opaque, laminated facade panels. The Pilkington Facade Panels Laminated are available in the types L200, L120 and L140 and are color-matched to the various types of sun protection glass in the Pilkington Suncool ™ product range in order to ensure a uniform appearance of the glass facade. • The proven thermal insulation glass Pilkington K Glass ™ is now available as a technological advancement under the product name Pilkington K Glass ™ N. An optimized layer structure enables the use of Pilkington K Glass ™ N in position # 4 in the insulating glass unit, which improves the thermal insulation performance of the ISO unit becomes. ISO units with Pilkington K Glass ™ N in combination with an outer pane made of a coated sun protection or thermal insulation glass, which in the standard structure has a Ug value of 1.0 W / m²K, achieve a Ug value of 0.9 W / m²K. • The new solar control laminated glass Pilkington Suncool Optilam ™ 65/59 was specially developed for use in double facades and improves the energy-related values ​​of a building. With Pilkington Suncool Optilam ™ 65/59, the coated side of the glass is laminated to form a film - a technical innovation that enables transparent sun protection in the form of coated, high-performance sun protection glass in secondary facades. • Pilkington Suncool ™ 60/30 becomes Pilkington Suncool ™ 60/31: With the new product, external reflection has been reduced from 19% to 11%. • The thermal insulation glass Pilkington Optitherm ™ S3 and the sun protection glass Pilkington Suncool ™ 70/40, 70/35, 66/33 and 50/25 are currently available as temperable "Pro T" types. You can find more information about our products at www.pilkington.de. Tobias Breil Christoph Troska Commercial Director Europe Mainland Head of TAS Architectural Glass Europe

5 base glasses 2014

Table of contents 6 Pilkington Deutschland AG Copyright / Foreword 2-5 1 General terms and conditions of sale and delivery 12 1.1 General 14 1.2 Delivery time and delivery obligation 14 1.3 Prices 15 1.4 Shipping, transfer of risk, transport and packaging 16 1.5 Reservation of title 18 1.6 Buyer's rights in the event of material defects 19 1.7 Commercial Property rights and copyrights; Defects of title 22 1.8 Other claims for damages 23 1.9 Terms of payment 24 1.10 Dimensions and definition of the glass thickness 24 1.11 Place of performance, place of jurisdiction, other agreements 25 1.12 Contractual supplements 25 2 Thermal insulation glasses 26 Basic glass 2.1 Pilkington Optifloat ™ clear and colored 32 2.1.1 Product description 32 2.1.2 Delivery program 33 2.1 .3 Technical data 33 2.1.4 Handling and processing guidelines 40 Low-E glass 2.2 Pilkington Optitherm ™ S1 41 2.2.1 Product description 41 2.2.2 Delivery program 41 2.2.3 Technical data 43 2.2.4 Handling and processing guidelines 45 2.3 Pilkington Optitherm ™ S3 46 2.3.1 Product description 46 2.3.2 Delivery program 46 2.3.3 Technical data 48 2.3.4 Handling and processing guidelines 50 2.4 Pilkington Optitherm ™ GS 51 2.4.1 Product description 51 2.4.2 Delivery program 51 2.4.3 Technical data 53 2.4.4 Handling and processing guidelines 55

7Base glasses 2014 2.5 Pilkington Optitherm ™ S3 Pro T 59 2.5.1 Product description 59 2.5.2 Delivery program 59 2.5.3 Technical data 61 2.5.4 Handling and processing guidelines 64 2.6 Pilkington K Glass ™ N 70 2.6.1 Product description 70 2.6.2 Delivery program 71 2.6.3 Technical data 73 2.6.4 Handling and processing guidelines 77 2.7 Pilkington K Glass ™ N OW 80 2.7.1 Product description 80 2.7.2 Delivery program 81 2.7.3 Technical data 83 2.7.4 Handling and processing guidelines 85 2.8 Pilkington Spacia ™ 86 3 Sun protection glasses / facade panels 88 3.1 Pilkington Suncool ™ 93 3.1.1 Product description 93 3.1.2 Delivery program 94 3.1.3 Technical data 97 3.1.4 Handling and processing guidelines 110 3.2 Pilkington Suncool ™ Pro T 114 3.2.1 Product description 114 3.2.2 Delivery program 114 3.2 .3 Technical data 116 3.2.4 Handling and processing guidelines 122 3.3 Pilkington Suncool ™ OW 129 3.3.1 Product description 129 3.3.2 Delivery program 129 3.3.3 Technical e data 132 3.3.4 Handling and processing guidelines 145 3.4 Pilkington Suncool Optilam ™ 65/59 146 3.4.1 Product description 146 3.4.2 Delivery program 146 3.4.3 Technical data 146 3.4.4 Handling and processing guidelines 149

Contents 8 Pilkington Deutschland AG 3.5 Pilkington Façade Panels Coated 151 3.5.1 Product Description 151 3.5.2 Delivery Program 153 3.5.3 Technical Data 154 3.5.4 Handling and Processing Guidelines 156 3.6 Pilkington Façade Panels Pro T 159 3.6.1 Product Description 159 3.6.2 Delivery Program 161 3.6 .3 Technical data 161 3.6.4 Handling and processing guidelines 162 3.6.5 Glazing guidelines 167 3.7 Pilkington facade panels, laminated 170 3.7.1 Product description 170 3.7.2 Delivery program 172 3.7.3 Technical data 172 3.7.4 Handling and processing guidelines 173 3.8 Pilkington Eclipse Advantage ™ 174 3.8.1 Product description 174 3.8.2 Delivery program 174 3.8.3 Technical data 176 3.8.4 Handling and processing guidelines 186 4 Self-cleaning glass 194 Basic glass 4.1 Pilkington Activ ™ 198 4.1.1 Product description 198 4.1.2 Delivery program 198 4.1.3 Technical data 200 4.1.4 Handling and processing guidelines 204 4.2 Pilkington Activ ™ Blue 210 4.2.1 Product description 210 4.2.2 Delivery program 210 4.2.3 Technical data 210 Glass coated on both sides 4.3 Pilkington Activ Suncool ™ 213 4.3.1 Product description 213 4.3.2 Delivery program 213 4.3.3 Technical data 213

9Base glasses 2014 5 Laminated safety glass 228 5.1 Pilkington Optilam ™ 232 5.1.1 Product description 232 5.1.2 Delivery program 234 5.1.3 Technical data 234 5.1.4 Handling and processing guidelines 235 5.2 Pilkington Optilam ™ product combinations 236 5.2.1 Product descriptions 236 6 Soundproof composite safety glasses 238 6.1 Pilkington Optiphon ™ 242 6.1.1 Product description 242 6.1.2 Delivery program 243 6.1.3 Technical data 245 6.1.4 Handling and processing guidelines 249 7 Special glasses 250 7.1 Pilkington Microfloat ™ 252 7.1.1 Product description 252 7.1.2 Delivery program 252 7.1.3 Technical data 253 7.1.4 Handling and processing guidelines 253 7.2 Pilkington OptiView ™ Protect 254 7.2.1 Product description 254 7.2.2 Delivery program 255 7.2.3 Technical data 255 7.2.4 Handling and processing guidelines 257 7.3 Pilkington OptiView ™ Therm 258 7.3.1 Product description 258 7.3. 2 Delivery program 259 7.3.3 Technical data 259 7.3.4 Handling and processing guideline 261 7.4 Pilkington Optiwhite ™ 265 7.4.1 Product description 266 7.4.2 Delivery program 266 7.4.3 Technical data 266 7.4.4 Handling and processing guidelines 269

Contents 10 Pilkington Deutschland AG 7.5 Pilkington RadarStop ™ Radar Reflection Attenuation 270 7.5.1 Product Description 270 7.5.2 Delivery Program 271 7.5.3 Technical Data 271 7.5.4 Handling and Processing Guidelines 271 8 Fire Protection Glass 274 8.1 Basic Information on Fire Protection with Glass 276 8.2 Pilkington Pyrostop® 282 8.3 Pilkington Pyrodur® 284 8.4 Pilkington Pyroclear® 286 8.5 Contact person 288 9 Profiled glass with system 292 9.1 Pilkington Profilit ™ 294 10 Product range / information 304 10.1 Product-specific information 306 10.1.1 Product range 306 10.1.2 Heat transfer coefficients, Ug values ​​314 10.1.3 Physical data 309 10.1 .4 Tolerances 320 10.1.5 Materials for further processing 321 10.2 CE marking 323 10.3 General information 325 10.3.1 Assessment of the visual quality 325 10.3.2 Color impression 328 10.3.3 Cleaning 329 10.3.4 Breaking resistance of flat glass 332 10.3.5 Glossary, definitions 334 10.4 Pilkington Brands and Addresses 339 10.4.1 Brands of the Pilkington Group 339 10.4.2 Addresses of Pilkington Deutschland AG 339

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12 Pilkington Deutschland AG General Terms and Conditions of Sale and Delivery 1

13Base glasses 2014 1 1 General conditions of sale and delivery 1.1 General 1.2 Delivery time and delivery obligation 1.3 Prices 1.4 Shipping, transfer of risk, transport and packaging 1.5 Reservation of title 1.6 Purchaser's rights in the event of material defects 1.7 Industrial property rights and copyrights; Defects of title 1.8 Other claims for damages 1.9 Terms of payment 1.10 Dimensions and definition of the glass thickness 1.11 Place of performance, place of jurisdiction, other agreements 1.12 Supplements to the contract Status: December 2013 1

14 Pilkington Deutschland AG General Terms and Conditions of Sale and Delivery 1 1. General 1.1 All offers, deliveries and services from Pilkington Deutschland AG are based on these General Terms and Conditions of Sale and Delivery, even if reference is no longer expressly made in further business relationships or we are aware of the contrary or provide the customer with deliveries or services that deviate from these general terms and conditions of sale and delivery without reservation. Any existing terms and conditions of the customer are hereby expressly contradicted. Such conditions only become binding if they have been expressly recognized by us in writing. 1.2 In addition to these general terms and conditions of sale and delivery, the special conditions for the fire protection glass Pilkington Pyrostop®, Pilkington Pyrodur® and Pilkington Pyroclear® or the technical information for the individual products in the Pilkington basic glass manual and in the Pilkington fire protection glass manual in the latest version as well as the technical ones apply Notes in the price sheets. The processing instructions, in particular the Glazing Guideline for Fire Protection Insulating Glass, which can be requested free of charge from Pilkington, must also be complied with. 1.3 Pilkington's offers are always non-binding. Placed orders only become binding for Pilkington after a written, telex or electronic order confirmation from Pilkington. The same applies to changes or ancillary agreements as well as to performance data. The content of the order confirmation is decisive for the business transaction. 2 Delivery time and delivery obligation 2.1 Pilkington is entitled to partial performance. 2.2 Insofar as delivery dates have been specified, these are always non-binding and are only approximate, unless a firm deal has been expressly agreed in writing. If bindingly agreed delivery dates are exceeded due to circumstances for which Pilkington is responsible, the customer can withdraw from the contract by means of a written declaration after the unsuccessful expiry of a reasonable grace period set by him.

15Basisglass 2014 1 1 2.3 Labor disputes and all cases of force majeure which impair the ability to deliver, be it at Pilkington, with suppliers or in the transport sector, in particular unforeseeable operational disruptions, unforeseeable technical difficulties, disruptions in the energy and raw material supply, traffic disruptions, sovereign measures or war Pilkington for the duration of the effects plus a reasonable lead time from the delivery obligation. In the event of subsequent impossibility, full exemption applies. If the aforementioned hindrances last for more than three months, the contracting parties are entitled to withdraw from the contract with regard to the part of the contract that has not yet been fulfilled, excluding any claims for damages. 2.4 Without prejudice to other rights, Pilkington can withdraw from the contract if, after the conclusion of the contract, justified doubts about the creditworthiness of the customer arise, in particular if the customer fails to pay a due claim after setting a deadline with threat of rejection, applies for insolvency proceedings against his assets or refuses such proceedings for lack of assets or he stops his payments. 2.5 The customer is in default of acceptance and is liable to pay damages to Pilkington if he does not accept the delivery or does not accept it in time or if he fails to cooperate in any other way. If the delivery on call has been agreed, the customer is obliged to call off the delivery within a reasonable time, at the latest ten (10) working days after notification of the call readiness. If the call is not made, not in time or not completely, Pilkington is entitled to store the goods at the customer's risk and expense. If the customer does not call up the goods within a reasonable grace period set by Pilkington - with reference to the legal consequences - they shall be deemed called and delivered after the period has expired. The customer is then obliged to pay immediately. 3 Prices The following regulations on prices are accepted at the latest upon receipt of the delivery by the customer. The day on which Pilkington indicates that the goods are ready for collection or hands them over to the carrier is deemed to be the day of delivery.

16 Pilkington Deutschland AG General Terms and Conditions of Sale and Delivery 1 3.1 The prices stated in the order confirmation plus the applicable statutory sales tax apply. The prices stated therein apply exclusively to the day of the order confirmation and are not binding. The delivery takes place at the prices that are valid on the day of delivery according to the current price sheets. 3.2 If the delivery date envisaged in the order confirmation is exceeded for reasons for which the customer is responsible, the price can be adjusted accordingly if the cost factors change. 3.3 Basically, the prices per m², which are listed in the given price sheets, are carriage paid from twenty (20) tons per delivery, uninsured, possibly packed. Additional costs for special delivery requests (e.g. crane trucks) are borne by the customer. 3.4 In addition to the product prices, Pilkington charges an energy surcharge. Delivery takes place at the energy surcharge applicable on the day of delivery in accordance with the energy surcharge rule.The amount of the energy surcharge is determined on the basis of the IPE Brent price and the published tariffs. 3.5 Due to the law on the collection of route-related fees for the use of federal motorways with heavy commercial vehicles (Motorway Toll Act for Heavy Commercial Vehicles) as well as the ordinance on the collection, evidence of proper payment and creation of the toll (truck toll ordinance) and the ordinance setting it the amount of the motorway toll for heavy commercial vehicles (Mauthöhenverordnung), Pilkington reserves the right to charge a flat-rate toll in addition to the product prices, which would be specified in the order confirmation at the latest. 4 Dispatch, transfer of risk, transport and packaging 4.1 Unless otherwise agreed in writing, deliveries are made ex works. The risk of accidental loss and accidental deterioration of the goods is transferred to the customer after they have been made available for collection with the notification that the goods have been made available.

17Base glasses 2014 1 1 4.2 The goods are dispatched at the customer's expense if the actual load weight of the delivery is less than twenty (20) tons. When the goods are handed over to the transporter - regardless of who has been commissioned - the risk of accidental loss and accidental deterioration of the goods is always transferred to the customer. 4.3 In order to ensure smooth dispatch from the supplying works, all deliveries are made by Pilkington's contracted freight forwarders. If the customer or the recipient of the goods has agreed to collect the goods themselves, freight reimbursements are possible in individual cases after consultation. 4.4 General cargo shipments are generally not possible. Truck freight is charged for container loading. The deviating regulations in the special conditions for the fire protection glass Pilkington Pyrostop®, Pilkington Pyrodur® and Pilkington Pyroclear® must be observed. 4.5 Regarding the packaging of the goods and the obligation of the customer or the recipient of the goods to treat and return loan racks and other reusable packaging, reference is made to the statutory provisions, supplemented by the respective special conditions for the individual products. It is the sole responsibility and obligation of the customer to provide suitable unloading devices and to provide the necessary labor for unloading. 4.6 If goods are delivered due to transport and / or production-related requirements in transport and / or sales packaging within the meaning of the Ordinance on the Avoidance and Recycling of Packaging Waste (Packaging Ordinance) (e.g. wooden boxes, honeycomb cardboard), the customer is obliged to inform the manufacturer and / or Fulfill the obligations incumbent on the distributor under the Packaging Ordinance himself or through a third party. Pilkington will not reimburse or contribute to the costs. However, the customer is free to return any packaging supplied by Pilkington to the delivery plant at his own expense. The return can only take place during the business hours of the respective supplying plant. The returned packaging must be clean, free of foreign matter and sorted according to different types of packaging. Otherwise, Pilkington is entitled

18 Pilkington Deutschland AG General Terms and Conditions of Sale and Delivery 1 to demand from the customer the additional costs arising from disposal or recycling. 5 Retention of title 5.1 Pilkington reserves title to the delivered goods until all claims from the business relationship have been settled. This also applies if individual or all amounts have been included in a current invoice and the balance has been drawn and recognized. The receipt of the equivalent value at Pilkington counts as payment. 5.2 If the customer acts in breach of contract - in particular in the event of default in payment - Pilkington is entitled to take back the goods, to mark them for this purpose and to enter the premises of the recipient of the goods or the customer. Taking back the goods delivered by Pilkington does not constitute a withdrawal from the contract, unless Pilkington expressly declares this in writing. 5.3 The customer undertakes any processing of the goods for Pilkington without any obligations arising for Pilkington as a result. If the goods are processed or combined with third-party items that do not belong to Pilkington, Pilkington shall acquire joint ownership of the new item in the ratio of the invoice value of the reserved goods to the other items at the time of processing or combination. If the customer acquires sole ownership of the connected item because the customer's item is to be seen as the main item when combined (Section 947, Paragraph 2 BGB), the contracting parties agree that the customer will co-own Pilkington in the ratio described above the new thing admits. The new item, which the customer keeps for Pilkington free of charge, is reserved goods within the meaning of this provision. 5.4 If the reserved goods are sold or installed, d. H. used to fulfill a work or work delivery contract, the customer hereby assigns the resulting purchase price or wages to the amount of the invoice value of the goods delivered by Pilkington to Pilkington, regardless of whether the goods subject to retention of title have been processed without or after processing, whether they are alone or together with other people's items or whether they are given to one or more customers. In addition to claims related to the reserved goods - in particular insurance claims - are also assigned to the same extent. Pilkington accepts this assignment.

19Base glasses 2014 1 1 5.5 The reserved goods may only be passed on in the ordinary course of business. Other dispositions - in particular pledging or security transfers - are not permitted. A resale must take place under retention of title. 5.6 In the event of seizure, confiscation or other dispositions or interventions by third parties with regard to the goods subject to retention of title, the customer must expressly point out that the goods are subject to retention of title and notify Pilkington immediately in writing so that Pilkington can bring a third party action (§ 771 ZPO) if necessary. 5.7 The customer remains authorized to collect the assigned claim within the framework of proper business management, provided that he meets his payment obligations towards Pilkington. The collection authorization expires if the customer is in default of payment or in financial collapse. The customer is not entitled to agree a current account relationship or a ban on assignment with regard to the assigned claim. If, however, a current account relationship should have been agreed between the customer and his purchaser, the claim assigned in advance also relates to the recognized balance and, in the event of the customer's insolvency, also to the existing balance. 5.8 Upon request, the customer must provide Pilkington with individual evidence of the claims assigned to Pilkington and notify his debtors of the assignment. Pilkington reserves the right to inform the customer's debtors of the assignment and to collect the claims itself. As soon as Pilkington makes use of this right, the customer is obliged to inform Pilkington of all assigned claims and their debtors and to provide all information necessary for the collection of the claims as well as to hand over the associated documents. 5.9 If the realizable value of the collateral in favor of Pilkington exceeds the claims against the customer by more than 20%, Pilkington will release excess collateral at the customer's request. 6 Rights of the customer in the event of material defects Pilkington is liable for material defects as follows: 6.1 With regard to the delivered goods, the customer is responsible for the customary inspection and notification obligation (Section 377 of the German Commercial Code) with the proviso that the inspection obligation also applies in particular to moisture

20 Pilkington Deutschland AG General Terms and Conditions of Sale and Delivery 1 and obvious and / or recognizable errors must be reported in writing and specified within eight (8) calendar days at the latest, prior to handling, processing or connection. 6.2 All deliveries or services that show a material defect within the limitation period, the cause of which already existed at the time of the transfer of risk, are to be repaired, re-delivered or re-performed free of charge at Pilkington's option. Pilkington is entitled to make supplementary performance dependent on the immediate return of the defective goods. Before a material defect is recognized, replacement deliveries will first be charged by Pilkington. Pilkington only issues a credit note when Pilkington has acknowledged a material defect in the goods complained about. Pilkington expressly reserves the right to have the rejected goods checked. If a material defect is not recognized by Pilkington, the customer must have the goods picked up immediately. The goods made available will be disposed of no later than four weeks after the rejected goods have been checked and the result of the investigation has been communicated. 6.3 Claims for material defects become statute-barred after 12 months. This does not apply if the law is based on the customary use of an item for a building (Section 438 (1) No. 2 BGB), a right of recourse in the context of the sale of consumer goods (Section 479 (1) BGB) or a building defect (Section 634 a BGB) prescribes longer periods. The statute of limitations for claims of the customer against Pilkington due to defective goods occurs in any case as soon as the claims of the customer's contractual partner against the customer due to defects in the goods delivered by Pilkington to the customer have expired, but no later than five years after the point in time in where Pilkington delivered the goods to the customer. 6.4 In the event of notices of defects, payments by the customer may only be withheld to an extent that is reasonable in relation to the asserted defects. The customer can only withhold payments if a notice of defects is asserted whose justification there can be no doubt. If the complaint is wrongly made, Pilkington is entitled to demand that the customer reimburse the expenses incurred. 6.5 If the supplementary performance fails, the customer can, without prejudice to any claims for damages, withdraw from the contract or reduce the remuneration. The customer cannot demand compensation for wasted expenditure. 6.6 In the case of only insignificant deviations from the agreed quality, with only insignificant impairment of usability, in the case of natural

21 Base Glass 2014 1 1 wear and tear or damage that occurs after the transfer of risk as a result of incorrect or negligent handling, excessive use, unsuitable operating and cleaning agents, defective construction work, unsuitable subsoil or which arise due to special external influences that are not required under this contract , there are no claims for material defects on the part of the customer. The same applies to defects of any kind in the case of used goods or goods that have been agreed to be declassed. If improper changes or repair work are carried out by the customer or a third party, there are no claims for defects for these or the consequences thereof. This applies in particular to violations of the processing guidelines for the individual products, the cleaning instructions or other regulations customary in the industry. 6.7 Published functional data and all measured values ​​are based on measurements on standard structures and correspond to the applicable standards and the measurement conditions specified therein. Properties for the individual product cannot be derived from this. Depending on the installation situation of the glasses, deviations from the specified values ​​are possible. These cannot be the subject of a claim against Pilkington. 6.8 Claims by the customer due to the expenses necessary for the purpose of supplementary performance are excluded if the expenses increase because the goods have subsequently been moved to a location other than the place of delivery. 6.9 The customer has recourse claims against Pilkington insofar as the customer has not made any agreements with his customer that go beyond the statutory claims for defects. For the scope of the customer's right of recourse against Pilkington, the above section 6.8 of these General Terms and Conditions of Sale and Delivery shall apply accordingly. 6.10 Clause 8 of these general terms and conditions of sale and delivery applies to claims for damages (other claims for damages). Further or other claims of the customer against Pilkington and against Pilkington's vicarious agents due to material defects are excluded. 7 industrial property rights and copyrights; Defects in title 7.1 Unless otherwise agreed, Pilkington is obliged to make the delivery free of industrial property rights and copyrights of third parties (hereinafter: property rights) only in the country of the place of delivery. So

22 Pilkington Deutschland AG General Terms and Conditions of Sale and Delivery 1 if a third party makes legitimate claims against the customer due to the infringement of industrial property rights through deliveries made by Pilkington and used in accordance with the contract, Pilkington shall be liable to the customer within the terms specified in Section 6.3 of these General Terms and Conditions of Sale and Delivery Deadline as follows: a) Pilkington will, at its own discretion and at its own expense, either obtain a right of use for the goods in question, modify the goods in such a way that the property right is not infringed or exchange the goods. If this is not possible for Pilkington on reasonable terms, the customer is entitled to the statutory right to withdraw from the contract or to reduce the price. The customer cannot demand compensation for wasted expenditure. b) Pilkington's liability for damages is based on Section 8 of these General Conditions of Sale and Delivery. c) The aforementioned obligations incumbent on Pilkington only exist if the customer immediately notifies Pilkington in writing of the claims asserted by third parties, does not acknowledge an infringement and Pilkington reserves the right to take all countermeasures and settlement negotiations. If the customer ceases to use the delivery in order to reduce the damage or for other important reasons, he is obliged to point out to the third party that the cessation of use does not constitute an acknowledgment of an infringement of industrial property rights. 7.2 Claims by the customer are excluded insofar as he is responsible for the infringement of industrial property rights or insofar as the infringement of industrial property rights is caused by special requirements of the customer, by an application not foreseeable by Pilkington or by the fact that the delivery is changed by the customer or together with not by Pilkington supplied products is used. 7.3 In the event of infringement of property rights, the provisions of Clauses 6.2, 6.4 and 6.8 of these General Terms and Conditions of Sale and Delivery shall apply accordingly to the customer's claims regulated in Clause 7.1 a). 7.4 In the event of other legal defects, the provisions of Section 6 of these General Conditions of Sale and Delivery apply accordingly. 7.5 Further or other claims of the customer against Pilkington and against Pilkington's vicarious agents due to a legal defect are excluded.

23Base glasses 2014 1 1 8 Other claims for damages 8.1 Claims for damages by the customer, regardless of the legal reason, in particular due to breach of obligations arising from the debt relationship and from tort, are excluded. 8.2 This does not apply if the law provides for mandatory liability, e.g. B. according to the Product Liability Act, in cases of willful intent, gross negligence, for personal injury, due to the assumption of a guarantee for the existence of a property or the violation of essential contractual obligations. The compensation for the breach of essential contractual obligations is limited to the contract-typical, foreseeable damage, unless there is intent or gross negligence or liability for physical damage or due to the assumption of a guarantee for the existence of a property. A change in the burden of proof to the detriment of the customer is not associated with the above regulations.8.3 Insofar as the customer is entitled to claims for damages under this Section 8, these shall become statute-barred upon expiry of the limitation periods applicable to claims for material defects in accordance with Section 6.3 of these general terms and conditions of sale and delivery. In the case of claims for damages under the Product Liability Act, the statutory statute of limitations apply.

24 Pilkington Deutschland AG General Terms and Conditions of Sale and Delivery 1 9 Terms of Payment 9.1 The invoice will be charged on the day of dispatch or the day of readiness for collection. 9.2 Pilkington's invoices are to be paid within 14 days of the invoice date without deduction, unless another payment term is contractually agreed or stated in the invoice. Checks and bills of exchange are not accepted. 9.3 If the payment deadline is exceeded and the default occurs, interest on arrears in the amount of eight (8) percentage points above the base rate applicable on the day the default occurs (Sections 288 (2), 247 BGB) will be charged. 9.4 Pilkington is entitled to offset incoming payments first against older claims, then against the costs and interest of the main service and only lastly against the main service itself. The customer is only entitled to set-off or retention rights if his counterclaims have been legally established, are not disputed by Pilkington or are recognized. Furthermore, the right of retention only exists if the asserted counterclaim is based on the same contractual relationship as Pilkington's claim. 9.5 If the customer is in arrears or if circumstances become known after the conclusion of the transaction which call into question the solvency or creditworthiness of the customer (e.g. suspension of payments, opening of insolvency proceedings), Pilkington is entitled to make the entire remaining debt due. Pilkington is also entitled to request advance payments or security deposits. 9.6 If a direct debit mandate (SEPA business direct debit mandate or SEPA core direct debit mandate) is issued to Pilkington, the customer or payer will be notified (pre-notified) of the debit of his bank account at least one working day before the due date. The customer or the debtor is obliged to ensure that there is sufficient funds in the account specified in the SEPA mandate

25 base glasses 2014 1 1 and ensure that the amounts due can be collected by Pilkington. This obligation also applies if the customer or the payer does not receive advance information or does not receive it in good time in individual cases. 10 Dimensions and definition of the glass thicknesses The specified gradations and glass thicknesses are not transferable to the application of the products. Glass thickness determinations and static verifications must be carried out in accordance with the applicable regulations. The glass thicknesses required for applications in building construction are based on the static requirements as well as legal and normative requirements. 11 Place of fulfillment, place of jurisdiction, other agreements 11.1 The place of fulfillment for all deliveries is the seat of the Pilkington delivery plant, for payment the seat of the delivery plant or Gelsenkirchen. 11.2 The exclusive place of jurisdiction for all lawsuits arising from the delivery contract is Gelsenkirchen, unless this is contrary to mandatory statutory provisions. Pilkington has the right to bring actions against the customer at the customer's place of jurisdiction. 11.3 The law of the Federal Republic of Germany applies exclusively to the exclusion of the law on the United Nations Convention on the International Sale of Goods (CSIG Vienna UN Sales Law). 12 Supplements to the contract Should one of the above provisions be or become ineffective or void or be excluded due to an individual contractual agreement or other cause, this shall not affect the validity of the remaining provisions. An ineffective or void provision is to be replaced by another provision that is legally effective and comes closest to the meaning of the ineffective or void provision in legal and economic terms.

26 Pilkington Deutschland AG thermal insulation glass 2

27Base glasses 2014 2 2 Thermal insulation glasses Base glass 2.1 Pilkington Optifloat ™ clear and colored Low-E glass 2.2 Pilkington Optitherm ™ S1 2.3 Pilkington Optitherm ™ S3 2.4 Pilkington Optitherm ™ GS 2.5 Pilkington Optitherm ™ S3 Pro T 2.6 Pilkington K Glass ™ N 2.7 Pilkington K Glass ™ N OW 2.8 Pilkington Spacia ™ 2

28 Pilkington Deutschland AG Thermal insulation Glass is an essential feature in modern architecture; For both aesthetic and practical reasons, glass is more popular than ever. Today, however, building owners, legislators and planners place higher demands on glass. In particular, the increasing importance of energy efficiency and stricter European guidelines are leading to increased demand for thermal insulation glass (LowEGlas). Thanks to advances in the development of thermal insulation glass, windows have made a significant contribution to energy savings and living comfort by minimizing energy losses and condensation on the inside. With our wide range of thermal insulation glass, we support you in meeting the requirements in terms of energy savings. * Profits and losses from single glass to high-end thermal insulation glass. Ug values ​​according to EN 673, g values ​​according to EN 410. The values ​​for double insulating glass units are based on 4164 standard structures with argon filling (90%). The values ​​for triple insulating glass units are based on 4124124 standard structures filled with argon (90%). The energy balance in comparison *: Pilkington K Glass ™ N double insulating glass unit 741.5 Pilkington Optitherm ™ S3 double insulating glass unit 631.1 Pilkington Optitherm ™ GS triple insulating glass unit 610.8 Clear float glass Double insulating glass unit 762.6 Clear float glass single glass 855, 8 Total energy permeability g-value in% energy loss in W / m²K thermal insulation glass 2

29Basisglass 2014 2 2 How the performance of thermal insulation is measured The heat loss is usually indicated by the Ug value, which expresses the proportion of heat loss in watts per m² per Kelvin. The lower the Ug value, the better the thermal insulation of the product. In addition to the Ug value, the total energy permeability (g value) also plays an important role in assessing the thermal insulation. This is the total amount of solar radiation that gets through the glass. It is made up of the direct energy transmission and the portion that is absorbed by the glass and then given off as heat to the side of the room. The higher the g value, the better the thermal insulation. How it works Thermal insulation glass reflects the thermal energy back into a building and thus achieves less heat loss than normal float glass. In addition, different types of thermal insulation glass allow different levels of passive solar gains, which can reduce heating requirements and costs, especially in cold months. Solar energy enters the building mainly as short-wave radiation. If it hits objects inside a building, it is converted into long-wave radiation. Thermal insulation glass has a special coating that is almost impermeable to this long-wave radiation, while at the same time the short-wave radiation can get through the glazing as much as possible. In order to maximize energy efficiency all year round, optimal glazing often combines sun protection and thermal insulation properties.

30 Pilkington Deutschland AG Advantages / properties: • High to very high thermal insulation with Ug values ​​below 1.0 W / m²K (Pilkington Optitherm ™ S1) in the standard structure (4164) with argon gas filling (90%) and 0.8 W / m²K ( Pilkington Optitherm ™ GS) in the standard triple thermal insulation glass also with an argon gas filling (90%), which significantly reduces heating costs. • High light transmission reduces the lighting in buildings. • Neutral color in transparency and reflection. • Can only be used in insulating glass units (coating in the double insulating glass structure generally on coating position # 3). • Can be combined as an insulating glass unit with sun protection glass to improve sun protection and thermal insulation properties. • Can be combined with other Pilkington products to achieve additional benefits such as self-cleaning, soundproofing and safety features (depending on the product). • Available as a tempered version - Pilkington Optitherm ™ S3 Pro T. OUTSIDE INSIDE Long-wave radiation Coating of insulating glass with thermal insulation coating Thermal insulating glass 2

31 base glasses 2014 2 2

32 Pilkington Deutschland AG 2.1 Pilkington Optifloat ™ clear and colored 2.1.1 Product description Pilkington Optifloat ™ is the basic glass of the Pilkington Group. It is manufactured at many locations (including in Germany in two plants each in Gladbeck and Weiherhammer) using the float glass process invented by Pilkington in England in the 1950s and widely licensed (see illustration). Pilkington Optifloat ™ offers options for further processing (coating, colored enamelling, thermal pre-tensioning, lamination) and processing (edge ​​processing, cut-outs, holes, model panes) as well as a wide range of colors, the depth of which depends on the thickness of the glass. In the clear glass version, the iron oxide content is around 0.1% by weight. Pilkington Optifloat ™ glasses, which are colored throughout, are available in gray, bronze, green and blue (Pilkington Arctic Blue ™). You will find all the relevant information on the following pages. Pilkington Optiwhite ™ is particularly low in iron oxide float glass. Further information can be found in chapter 7.4. Batch deposit Melting furnace Float bath Cooling channel (coating chamber) Uninterrupted glass ribbon Cross section Tape measure destacker Destacker for smaller dimensions Thermal insulation glass / base glass 2

33Base glasses 2014 2 2 2.1.2 Delivery program Dimensions, glass thicknesses For information on the Pilkington Optifloat ™ delivery program, see Chapter 10.1.1. Packaging Pilkington Optifloat ™ is supplied on reusable racks and in end caps. The following packaging units apply: Tape measures: per complete load 20 23 t 8 glass piles à 2.5 2.9 t 4 glass piles à 5.0 5.7 t 2 glass piles à 10.0 12.0 t Glass thickness 2 mm in BM is only Delivered packed on 10 t frames. Split tape measures: 8 glass joints of 2.5 t only end caps of 1.7 t and 2 t glass thickness 2 mm in GBM is only supplied loose on 10 t more put away or on 5 t racks type 23. 2.1.3 Technical data Light and energy data The values ​​given in the tables on the following pages are based on European standards, i. H. in particular to DIN EN 410. The light transmission corresponds to the measurement method D65 according to DIN EN 410. The information on light reflection relates to the entire pane when viewed from the outside or inside, not just to the respective glass surface. The data for the insulating glass structures are based on the assumption that not only the coated and colored glasses, but also the uncoated counter panes are products of the Pilkington Group. The standard structure is 4164 or 4124124 for the thermal insulation glass and 6164 or 6124124 for the sun protection glass, each with a 90% argon filling.

34 Pilkington Deutschland AG For further explanations, see the glossary in section 10.3.5. PilkingtonOptifloat ™ clear glass product product feature light valuesEnergy valuesS, TUV IW / m²K %%%%%%%%%% UTLgTLRLaRLiRaTEREAEgSTUV monolithic functional glass total energy transmittance light transmittance Ug value 2 color rendering index light reflection total energy transmittance 3 mm light reflectance 5 outside light transmittance 6 mm mm mm mm aaaaaa 5.8 5.8 5.8 5.7 5.7 5.6 91 91 90 89 88 87 89 88 87 84 82 80 91 91 90 89 88 87 8 8 8 8 8 8 8 8 8 8 8 8 99 99 99 98 98 97 88 87 85 81 79 76 8 8 8 7 7 7 14 15 17 12 14 17 89 88 87 84 82 80 1.02 1.03 1.03 1.06 1.07 1.09 76 72 68 60 57 52 Thermal insulation glass / basic glass 2

35 Base glasses 2014 2 2 For further explanations, see the glossary in section 10.3.5. PilkingtonOptifloat ™ Clear (continued) Glass product Product feature Luminous valuesEnergy valuesS, TUV IW / m²K %%%%%%%%%% UTLgTLRLaRLiRaTEREAEgSTUV monolithic functional glass Total energy transmittance, light transmission Ug value, color rendering index, light reflection, inside, light transmittance, light transmittance, 19 mm, total light transmittance, color rendering index, light reflection, inside, light transmittance, 19 mm, total light transmittance, color rendering index, light reflection, inside, light transmittance, 15 mm, total light transmittance, 10 mm, total light reflectance, total light transmittance, TUV IW / m²K %%%%%%%%%% UTLgTLRLa mm mm aaaa 5.6 5.5 5.4 5.3 87 85 83 81 77 74 70 66 87 85 83 81 8 8 8 7 8 8 8 7 97 96 94 92 73 68 63 57 7 7 6 6 20 25 31 37 77 74 70 66 1.13 1.15 1.19 1.23 49 46 42 38

36 Pilkington Deutschland AG For further explanations, see the glossary in section 10.3.5. PilkingtonOptifloat ™ gray glass product product feature light valuesEnergy valuesS, TUV IW / m²K %%%%%%%%%% UTLgTLRLaRLiRaTEREAEgSTUV monolithic functional glass total energy transmittance light transmittance Ug-value color rendering index light reflection total energy transmittance 3 mm light reflectance 5 mm reflection outside light transmittance 8 mm UV light reflectance 6 mm mm mm mm aaaaaa 5.8 5.8 5.7 5.7 5.6 5.6 65 57 50 44 35 27 71 66 61 57 50 44 65 57 50 44 35 27 6 6 6 5 5 5 6 6 6 5 5 5 98 97 97 96 95 93 64 57 51 45 36 28 6 6 6 5 5 5 30 37 43 50 59 67 71 66 61 57 50 44 0.92 0.86 0.82 0.77 0.70 0.61 33 26 21 18 12 8 thermal insulation glass / basic glass 2

37 Base glasses 2014 2 2 For further explanations, see the glossary in section 10.3.5. PilkingtonOptifloat ™ bronze glass product product feature light valuesEnergy valuesS, TUV IW / m²K %%%%%%%%%% UTLgTLRLaRLiRaTEREAEgSTUV monolithic functional glass total energy transmittance light transmittance Ug-value color rendering index light reflection total energy transmittance 3 mm light reflection 4 mm reflection outside light transmittance 8 mm UV light reflectance 6 mm light reflectance outside light transmittance mm mm mm aaaaaa 5.8 5.8 5.7 5.7 5.7 5.6 68 61 55 50 40 33 72 67 63 58 52 46 68 61 55 50 40 33 7 6 6 5 5 5 7 6 6 5 5 5 96 95 93 92 90 87 65 59 53 47 38 31 6 6 6 5 5 5 29 35 41 48 57 64 72 67 63 58 52 46 0.94 0.91 0.87 0.86 0.77 0.72 30 24 19 15 10 7

38 Pilkington Deutschland AG Thermal Insulation Glass / Basic Glass 2 For further explanations, see the glossary in section 10.3.5. PilkingtonOptifloat ™ green glass product product feature light valuesEnergy valuesS, TUV IW / m²K %%%%%%%%%% UTLgTLRLaRLiRaTEREAEgSTUV monolithic functional glass total energy transmittance light transmittance Ug-value color rendering index light reflection total energy transmittance 3 mm light reflectance 5 mm reflection outside light transmittance 8 mm mm mm mm aaaaaa 5.8 5.8 5.7 5.7 5.6 5.6 82 80 78 75 71 67 69 65 61 58 53 49 82 80 78 75 71 67 8 7 7 7 7 6 8 7 7 7 7 6 95 93 92 90 87 84 61 56 51 46 40 35 6 6 6 6 5 5 33 38 43 48 55 60 69 65 61 58 53 49 1.19 1.23 1.28 1.29 1.34 1.37 33 29 25 21 17 13

39Base glasses 2014 2 2 Pilkington Arctic Blue ™ can also be produced in combination with the self-cleaning Pilkington Activ ™ glass. For further details, please refer to Chapter 4, under the name Pilkington Activ ™ Blue. For further explanations, see the glossary in section 10.3.5. PilkingtonArcticBlue ™ glass product Product feature Luminous valuesEnergy valuesS, TUV IIIW / m²K %%%%%%%%%% UTLgTLRLaRLiRaTEREAEgSTUV insulating glass, Pilkington Optitherm ™ S3 # 3 monolithic functional glass total energy transmittance, light transmission, inside, light transmittance, light transmittance, light transmittance, light transmittance, light reflectance, outside reflectance, light transmittance, light transmittance, selectivity, light transmittance, light transmittance, light transmittance, outside reflectance index, 4, light transmittance, light transmittance, light transmittance, light transmittance IIIW / m²K, TUV IIIW / m²K %%%%%%%%%% UTLgTLRLaRLi 8 10 mma mma mma mma 4164a 6164a 5.8 5.7 5.6 5.6 1.1 1.1 64 54 45 38 57 48 59 50 44 40 40 32 64 54 45 38 57 48 6 6 5 5 8 7 16 16 15 15 12 11 86 80 73 67 85 79 48 37 29 23 34 27 6 5 5 5 10 8 46 58 66 72 56 65 59 50 44 40 40 32 1.08 1.08 1.02 0 .95 1.43 1.50 26 18 13 19 13 19

40 Pilkington Deutschland AG 2 Thermal insulation glass / Low-E glass Physical data See chapter 10.1.3. Tolerances See chapter 10.1.4. 2.1.4 Handling and processing guidelines • Float glass must be stored almost vertically, on an even surface, without direct glass-to-metal contact. • To avoid glass breakage and poor cuttability due to high temperature differences within the panes, eg. B. due to uneven absorption from, to avoid a cover against direct sunlight, preferably in a hall.• Dry storage (max. 70% rel. Humidity), again preferably in a hall, is very important in order to avoid irreparable damage from glass surface leaching. Likewise, there should be no significant temperature fluctuations that lead to condensation, such as when unloading cold glass in a warm hall.

41Base glasses 2014 2 2 2.2 Pilkington Optitherm ™ S1 2.2.1 Product description Pilkington Optitherm ™ S1 is a coated semi-finished product from the Pilkington Group for the manufacture of thermal insulation glass. It consists of Pilkington Optifloat ™ mirror glass, which is coated on one side with a silver-based coating. Pilkington Optitherm ™ S1 is neutral both in the external view and in transparency and is therefore very similar to an uncoated pane. Due to the coating facing the space between the panes of the insulating glass, heat losses are greatly reduced. The insulating glass coated with Pilkington Optitherm ™ S1 has excellent thermal insulation values ​​right at the limit of what is physically feasible. The further processing to insulating glass is necessary in any case, whereby the coating in the double insulating glass structure should always be in position # 3. Should position # 2 be selected anyway, the values ​​for light transmission, Ug value and sound insulation remain the same; all other values ​​can change. Once the coating position has been selected, it must be retained throughout a ribbon of windows and a facade. Otherwise deviations in the degree of reflection and in the color impression are to be expected. For triple thermal insulation glasses, the preferred coating positions are # 2 and # 5; H. on the two outer panes. 2.2.2 Delivery program Dimensions, glass thicknesses For information on the Pilkington Optitherm ™ S1 delivery program, see Chapter 10.1.1.

42 Pilkington Deutschland AG 2 Thermal insulation glass / Low-E glass combinations The table below shows the possible combinations for Pilkington Optitherm ™ S1 with functions other than semi-finished products. + SelbstreinigungPilkingtonActiv PilkingtonOptitherm ™ S1FunktionKombinationmitPilkingtonProduktbezeichnung WärmedämmungPilkingtonOptitherm ™ S1 WärmedämmungPilkingtonOptitherm ™ S3ProT WärmedämmungPilkingtonKGlass ™ N SonnenschutzPilkingtonSuncool ™ + SonnenschutzPilkingtonEclipseAdvantage ™ ™ + laminated safety glass PilkingtonOptilam ™ PilkingtonOptilam ™ ThermS1 + soundproofing laminated glass PilkingtonOptiphon ™ PilkingtonOptiphon ™ ThermS1 + WeißglasAusführungPilkingtonOptiwhite ™ PilkingtonOptitherm ™ S1OW + VorgespanntesGlasESG, TVGESGmitPilkingtonOptitherm ™ S1 GebogenesGlas AlsEinzelscheibe Usable Matching facade panel + Can be manufactured by Pilkington Germany AG + Can be manufactured by further processing companies Cannot be manufactured or not a meaningful combination

43Base glasses 2014 2 2 Packaging Tape measures are delivered in bundles of 2.5 tons. The tape measures are usually arranged on the frame so that the coating side faces inwards. The last pane of a package is a 4 mm Pilkington Optifloat ™ pane, which serves to protect the coated panes. There is a powder release agent between the panes. 2.2.3 Technical data Light and energy data Technical data for the Pilkington Optitherm ™ S1 is shown in the table on the next page. The technical data refer to European standards, i. H. in particular to DIN EN 410 and DIN EN 673, with a temperature difference of 15 degrees with vertical installation according to the German building regulations list. A space between the panes of 16 mm (or 2 × 12 mm for triple insulating glass) was assumed for the Ug values. Likewise, an argon filling of 90% was assumed in all cases, unless otherwise stated. The underlying glass thicknesses were in each case 4 mm. In all cases it is assumed that both the coated lenses and the uncoated counter lenses are products from the Pilkington Group. All data apply to vertical irradiation. The appearance in terms of color and reflection relates to a normal viewing position. At an acute viewing angle and a bright reflection image, there may be shifts in color. The emissivity values ​​εn of our coated glass products are noted in the tables in Chapter 10.1.2. There you will find further, detailed information on the Ug values ​​for the respective glasses, depending on the emissivity, with different gaps between the panes and gas filling levels. There is also an overview of Ug values ​​for triple insulating glass with argon and krypton filling for various spaces between the panes and coating emissivities.

44 Pilkington Deutschland AG 2 The basic glass may only be used as insulating glass. * Glass structure: 4124124 For further explanations, see the glossary in section 10.3.5.

45 Base glasses 2014 2 2 Physical data See chapter 10.1.3. Tolerances See chapter 10.1.4. Factory certificates A factory certificate is available for the Pilkington Optitherm ™ S1. 2.2.4 Handling and processing guidelines For handling and processing guidelines for Pilkington Optitherm ™ S1 see chapter 2.4.4.

Thermal insulating glass / Low-E glass 46 Pilkington Deutschland AG 2 2.3 Pilkington Optitherm ™ S3 2.3.1 Product description Pilkington Optitherm ™ S3 is a coated semi-finished product from the Pilkington Group for the manufacture of thermal insulating glass. It consists of Pilkington Optifloat ™ mirror glass, which is coated on one side with a silver-based coating. Pilkington Optitherm ™ S3 is neutral both in the external view and in transparency and is therefore very similar to an uncoated pane. Due to the coating facing the space between the panes of the insulating glass, heat losses are greatly reduced. The insulating glass coated with Pilkington Optitherm ™ S3 has excellent thermal insulation values ​​at the limit of what is physically feasible. At the same time, the high total energy permeability for solar radiation results in a particularly favorable passive use of solar energy. The further processing to insulating glass is necessary in any case, whereby the coating in the double insulating glass structure should always be in position # 3. Should position # 2 be selected anyway, the values ​​for light transmission, Ug value and sound insulation remain the same; all other values ​​can change. Once the coating position has been selected, it must be retained throughout a ribbon of windows and a facade. Otherwise deviations in the degree of reflection and in the color impression are to be expected. For triple thermal break glass, the preferred coating positions are # 2 and # 5; H. on the two outer panes. 2.3.2 Delivery program dimensions, glass thicknesses For information on the Pilkington Optitherm ™ S3 delivery program, see chapter 10.1.1.

47Base glasses 2014 2 2 Combinations The table below shows the possible combinations for Pilkington Optitherm ™ S3 with functions other than semi-finished products. PilkingtonOptitherm ™ S3FunktionKombinationmitPilkingtonProduktbezeichnung WärmedämmungPilkingtonOptitherm ™ S3 WärmedämmungPilkingtonOptitherm ™ S3ProT WärmedämmungPilkingtonKGlass ™ N SonnenschutzPilkingtonSuncool ™ + SonnenschutzPilkingtonEclipseAdvantage ™ + SelbstreinigungPilkingtonActiv ™ PilkingtonActivOptitherm ™ S3 + laminated safety glass PilkingtonOptilam ™ PilkingtonOptilam ™ ThermS3 + soundproofing laminated glass PilkingtonOptiphon ™ PilkingtonOptiphon ™ ThermS3 + WeißglasAusführungPilkingtonOptiwhite ™ PilkingtonOptitherm ™ S3OW + VorgespanntesGlasESG, TVGESGmitPilkingtonOptitherm ™ S3 Curved glass can be used as a single pane Matching facade panel + Can be manufactured by Pilkington Germany AG + Can be manufactured by further processing companies Cannot be manufactured or not a meaningful combination

Thermal insulation glass / Low-E glass 48 Pilkington Deutschland AG 2 Packaging Tape measures are delivered in bundles of 2.5 tons and / or 5 tons. The tape measures are usually arranged on the frame so that the coating side faces inwards. The last pane in each package is a 4 mm Pilkington Optifloat ™ pane, which protects the coated panes. There is a powder release agent between the panes. 2.3.3 Technical data Light and energy data Technical data for the Pilkington Optitherm ™ S3 is shown in the table on the next page. The technical data refer to European standards, i. H. in particular to DIN EN 410 and DIN EN 673, with a temperature difference of 15 ° C for vertical installation according to the German building regulations list. A space between panes of 16 mm (or 2 × 12 mm for triple insulating glass) was always assumed for the Ug values. An argon filling of 90% was also assumed in all cases, unless otherwise stated. The underlying glass thicknesses were in each case 4 mm. In all cases it is assumed that both the coated lenses and the uncoated counter lenses are products from the Pilkington Group. All data apply to vertical irradiation. The appearance in terms of color and reflection relates to a normal viewing position. At an acute viewing angle and a bright reflection image, there may be shifts in color. The emissivity values ​​εn of our coated glass products are noted in the tables in Chapter 10.1.2. There you will find further, detailed information on the Ug values ​​for the respective glasses, depending on the emissivity, with different gaps between the panes and gas filling levels. There is also an overview of Ug values ​​for triple insulating glass with argon and krypton filling for various spaces between the panes and coating emissivities.

49Base glasses 2014 2 2 The base glass may only be used as insulating glass. * Glass structure: 4124124 For further explanations, see the glossary in section 10.3.5. PilkingtonOptitherm ™ S3 Glass product Product feature LichtwerteEnergiewerteS, TUV IIIIIIIIIIIIW / m²K %%%%%%%%%% UTLgTLRLaRLiRaTEREAEgSTUV Triple insulating glass *, Pilkington Optitherm ™ S3 # 2 + 5 insulating glass, Pilkington Optithermington ™ S3 # 2 + insulating glass # 3 insulating glass, Pilkington Optitherm ™ S3 # 2 insulating glass, functional glass outside monolithic functional glass total energy transmission light transmission Ug-value color rendering index light reflection inside light reflection outside light transmission total energy transmission energy absorption energy reflection energy transmission energy transmission UV-transmission efficiency 1.2758a1851388380 , 2729 --- 0.7715071161696433324501.4215

Thermal insulation glass / Low-E glass 50 Pilkington Deutschland AG 2 Physical data See chapter 10.1.3. Tolerances See chapter 10.1.4. Factory certificates A factory certificate is available for the Pilkington Optitherm ™ S3. 2.3.4 Handling and processing guidelines For handling and processing guidelines for Pilkington Optitherm ™ S3 see chapter 2.4.4.

51Base glasses 2014 2 2 2.4 Pilkington Optitherm ™ GS 2.4.1 Product description Pilkington Optitherm ™ GS is the coated semi-finished product of the Pilkington Group for the production of triple thermal insulation glasses. It consists of Pilkington Optifloat ™ mirror glass, which is coated on one side with a silver-based coating. Pilkington Optitherm ™ GS is neutral both in the external appearance and in transparency and is therefore very similar to an uncoated pane. Due to the coating facing the space between the panes of the insulating glass, heat losses are greatly reduced. The insulating glass coated with Pilkington Optitherm ™ GS has excellent thermal insulation values. At the same time, the high total energy permeability for solar radiation results in a particularly favorable passive use of solar energy. Further processing into insulating glass is necessary in any case, whereby the coatings should always be in position # 2 and # 5. 2.4.2 Delivery program Dimensions, glass thicknesses For information on the Pilkington Optitherm ™ GS delivery program, see Chapter 10.1.1.

Thermal insulation glass / Low-E glass 52 Pilkington Deutschland AG 2 Combinations The table below shows the possible combinations for Pilkington Optitherm ™ GS with functions other than semi-finished products. PilkingtonOptitherm ™ GSFunktionKombinationmitPilkingtonProduktbezeichnung WärmedämmungPilkingtonOptitherm ™ GS WärmedämmungPilkingtonOptitherm ™ S3ProT WärmedämmungPilkingtonKGlass ™ N SonnenschutzPilkingtonSuncool ™ + SonnenschutzPilkingtonEclipseAdvantage ™ + SelbstreinigungPilkingtonActiv ™ PilkingtonActivOptitherm ™ GS + laminated safety glass PilkingtonOptilam ™ PilkingtonOptilam ™ ThermGS + sound insulation laminated glass PilkingtonOptiphon ™ PilkingtonOptiphon ™ ThermGS + WeißglasAusführungPilkingtonOptiwhite ™ PilkingtonOptitherm ™ GSOW + VorgespanntesGlasESG, TVGESGmitPilkingtonOptitherm ™ GS curved glass can be used as a single pane Matching facade panel + Can be manufactured by Pilkington Germany AG + Can be manufactured by further processing companies Cannot be manufactured or a meaningful combination

53Base Jars 2014 2 2 Packaging Tape measures are delivered in batches of 2.5 tons and / or 5 tons. The tape measures are usually arranged on the frame in such a way that the coating side faces inwards. The last pane of a package is a 4 mm Pilkington Optifloat ™ pane, which serves to protect the coated panes. There is a powder release agent between the panes. 2.4.3 Technical data Light and energy data Technical data for the Pilkington Optitherm ™ GS is shown in the table on the next page. The technical data refer to European standards, i. H. in particular to DIN EN 410 and DIN EN 673, with a temperature difference of 15 degrees with vertical installation according to the German building regulations list. A space between the panes of 16 mm (or 2 × 12 mm for the triple insulating glass) was always assumed for the Ug values. An argon filling of 90% was also assumed in all cases, unless otherwise stated. The underlying glass thicknesses were in each case 4 mm. In all cases it is assumed that both the coated and the uncoated glasses come from the Pilkington Group. All data apply to vertical irradiation. The appearance in terms of color and reflection relates to a normal viewing position. At an acute viewing angle and a bright reflection image, there may be shifts in color. The emissivity values ​​εn are noted in the Ug value tables in Chapter 10.1.2.

Thermal insulation glass / Low-E glass 54 Pilkington Deutschland AG 2 * Glass structure: 4124124 For further explanations, see the glossary in section 10.3.5. PilkingtonOptitherm ™ GS glass product Product feature LichtwerteEnergiewerteS, TUV IIIIIIIIIIIIW / m²K %%%%%%%%%% UTLgTLRLaRLiRaTEREAEgSTUV Triple insulating glass *, Pilkington Optitherm ™ GS # 2 + 5 insulating glass, Pilkington Optithermington ™ Opt # 3 insulating glass, Pilkington Optitherm ™ GS # 2 insulating glass, functional glass outside monolithic functional glass total energy transmission light transmission Ug value color rendering index light reflection inside light reflection outside light transmission total energy transmission energy absorption energy reflection energy transmission UV transmittance 81 69 selectivity index 73 1,3 72 a 61 89 81 81 73 18 14 14 19 17 14 14 1 19 98 98 97 74 65 65 53 14 19 19 23 12 16 16 24 69 72 61 1.17 1.13 1.20 25 25 11

55 Base glasses 2014 2 2 Physical data See chapter 10.1.3. Tolerances See chapter 10.1.4. Factory Certificates A factory certificate is available for the Pilkington Optitherm ™ GS. 2.4.4 Handling and processing guidelines The following processing guidelines apply equally to the thermal insulation glass Pilkington Optitherm ™ S1, Pilkington Optitherm ™ S3 and Pilkington Optitherm ™ GS. Unloading The glass stacks with Pilkington Optitherm ™ S1, Pilkington Optitherm ™ S3 and Pilkington Optitherm ™ GS must be checked for damage immediately upon delivery. The rack must then be properly unloaded on a flat surface with suitable equipment in a dry and ventilated place and then stored. Condensation on the glass surface must be avoided. All relevant safety regulations must be observed.

Thermal insulation glass / Low-E glass 56 Pilkington Deutschland AG 2 All tools and devices must comply with the applicable regulations and have been officially approved. The safety of staff must be guaranteed at all times, including: through adequate training, through appropriate protective clothing and through limiting the number to the absolutely necessary minimum. Storage conditions, storage times Pilkington Optitherm ™ S1, Pilkington Optitherm ™ S3 and Pilkington Optitherm ™ GS must be stored in a dry and ventilated place.The relative humidity should not exceed 70% and the temperature should not drop below 15 ° C. In general, greater temperature and humidity fluctuations, which could cause condensation on the glass, should be avoided. The shelf life of tape measures and split tape measures is: • 6 months from delivery. • In the case of loose sections, processing should be carried out immediately. • The storage of packed solid measures should not exceed three weeks. • After opening the packaging, the glass must be processed immediately. Handling When handling the Pilkington Optitherm ™ S1, Pilkington Optitherm ™ S3 and Pilkington Optitherm ™ GS, the following instructions must be observed: • In all work situations in which there is manual contact with the coated glass pane, for safety reasons and to avoid contamination of the coating suitable and clean gloves are worn. • No suction cups may be used on the shift side for loading, unloading or transport. • When storing and transporting individual fixed dimensions or sections, layer damage through the use of spacers or paper interlayers must be avoided. • If moisture appears on the coating, the corresponding pane must be washed and dried immediately. Otherwise, this moisture can cause damaging reactions on the coating, which in turn can impair the quality. • The coating must face upwards on the cutting table during handling and processing. To avoid marks or other damage caused by rubbing or the like. To avoid this, the layer side must not come into contact with unsuitable synthetic material or with metal objects. This applies in particular to the cutting of model panes, as the coating can be damaged by negligent placement of rulers or templates.

57Base Glasses 2014 2 2 Cutting To avoid damage to the coating by the rolls, the cutting must always be made on the coated side. A suitable cutting fluid must be used for this, or the glass must be cut dry. If the glass is cut automatically, care must be taken that the coated surface is not damaged or soiled by the cutting system. Edge stripping In order to achieve good adhesion of the glass with the primary and secondary sealing materials, the coating of the Pilkington Optitherm ™ S1, Pilkington Optitherm ™ S3 and Pilkington Optitherm ™ GS pane must be removed in the edge area. The coating should be sanded off with a suitable grinding wheel. The width of the edge stripping depends on the insulating glass system used. It should be wide enough so that the edge of the layer reaches up to the butyl cord. Washing The washing machine must be suitable for processing coated glasses. The recommendations of the manufacturers of washing machines for coated glass must be observed. Pilkington Optitherm ™ S1, Pilkington Optitherm ™ S3 and Pilkington Optitherm ™ GS must be transported on the uncoated side. To avoid scratches, we recommend using soft roller brushes with a bristle diameter <_ 0.20 mm and adjusting the brush contact pressure to the respective glass thickness. It must be avoided that the glass remains in the washing machine. The cleaning result depends on the combination of various factors, such as: B. Water quality, water temperature, washing speed, drying, etc. For an optimal cleaning result, we recommend using deionized water with a specific conductivity <_ 10 µS / cm. Usually it is not necessary to add detergents. We recommend regular cleaning of the car wash at no more than weekly intervals. We offer our support for any further questions. The work steps cutting, edge stripping and washing should be carried out during one working day. Otherwise, appropriate temporary storage in a warm and dry place must be ensured. Insulating glass production The coating must face the space between the panes of the insulating glass. The insulating glass units should be filled with argon to improve thermal insulation. Filling with dry air, krypton, xenon or a mixture of these gases is also possible within the scope of the respective product description. Suitable sealants and desiccants should be used in accordance with the general recommendations for the gas being used.

Thermal insulation glass / Low-E glass 58 Pilkington Deutschland AG 2 The manufacture of the insulating glass composite is the sole responsibility of the processor. Insulating glass transport and storage The insulating glass manufactured using Pilkington Optitherm ™ S1, Pilkington Optitherm ™ S3 and Pilkington Optitherm ™ GS must not be transported or stored in a stack in direct sunlight. To avoid glass breakage due to overheating, the insulating glass stack should always be covered with a light, opaque film. The edges of the panes should not be damaged during transport, storage and installation. Color deviations Due to the production process, slight color fluctuations in coated glasses are unavoidable. The color tolerances for insulating glass based on Pilkington Optitherm ™ S1, Pilkington Optitherm ™ S3 and Pilkington Optitherm ™ GS are in the range ∆E * <_ 3. Quality control Pilkington Optitherm ™ S1, Pilkington Optitherm ™ S3 and Pilkington Optitherm ™ GS as well as those based on them Laminated glass and ESG variants must be checked upon receipt of the goods for completeness of the delivery and for obvious mechanical and optical damage, such as: B. Breakage and moisture. Furthermore, they should be visually inspected for defects in reflection and transmission before they are put together to form insulating glass. The tests are to be carried out at a distance of about three meters from the surface to be tested in diffuse daylight without direct sunlight. The essential criteria for the quality assessment according to EN 1096 are summarized below: • Spots and homogeneity errors in color, reflection and transmission are permitted as long as they are not perceived as visually disturbing. • Dirt spots and punctiform defects in the coating that are larger than 3 mm are not permitted. Individual defects with a size between 2 mm and 3 mm are acceptable, with no more than 1 defect per square meter of glass surface. An accumulation of point errors is not allowed. • Scratches longer than 75 mm and not in the edge zone (5% of the length or width of the pane) are not permitted. They may be present in the edge area if they are more than 50 mm apart. Scratches smaller than 75 mm are acceptable as long as their accumulation is not perceived as a nuisance. Materials for further processing For suppliers and purchasing options for materials for further processing, see Chapter 10.1.5.

59Base glasses 2014 2 2 2.5 Pilkington Optitherm ™ S3 Pro T 2.5.1 Product description Pilkington Optitherm ™ S3 Pro T is a coated semi-finished product from the Pilkington Group for the production of thermally toughened thermal insulation glass. The silver-based coating is available on Pilkington Optifloat ™ mirror glasses. Pilkington Optitherm ™ S3 Pro T is a preliminary product that has to be thermally toughened in order to achieve its full properties and its final appearance. Pilkington offers every new customer on-site support for process testing and optimization. In addition, further processing into insulating glass is necessary in any case, whereby the Pilkington Optitherm ™ S3 Pro T coating in the double insulating glass structure should always be in position # 3. Due to the coating facing the space between the panes of the insulating glass, heat losses are greatly reduced. The insulating glass coated with Pilkington Optitherm ™ S3 Pro T with 16 mm cavity and argon filling has a Ug value of 1.1 W / m²K according to DIN EN 673, with a temperature difference of 15 degrees with vertical installation according to the German building regulations list (further explanations can be found in Chapter 10.1 .2). At the same time, the high total energy permeability for solar irradiation results in favorable passive use of solar energy. Pilkington Optitherm ™ S3 Pro T is neutral both in the external view and in transparency and is therefore very similar to an uncoated pane. 2.5.2 Delivery program dimensions, glass thicknesses For information on the Pilkington Optitherm ™ S3 Pro T delivery program, see chapter 10.1.1.

Thermal insulation glass / Low-E glass 60 Pilkington Deutschland AG 2 Combinations The table below shows the possible combinations for Pilkington Optitherm ™ S3 Pro T with other functional glass. + HerstellbarvonPilkingtonDeutschlandAG + obtainable by further processing company Nichtherstellbarbzw.keinesinnvolleKombination PilkingtonOptitherm ™ S3ProTFunktionKombinationmitPilkington Product WärmedämmungPilkingtonOptitherm ™ S1, S3, GS WärmedämmungPilkingtonOptitherm ™ S3ProT WärmedämmungPilkingtonKGlass ™ N SonnenschutzPilkingtonSuncool ™ + SonnenschutzPilkingtonEclipseAdvantage ™ SelbstreinigungPilkingtonActiv ™ + VerbundSicherheitsglasNachdemVorspannenlaminierbar sound insulating laminated glass PilkingtonOptiphon ™ + WeißglasAusführungPilkingtonOptiwhite ™ PilkingtonOptitherm ™ S3 OWProT + VorzuspannendesGlasESG, TVG GebogenesGlas AlsEinzelscheibever reversible matching facade panel

61Base glasses 2014 2 2 Packaging Tape measures are delivered in batches of 2.5 tons and / or 5 tons. The tape measures are usually arranged on the frame so that the coating side faces inwards. The last pane in each package is a 4 mm Pilkington Optifloat ™ pane, which protects the coated panes. There is a powder release agent between the panes. 2.5.3 Technical data Light and energy data Technical data for the Pilkington Optitherm ™ S3 Pro T after proper thermal prestressing is shown in the table on the next page. The technical data refer to European standards, i. H. in particular to DIN EN 410 and DIN EN 673, with a temperature difference of 15 degrees with vertical installation according to the German building regulations list. A space between the panes of 16 mm (or 2 × 12 mm for the triple insulating glass) was always assumed for the Ug values. An argon filling of 90% was also assumed in all cases, unless otherwise stated. The underlying glass thicknesses were in each case 4 mm. In all cases it is assumed that both the coated lenses and the uncoated counter lenses are products from the Pilkington Group. All data apply to vertical irradiation. The appearance in terms of color and reflection relates to a normal viewing position. At an acute viewing angle and a bright reflection image, there may be shifts in color. The emissivity values ​​εn are noted in the Ug value tables in Chapter 10.1.2.

Thermal insulation glass / Low-E glass 62 Pilkington Deutschland AG 2 Technical values ​​after proper thermal pre-tensioning. The basic glass may only be used as insulating glass. * Glass structure: 4124124 For further explanations, see the glossary in section 10.3.5. PilkingtonOptitherm ™ S3ProT glass product product feature light valuesEnergy valuesS, TUV IIIIIIIIIIIIW / m²K %%%%%%%%% UTLgTLRLaRLiRaTEREAEgSTUV triple insulating glass *, Pilkington Optitherm ™ S3 Pro T # 2 + 5 insulating glass, Pilkington Optitherm # 2 + 3 ™ Pilkington Optitherm # 2 + 3 ™ Pilkington Optitherm # Pilkington Optitherm ™ S3 Pro T # 3 insulating glass, Pilkington Optitherm ™ S3 Pro T # 2 insulating glass, functional glass outside monolithic functional glass total energy transmittance light transmittance Ug value color rendering index light reflection inside light reflection outside light transmission total energy transmittance energy absorptiona transmittance a-a transmittance a- a- transmittance a- UV88 a reflection of energy a- a- transmittance of UV88 a- a- transmittance of the energy-absorption -a-transmittance of the UV -14a-UV88a 1,1805880131298552817581.3829 1.1806380121398552718631.2729 --- 0.7715071161696433324501.4215

63 Base glasses 2014 2 2 Physical data See chapter 10.1.3. Tolerances See chapter 10.1.4. Factory certificates A factory certificate is available for the Pilkington Optitherm ™ S3 Pro T.

Thermal insulation glass / Low-E glass 64 Pilkington Deutschland AG 2 2.5.4 Handling and processing guidelines Pilkington Optitherm ™ S3 Pro T must be unloaded and stored in a dry and ventilated place. The relative humidity should not exceed 70% and the temperature should not drop below 15 ° C. In order to avoid condensation and possible layer damage in cold weather conditions, you should wait until the temperature of the stack has adjusted to the ambient temperature before opening a closed stack. The shelf life of tape measures is: • 6 months from delivery. • Immediate processing of loose sections. • Coated panes must never be left with residues, e.g. B. cutting fluid or grinding water can be stored. Handling When handling Pilkington Optitherm ™ S3 Pro T, the following instructions must be observed: • Any damage to the layer, e.g. B. scratches must be avoided at all costs. • In all work situations in which there is manual contact with the coated glass pane, clean gloves must be worn to avoid fingerprints. • No suction cups may be used on the shift side for loading, unloading or transport. • No labels or markings may be applied to the layer side. • When storing and transporting individual fixed dimensions or sections, layer damage through the use of spacers or paper interlayers must be avoided. • If moisture appears on the coating, the corresponding pane must be washed and dried immediately. Otherwise, this moisture can cause damaging reactions on the coating, which in turn can impair the quality. • The coating must always face upwards on the cutting table during handling and processing. To make marks by rubbing or the like. To avoid this, the coated side must not come into contact with unsuitable synthetic material or metal objects (risk of damage to the coating!). This applies in particular to the cutting of model panes, as the coating can be damaged by negligent placement of rulers or templates.

65Base Glasses 2014 2 2 Cutting To avoid damage to the coating by the rolls, the cutting must always be made on the coated side. A suitable cutting fluid must be used or the glass must be cut dry. If the glass is cut automatically, care must be taken that the coated surface is not damaged or soiled by the cutting system. Edge stripping In order to achieve good adhesion of the glass with the primary and secondary sealing materials, the coating of the Pilkington Optitherm ™ S3 Pro T pane must be removed in the edge area. The coating should be sanded off with a suitable grinding wheel. The width of the edge stripping depends on the insulating glass system used. It should be wide enough so that the edge of the layer reaches up to the butyl cord. The edge stripping is ideally done online (when cutting) or offline (after toughening). Seam the edges Before the Pilkington Optitherm ™ S3 Pro T is toughened, the edges of the glass must be seamed. Ideally, a vertical combined grinding / washing machine is used for this. Manual cruciate ligament grinding is also possible (wet or dry). If pressure tapes come into contact with the coated surface, the tapes must be suitable for the surfaces. The surface of the belt must be clean and free of any deposits in order not to damage the coating. Since the water quality is very important for the processing of coated glass, no additives such as coolants and biocides should be used. Washing before toughening After hemming, but before toughening, Pilkington Optitherm ™ S3 Pro T must be washed off in a multi-stage washing machine using warm, demineralized water with a neutral pH value and soft roller brushes. The bristles of the brush may have a maximum diameter of 0.15 mm. Pre-rinsing before placing in the washing machine is beneficial. It is recommended to use fresh demineralised water with a temperature of max. 40 ° C for the first wash and for the intermediate wash. For the final rinse, fresh demineralized water must be used.The washing machine must be designed in such a way that the conveyor belt does not stop as long as the glass is under the brushes, otherwise

Thermal insulation glass / Low-E glass 66 Pilkington Deutschland AG 2 damage to the coating. When using washing machines that are not specifically designed for coated glass, the brush sections, guides and inner drive rollers may need to be modified, lifted or removed. Washing before toughening is an important part of the process. Regular maintenance and adjustment of the system must therefore be ensured. Since the water quality is very important when washing coated glasses, no detergents should be added to the water. Thermal tempering and bending In order for Pilkington Optitherm ™ S3 Pro T to have the required LowE and color properties, it must be thermally tempered. Any convection oven that is able to heat LowEGlas evenly can be used to temper the Pilkington Optitherm ™ S3 Pro T. The higher reflectivity of the coated glass surface (which must always be facing up) may make it necessary to adjust the maximum and minimum temperatures, cycle times and convection profiles of the oven. The parameters depend on the furnace type. The ESG stamp can be applied dry or contact-free. Very high temperatures should be avoided during the tempering process as they could have negative effects on the coating. Under certain circumstances it is possible to bend the glass slightly during the toughening process. However, this requires high temperatures. Customers who want to bend Pilkington Optitherm ™ S3 Pro T must check whether this has a negative effect on the coating. The furnace must be free of SO2. Hot storage Pilkington Optitherm ™ S3 Pro T can be hot soaked in gas or electric ovens without damaging the coating. Electric ovens are preferred, however, as they do not produce potentially corrosive combustion gases and there is less risk of condensation of water vapor inside the oven. Care should be taken to keep the time between tempering and hot storage as short as possible in order to minimize the risk of damage to the coating. PTFE spacers can be used to separate the glass sheets. However, these may only touch the glass at the edges in the area of ​​the existing or yet to be performed edge stripping. Visual inspection Pilkington Optitherm ™ S3 Pro T should be visually checked for defects in reflection and transmission before and after folding into insulating glass

67 base glasses 2014 2 2. The tests are to be carried out at a distance of about three meters from the surface to be tested in diffuse daylight without direct sunlight. The “Guideline for the Assessment of the Visual Quality of Glass for the Building Industry”, published by the Federal Flat Glass Association, Troisdorf, must be observed. See also chapter 10.3.1. Insulating glass units Before installing insulating glass units, Pilkington Optitherm ™ S3 Pro T must be washed in a multi-stage washing machine using warm, demineralised water with a neutral pH value and soft roller brushes. The bristles of the brush may have a maximum diameter of 0.15 mm. Fresh demineralized water must be used for all washes. The glass must be guided through the washing machine so that the coated surface faces outwards. The washing machine must be designed in such a way that the conveyor belt does not stop as long as the glass is under the brushes, otherwise the coating could be damaged. Since the water quality is very important when washing coated glasses, no detergents should be added to the water. If traces are left on the coating after handling, careful attempt can be made to remove it by hand using a solvent such as isopropyl alcohol and a soft, clean cloth. The coated surface of Pilkington Optitherm ™ S3 Pro T must always face the space between the panes of the insulating glass unit and should always be in position # 3 in the double insulating glass structure. In order to improve the thermal insulation, the spaces between the panes in the insulating glass units can be filled with a noble gas such as argon. The filling with gas does not have a negative effect on the coating. The sealants and desiccants used must comply with the general recommendations for the gas used. Since the edge of the glass has been stripped, most sealants, such as hot-melt butyls, polysulfides, urethanes and silicones, adhere like they do to uncoated float glass. Suitable racks must be used to safely transport insulating glass units with Pilkington Optitherm ™ S3 Pro T. The insulating glass units are to be separated by cork plates or similar spacers in order to avoid transport damage. Insulating glass units must not be stored in direct sunlight. When stored outdoors, the stack must always be lit with a light

Thermal insulation glass / Low-E glass 68 Pilkington Deutschland AG 2 must be covered with impermeable film in order to avoid glass breakage due to overheating. The insulating glass units must be handled carefully so as not to damage the edges of the glass during transport, storage and installation. Insulating glass units with Pilkington Optitherm ™ S3 Pro T must be glazed in accordance with national standards and technical regulations. Pre-tensioned blanks Pre-tensioned blanks made from Pilkington Optitherm ™ S3 Pro T can be transported if certain precautionary measures are taken. This is particularly advantageous if, for example, the toughening and production of the insulating glass unit do not take place at the same location. Once the toughened glass sheets have cooled, they should be separated and immediately packaged in plastic, with desiccant bags placed inside the packaging. Further information on suitable paper and desiccants is available on request. The packaging should only be opened immediately before using the glass panels. The toughened sheets must be processed into insulating glass units within seven days after toughening and within 72 hours after opening the packaging. Reorders, color deviations The production tolerances can lead to slight color fluctuations when reorders are placed. They are minimal when all glasses for an object are made in one production campaign. If panes for an object are ordered over a longer period of time, the manufacturer must be informed of this at the start of the order in order to avoid deviations in the color impression as far as possible. Materials for further processing For suppliers and purchasing options for materials for further processing, see Chapter 10.1.5.

69Basisglass 2014 2 2 Overview of processing times Delivery date 6 months <24 hours <24 hours <72 hours Cutting Edge processing / washing tempering / hot storage Insulating glass production

Thermal insulation glass / Low-E glass 70 Pilkington Deutschland AG 2 2.6 Pilkington K Glass ™ N 2.6.1 Product description Pilkington K Glass ™ N is a further development of Pilkington K Glass ™, our long-established online coated glass with low emissivity (LowE). Pilkington K Glass ™ N impresses with its improved optics, among other things. A new layer structure results in a lower roughness of the coating, which enables a coating at position # 4, which leads to an improvement in the Ug value to 0.9 W / m²K. Pilkington K Glass ™ N is a glass based on Pilkington Optifloat ™ mirror glass, which is pyrolytically coated on one side with metal oxide. The coating is chemically and mechanically very resistant. Further processing to insulating glass is the rule, but is not mandatory, such as. B. in composite or box window constructions. Although the Pilkington K Glass ™ N coating is weatherproof, it should i. d. Usually not used in position # 1, i. H. facing the weather side. If there is rain or condensation on the coated surface, the effect that improves the Ug value diminishes. However, the arrangement of the coating in position # 1 counteracts the formation of external condensate. Insulating glass using Pilkington K Glass ™ N, with its special infrared-reflecting coating, offers not only an improvement in the Ug value, but also a very high overall energy permeability g. The combination of these two properties results in a particularly favorable use of solar energy, i. H. a very low balance or equivalent Ug value. The best values ​​result from the arrangement of the coating in position # 3 (on the room-side pane towards the space between the panes), which is customary for double thermal insulation glass. If, in certain cases, the coating has to be placed in position # 2, the Ug value and the light transmission do not change, and the g value is reduced by approx. 7%. Pilkington K Glass ™ N is also neutral in appearance and transparency and is therefore very similar to uncoated insulating glass.

71Base glasses 2014 2 2 Outer pane Inner pane spacing, mm Window U-value, according to BAZ, W / m²K Pilkington Optifloat ™ Pilkington K Glass ™ N 70160 1.5 Pilkington K Glass ™ N thermal insulation glass, (Ug ≤ 1.6 W / m²K) ≥ 70 1.0 2.6.2 Delivery program dimensions, glass thicknesses Delivery on request. Because of the chemical and mechanical resistance of the Pilkington K Glass ™ N layer, the glass is also suitable for use in box windows because it can be used as a single pane. During a renovation, the requirements of the 1995 WSVO in the renovation area kF ≤ 1.8 W / m²K and the EnEV / Energy Saving Ordinance 2009 with Ug ≤ 1.5 W / m²K are met by simply replacing one uncoated glass panel with Pilkington K Glass ™ N. The coating must lie on an inner surface (position # 2 or # 3) of the box window. With the even more extensive combination with thermal insulation glass, very high requirements for thermal insulation according to EnEV are also met.