Vena Ltd are the exclusive UK agent for OKALUX GmbH, who provide a wide range of innovative functional glazing solutions that incorporate different materials such as wood and metal within the glazing for both visual and functional benefits, improving the way natural light is utilised within the building space.


By looking at what you want to achieve at an early stage, and working with your preferred framing suppliers, we can assist in preparing specifications and cost planning through to the final realisation of the project.


Please have a look at the following pages, and links to the Okalux web site, to see examples of projects we have realised over recent years, as well as information about the full OKALUX range of glazing solutions.


We look forward to working with you...

Cité de Océan
France
Photograph Sergio Guerra

GENERAL CONDITIONS OF PURCHASE

of OKALUX GmbH Version: 18.12.2014

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1. Generally


1.1 These General Conditions of Purchase are only intended for use in business dealings with companies as our suppliers.


1.2 Our conditions of purchase shall exclusively apply for all contracts with our suppliers; other terms and conditions shall not become a part of the contract, even if we do not expressly object to them. In an ongoing business relationship, our conditions of purchase shall apply even if we do not expressly refer to their application in subsequent orders. The supplier can only rely on contractual changes, amendments or additional agreements if they have been promptly confirmed in writing.


1.3 In the event of acts of God as well as strikes, lock-outs or other events that are not our responsibility, through which our own sales are significantly impeded, we can withdraw from the supply contract, in whole or in part, or demand performance at a later point in time.


1.4 Setoff or retention by the supplier is only permissible with counter-claims that are undisputed or have been determined by a court of law. We can save data necessary for contract implementation on computer systems. The assignment of claims against us arising from the contractual relationship is prohibited without our express approval.


1.5 The place of performance for deliveries and all obligations resulting from the contract is our factory in D - 97828 Marktheidenfeld. At our option, the place of venue shall be D - 97737 Gemünden a. Main / D - 97070 Würzburg or the court having jurisdiction for the registered office of the supplier. German law shall be exclusively applied to the exclusion of the UN Convention on the International Sale of Goods.


2. Prices, invoicing


2.1 Suppliers' prices are maximum prices carriage paid to our factory. They shall include the costs of freight, customs, packaging, expenses and sales tax.


2.2 Supplier's invoices must be sent to us in duplicate, separately from the deliveries, and can be paid by us within 14 days after receipt of the invoice and complete receipt of the defect-free goods with a cash discount of 3% or within 30 days without deduction.

3. Shipping, delivery period/dates, delay, risk


3.1 Packaging, shipping and insurance of the contractual products shall be procured for the account and at the risk of the supplier. The supplier shall also be responsible for the return of used packaging in accordance with the German Packaging Directive (VerpackVO), at his own expense. A delivery note (in duplicate) must be enclosed with each shipment. The supplier must send us a written notification of dispatch on the day of dispatch.


3.2 The supplier must strictly comply with the stipulated delivery periods and dates, understood to be delivered to the stipulated place of delivery. The supplier must immediately give notice if it is anticipated that he can not meet agreed-upon delivery periods or dates. He must make every effort to supply the contractual products as quickly as possible in the event of culpable failure to comply. In particular, the fastest possible method of shipping must be selected; the additional costs caused thereby shall be borne by the supplier.


3.3 The supplier can only invoke a lack of raw materials, supplies and operating materials or defective delivery by his supplier if he is not responsible for these circumstances and notifies us immediately of their possible threat.

3.4 Risk does not transfer to us until the goods have been unloaded in our factory.


4. Quality, acceptance, limitation of claims for defects


4.1 In addition to the specifications set forth in the supply contract, quotation and/or order confirmation, the relevant statements of the supplier in his brochures, catalogs and other documents available to us, as well as in his advertising, are deemed to apply for the quality of the contractual products/services. The agreed-upon quality also implies that the contractual products/services comply with the latest state of technology, top-quality workmanship, the agreements reached, the intended purpose, the agreed and inspected equipment, the required product safety and the currently applicable statutory, official and technical provisions.


4.2 The supplier must carry out a careful inspection of quality and outgoing goods - also covering product safety - in compliance with the applicable standards. The supplier has the obligation to delivery contractual products/services that are tested for quality.


4.3 Acceptance, approval and/or payment of the contractual products/services does not indicate recognition that they are free of defects. These are always made subject to reservation. With respect to clause 4.2, our incoming goods inspection covers the examination of outwardly visible damages and observable discrepancies in quality and quantity. We will report such defects immediately. In addition, we will report defects as soon as they are discovered in the orderly course of business. The supplier waives the objection of delayed notification of defects to the extent they are not raised later than one week after discovery of the defect.


4.4 If in urgent cases the supplier does not immediately rectify defects in the contractual products, or any resulting damage, despite notification, or if the supplier is in default in the performance of the rectification of defects incumbent upon him, we may rectify the defects/damage ourselves at the expense of the supplier, or have them rectified by third parties.


4.5 Unless statutory periods of limitation should be longer, our claims for defects become time-barred in 3 years. For an item used for a structure in accordance with its usual manner of use and which has caused its defectiveness, our claims for defects become time-barred in 6 years. The limitation of actions begins with the delivery of the item.


5. Product safety, product liability


5.1 The supplier hereby guarantees that the contractual products and/or services are not unsafe and are not dangerous for their use or consumption in accordance with the intended use or foreseeable non-intended use, for the purpose of product liability. He shall take all necessary and reasonable organizational, personal and technical safety measures.


5.2 In the event that a claim is asserted by our customers or third parties for damage based on unsafe contractual products and/or services, the supplier shall indemnify us internally if and to the extent that he is at fault. Our claim to indemnification is subject to the standard period of limitation.


5.3 If and to the extent that the supplier is responsible for the defect leading to the liability, he shall also bear the costs for the measures taken by us to prevent damage (e.g. recalls).


5.4 The supplier must insure himself to a reasonable amount against the risks related to product liability for the contractual products and/or services supplied by him and provide us with evidence of this insurance coverage.


6. Subsequent Deliveries / Disposal


6.1 The supplier agrees that in all cases of broken glass, including cases in which the supplier is not at fault and cannot be held responsible, as well as in cases in which a subsequent order is necessary or desired for other reasons, the supplier shall execute the said subsequent order on the terms regarding quality, prices and delivery times as were agreed for the original order. This commitment of the supplier in respect to subsequent and replacement orders ends 12 months after complete processing of the original order.


6.2 In the production and delivery of the contractual products, the supplier agrees to take account of and comply with all current conditions and provisions relating to environmental protection and waste disposal.


7. Intellectual property rights, confidentiality, moulds and tools.


7.1 If and to the extent that the supplier is at fault, it shall be liable to us for ensuring that the use or distribution of the contractual products is permissible without infringing upon the intellectual property rights of others. It shall indemnify us against any legal claims by third parties for the infringement of such intellectual property rights in connection with the contractual products.


7.2 We reserve the ownership as well as all intellectual property rights and copyrights of designs, moulds, tools, samples, illustrations and other documents provided by us. The supplier may only use these designs etc. in the manner intended by us, and must return them if it no longer needs them for us.


7.3 The supplier must maintain confidentiality vis-à-vis third parties with respect to all trade secrets, in particular know-how, of which it gains knowledge through its business relationship with us.


7.4 Tools, moulds and other devices which the supplier produces or procures, in whole or in part at our expense, automatically become our property upon production or procurement. The supplier shall keep them for us free of charge and with all due care for the duration of the supplier relationship.


8. Minimum wage


The supplier warrants and shall bear full liability towards us for ensuring that it meets the requirements of minimum wage legislation – to the extent that such legislation exists – and accordingly pays its employees the statutory minimum wage or more. The supplier shall also warrant and ensure the same when for its part commissioning the services of a sub-contractor or a chain of sub-contractors.


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General Notes on Offers

Stand: 1109

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Please observe the information contained in this document download, which is aimed at protecting you and your customers from damage and so as not to endanger any claims for compensation and warranty claims. The information is designed to draw your attention to specific details which are often overlooked, but are important, and therefore must be considered. As such recommendations are of a general nature, and not aimed at each specific case, they do not lay claim to completeness. All valid laws, directives, standards and recognised technological regulations must also be observed. Please refer to the separate enclosures for product-specific information. Please contact us if there is any doubt. Non-compliance with this information will endanger any claims for compensation or warranty claims.


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General T & C’s for Quotations

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1.1 Validity

The prices are valid for orders with of the requested quantity. In case of measure and quantity change or an individual reordering a recalculation is required.


1.2 Surface calculation

Unless agreed otherwise, the minimum calculation surface is 0.5m². In order to calculate unitprices, the length dimensions (width and height) are rounded up to the nearest amount in centimetres divisible by 3. In the case our pricing is not based on requested dimensions, thesquare metre prices apply to panes with a maximum size of 4m², largest edge length 3 m and average for the order of 1m². When lacking knowledge of individual measurements, we reserve the right to make a price increase, provided that the wastage ratio is above 20%. When calculating the glass surface the smallest circumscribed rectangle must be taken into account.


1.3 Size surcharges

Due to the variety of different glass type, inlets and constructions, the surcharges will be calculated individually on inquiry. Generally speaking, oversize and model surcharges are calculated on the prices proposed.


Major oversize surcharges:

> 2700 x 2700 mm 30%

> 3850 mm 15%

> 4300 mm 20%

> 5000 mm 30%

> 6000 mm 100%

Please note our maximum production quantities depending on the insulating structure.


1.4 Model

Model panes are charged according to the smallest circumscribing rectangle based on information from the customer, plus the applicable model surcharge.

The surcharge for model panes with three right angles and one oblique edge is 30%. We can provide information about other surcharges and dimensions on request.

Example:

Pricing angels

The model surcharges apply to all separately listed additional prices, such as edge processing, screen printing, surcharges for excess lengths, drilling holes, etc.


1.5 Stepped glazing unit

In the case of stepped glazing units, the dimensions of the larger pane are used as the basis. We supply stepped glazing units with one step at no extra charge. Please request the extra charges for additional steps.

In the case of projecting glass involving soft-coated panes, the effect of the oxidation process on the coating can become visible in the installed condition and lead to complaints. It is recommended that shading of this area by means of a stuck-on fascia board should be provided right from the price inquiry stage.


1.6 Edge processing

Edge processing is generally charged by minimum length of 1000 mm, based on the edge length of the smallest circumscribed rectangle.


1.7 Screen printing costs

Relevant for the calculation of the screen printing is the smallest circumscribed rectangle of the entire glass surface. This also applies for a partially printed glass.


1.8 Commissioning

For deliveries according to Customers' packaging plan additional costs in the amount of € 7.50 per m² will be charged.



1.9 Shipping insurance

For all offers including fire-resistant glass, walkable glass and alarm glass an additional 2% shipping insurance on the net value will be incurred by the client.


1.10 Product documentation

It is necessary to inform us at the inquiry stage in case product documentation associated with costs is required, such as test certificates, technical certificates or manufacturer's reports.


1.11 Packaging

Unless agreed otherwise, we decide whether to make the delivery in crates or on loaned racks, according to practicality. In the case the customer requests special packaging (and this can be achieved), it is charged according to the costs incurred.

If packaging regulations are specified, the increased packaging and transport costs will be charged according to the costs incurred.

In the case weight limits are specified which entail increased packaging or transport costs then the additional costs incurred shall be passed on by us.

For deliveries on racks, there is no secondary packaging as standard. If stretch foil packaging is required around the panes as a protective measure (e.g. against dirt, UV radiation, etc.) then the additional cost is 0.50 €/m² plus VAT (calculated based on the glass). This must be agreed when the order is placed.


1.12 Freight costs for small quantities

When small quantities are ordered, the delivery time might be longer because separate transport cannot be justified on grounds of cost. If a particular delivery date is targeted but this cannot be achieved for the reasons mentioned above, then the product will be delivered without delay upon payment of the relevant freight costs.


1.13 Terms and conditions of payment

Unless agreed otherwise, invoices are due for immediate payment, without discount. Furthermore, our general terms and conditions of sale and delivery apply in the version applicable at the time when the contract is signed. We reserve the right to demand collateral.


1.14 Withholding

Refusing to pay for or withholding payments is excluded if the buyer knew the defect or other reason for complaint and has nevertheless accepted the goods. This applies, even if it remained unknown to him due to gross negligence, unless we have fraudulently concealed the defect or other reason for complaint.

Offsetting is permissible only with undisputed or legally effective counterclaims. Any witholding of payments from previous or other transactions of the ongoing business relationship is not permitted.


1.15 Validity of the offer

Unless agreed otherwise, prices are valid for six weeks. Prices do not include VAT.

Illustrations, calculations and technical specifications which we also supply are given in good faith, but do not represent any assurance of properties. The function values were calculated using the current DIN / EN standards, based on test samples. These values change slightly depending on the type of glass, glass thickness and dimensions and musrt be requested anew, if necessary.

Specified delivery times may vary according to the season, and therefore it is only possible for confirmed delivery times to be stated on placement of the order and in consultation with the upstream suppliers. Also, such confirmations are dependent on our upstream suppliers rendering their own deliveries on schedule.

All orders are solely subject to our General Terms and Conditions of Business in the version applicable at the time when the contract is signed, which usually accompany our offers and order confirmations. We can send a copy of these general terms and conditions of business on request. They can also be downloaded from of www.okalux.com.


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General recommendations for glazing with OKALUX insulating glass products

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1. Design

The design must be in accordance with the current version of the "Technical Rules for the Use of Continuous Glazing" of the German Institute for Building Technology (DIBt).


2. Glass penetration

To prevent the glass edges being subjected to excessive thermal stress, the glass penetration on the inside pane must not exceed the depth of the edge joint or a maximum of 15 mm measured from the edge of the glass.

The glazing support must be screened by the outer window glazing bar or outer sealing tape to prevent heat from accumulating in the area of the support, even when exposed to oblique insolation. The width of the outer screen, measured from the edge of the glass, must be at least 15 mm.


3. Product-specific instructions for OKASOLAR insulating glass

OKASOLAR insulating glass is installed like standard insulating glass. In order to absorb the movements of the OKASOLAR louver inlets caused by temperature changes, a small clearance must be maintained between the inlet and the spacers. So that these do not become visible as a "viewing slot" after installation, the outer screen should overlap the edge of glass via the sealing system by at least 15 mm. As an alternative, the edge zone can be screened by a screen print.


4. Sealing tapes

For the glass support, we recommend sealing lip tapes made of APTK, EPDM or silicone of approx. 60° Shore hardness. Foam tapes are not suitable. With glass support tapes higher than 6 mm, there is a risk of deformation caused by pressure from the screws which hold down the cover strip and, consequently, a risk of fracturing the glass pane. For the outer seal, with designs which are slightly inclined or difficult to seal for other reasons, it is advisable to use silicon sealing-lip tapes since these are the only tapes which can re-seal.

According to the system manufacturer's instructions, the pressure exerted by the cover strips must be enough for the covering elements to exert a uniform pressure via the edge of the glass without bending it. The hollow sections of the sealing-lip tapes must not be crushed until they cease to be effective.


5. Padding

The materials which are used for padding must be rot-proof and free of plasticiser. With stepped insulating glass, for a maximum roof slope of 45°, it may be sufficient to secure the outer pane by offsetting the covering element. The real padding is applied to the inner pane.


6. Vapour pressure equaliser holes

The glazing rebate must be fully and permanently operational, dried and ventilated. Condensate or ingressed water must be able to drain at the ends of the glazing bars on the side of the eaves, particularly with sloping roof glazing.


7. Glass butt joints

To make sure that water can drain at glass butt joints unhindered, with roof glazing, we recommend a blunt glass butt joint with sheet metal bonded on top at the factory. Details must be agreed with us.


8. Point-supported and SG glazing

For point-supported glazing, please ask for our separate information sheet. Details on SG glazing (structural glazing) will need to be agreed with us where applicable.


9. Dangers with glass damage

Where we are unaware of the circumstances under which our insulating glass is being used, we assume that it is being used under normal conditions. Normal conditions are defined as humidity and air temperature conditions which generally prevail in areas used by people. Both the inner pane and the outer pane must be ventilated over their entire surface. Care must therefore be taken with frame designs, dummy glazing bars, wall connections, blackout systems inside and screening systems outside.

After glazing, damage can occur particularly from:

? Blackout and screening systems which have not been agreed

? Partial or complete screening of glass surfaces inside or outside

? Heating pipes near the frame, hot-air outlets near the glass

? Reflector lamps, baker's ovens and foundries

? Working with hot asphalt and hot bitumen inside or outside

? Welding and flexing work

? Lime, cement and silicon residues

? Glass adhesive residues which have not been removed

? Cleaning which has not been carried out properly


10. Cleaning instructions for OKALUX insulating glass products

Ask where applicable.


11. Preservation of capital

In order to maintain the guarantee and extend the life of the insulating glass, it is essential to carry out functional tests at regular intervals. All necessary maintenance work, such as checking the drainage and pressure equalisation holes, must be carried out regularly and in time.


12. Glazing details

On request, we are prepared to check the glazing details using structural plans which clearly show the details which are crucial for the safety of the insulating glass. The documents must be available in time to make any changes to the design which may be necessary.


13. Light calculations

On request, we will carry out daylight calculations as part of our free consultation service. Please note that these calculations and simulations cannot be used as a substitute for planning and assessment by a consulting engineers centre. They serve rather to make it easier to assess the effect of our glazing systems on the room climate and room lighting and compare it with that of standard situations.


14. Other printed matter

If you do not already have the following documents, please ask if you need them:

General instructions as well as advice on quotations and technical advice on OKALUX insulating glass products

Caution during installation

Cleaning instructions for OKALUX insulating glass products

General Terms and Conditions of Business

Product-specific information on:


OKASOLAR Glazing with Integral Sun Control Louvres

OKATHERM Double Glazing Units with heat and solar protection coating

OKALUX Insulating Glass products with alarm glass

OKALUX Insulating Glass with ceramic screen printing or enamelling

Use of OKAPANE / KAPIPANE in double-shelled U-profile glass


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Instructions on the delivery and installation of OKALUX glass products

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The following recommendations for glazing do not represent a complete set of rules. They are intended to highlight certain details which are frequently overlooked. Since such recommendations cannot do justice to every single case, they do not claim to be complete. All applicable laws, regulations, standards and recognized rules of engineering must be followed. With overhead glazing, the current rules for the use of continuously supported glazing especially must be followed.


It is advisable to consult us if there are any doubts.


1) Incoming goods

Delivery by carrier

If it has been found when the goods are received that they have been inappropriately stored or handled (e.g. crates lying on their side or damaged packaging) which suggests that the contents are damaged, any damage must be determined immediately. Any facts which are relevant to the damage must be noted down on the copy of the delivery note left with the recipient before the receipt of the delivery is acknowledged. Not following this instruction will result in the insurance cover possibly being invalidated. If necessary, consult our despatch department.


2) Unloading

If the goods are not unloaded by the company-owned vehicle, the recipient is solely responsible for unloading them where there is no other agreement for the individual case concerned. The goods must be unloaded on a suitable surface using suitable lifting equipment. Crates must be suspended in a slip individually or unloaded using a stacker where this is appropriate. Side pressure must be avoided. Thus, a forklift truck without crane girders is not suitable for unloading.


3) Storage

Glass crates must be transported upright and stored so that they are secured against falling over. Because of the risk of glass fracture in the glass stack due to the accumulation of heat, with crates and especially with open rack packing, it is essential to make sure that the glass is not exposed to the sun without protection and is protected from other sources of heat such as fire places, air heaters and bitumen kettles etc.

If there is a risk of frost, insulating glass which is stored in a stack, whether packed in crates or on racks, must be sufficiently protected from direct exposure to frost, otherwise the shock cooling effect on the edges of the glass may lead to thermal fractures in the glass. Because of the low temperature resistance of wired and wired mirror glass, it is particularly important to take this into consideration with such combinations of insulating glass. Repacking with film or corrugated paper is available subject to charge.


4) Installation

To prevent the build-up of heat, open the crates on the side away from the sun where possible (North in the northern hemisphere). Otherwise, protect panes in open crates, on the rack or stored in the open from direct sunlight.


5) Edge joint

So as not to damage the edge joint, the insulating glass must only be put down on a suitable support. Take particular care when tilting over the corner.


6) Ventilation

If ventilation on the construction site is planned for pressure equalisation for the OKATHERM insulating glass, the units must not be installed until we have carried out the pressure equalisation measures.

If pressure-equalisation holes are appropriate for OKALUX insulating glass, these must be positioned on the eaves side where possible (bottom).


7) Broken panes

Glass which is broken during transport or glass with other visible damage must not be installed without our agreement.

Since our lorries do not have side boards, broken panes cannot be taken back.


8) Labels

Labels and adhesive tapes applied for transport safety must be removed as quickly as possible after installation otherwise, if left, they will be difficult to remove and may leave adhesive residues. With planes which are coated on Position 1, it is even more important to remove the tape since the adhesive can attack the coating. In spite of removing the tape immediately, the position of the tape may still be visible later due to differences in wetting behaviour.


9) Glass rack

Glass racks are the property of Okalux. They are an important production aid and are taken back after they have been emptied. They must be cleared of packaging material or remaining panes, broken or otherwise. They must be made ready for collection at a collection point which is safe and accessible for lorries.

After they have been made ready, we ask that you notify us immediately from where the racks must be collected. The racks can be used for 45 days rent-free. After the rent-free period, €2.50 will be charged for each rack per day. Damaged racks and racks which have not come back to us within one year of delivery will be charged at the price of the original cost of acquisition.


10) Instructions to construction supervisors or owners After glazing, damage can occur from:

Working with hot asphalt and hot bitumen inside or on the roof

Blackout and screening systems which have not been agreed

Partially or totally covering or bonding glass surfaces

Heaters near the frame

Hot-air outlets near the glass and other sources which heat the glass surfaces unevenly

Welding and flexing work

Aggressive cleaning agents

Mortar and silicon residues

It is advisable to consult us if there are any doubts.


11) Design

The design must be in accordance with the current version of the "Technical Rules for the Use of Continuous Glazing" of the German Institute for Building Technology (DIBt) or other relevant standards and in accordance with the state of the art.


12) Glass penetration

To prevent glass edges being subjected to excessive thermal stress, the glass penetration on the inside glass pane must not exceed the depth of the edge joint or a maximum of 15 mm, measured from the edge of the glass.

The glazing support must be screened by the outer window glazing bar or outer sealing band to prevent heat from accumulating in the area of the support, even when exposed to oblique insolation. The width of the outer screen, measured from the edge of the glass, must be at least 15 mm.


13) Product-specific instructions for OKASOLAR insulating glass

OKASOLAR insulating glass is installed like standard insulating glass. In order to absorb the movements of the OKASOLAR louver inlets caused by temperature changes, a small clearance must be maintained between the inlet and the spacers. So that these do not become visible as a viewing slot after installation, the outer screen should overlap the edge of the glass via the sealing system by at least 15 mm. The edge zone can alternatively be screened by a screen print.


14) Sealing tapes

For the glass support, we recommend using sealing-lip tapes made of APTK, EPDM or silicone of approx. 60° Shore hardness. Foam tapes are not suitable. With glass support tapes higher than 6 mm, there is a risk of deformation caused by pressure from the screws which hold down the cover strip and, therefore, the risk of fracturing the glass pane. For the outer seal, with designs which are slightly inclined or difficult to seal for other reasons, it is advisable to use silicone sealing-lip tapes since these are the only tapes which can re-seal.

According to the system manufacturer's instructions, the pressure exerted by the cover strips must be enough for the covering elements to exert a uniform pressure via the edge of the glass without bending it. The hollow sections of the sealing lip tapes must not be crushed until lips they cease to be effective.


15) Padding

The materials which are used for padding must be rot-proof and free of plasticiser. With stepped insulating glass, for a maximum roof slope of 45?, it may be sufficient to secure the outer pane by offsetting the covering element. The real padding is applied to the inner pane.


16) Vapour pressure equalisation holes

The glazing rebate must be fully and permanently operational, dried and ventilated. Particularly with sloping roof glazing, the condensate or ingressed water must be able to drain at the ends of the glazing bars on the side of the eaves.


17) Glass butt joints

To make sure that the water can drain freely at the glass butt joints, with roof glazing, we recommend a blunt glass butt joint with sheet metal bonded on top at the factory. Details need to be agreed with us.


18) Point-supported and structural glazing

For point-supported glazing, please ask for our separate information sheet.v Details on flush-mounted glazing (structural glazing) will need to be agreed with us where applicable.


19) Dangers of glass damage

Where we are unaware of the circumstance under which our insulating glass is being used, we assume that it is being used under normal conditions. Normal conditions are defined as humidity and air temperature conditions which generally prevail in areas used by people. Both the inner pane and the outer pane must be ventilated over their entire surface. Care must therefore be taken with frame designs, dummy glazing bars, wall connections, blackout systems inside and screening systems outside.

After glazing, damage can occur particularly from:

Blackout and screening systems which have not been agreed

Partial or complete screening of glass surfaces inside or outside

Heating pipes near the frame, hot-air outlets near the glass

Reflector lamps, baker's ovens and foundries

Working with hot asphalt and hot bitumen inside or outside

Welding and flexing work

Lime, cement and silicon residues

Glass adhesive residues which have not been removed

Cleaning which has not been carried out properly


20) Cleaning instructions for OKALUX insulating glass products

Ask where applicable.


21) Preservation of capital

In order to maintain the guarantee and extend the life of the insulating glass, it is essential to carry out functional tests at regular intervals. All necessary maintenance work, such as checking the drainage and pressure-equalisation holes, must be carried out regularly and in time.


22) Glazing details

On request, we are prepared to check the glazing details using structural plans which clearly show the details which are crucial for the safety of the insulating glass. The documents must be available in time to make any changes to the design which may be necessary.


23) Glass structural analysis and glass stress analysis calculations

Please feel free to consult us if you need calculations for glass applications or information.


24) Light calculations

On request, we will carry out daylight calculations as part of our free consultation service. Please note that these calculations and simulations cannot be used as a substitute for planning and assessment by a consultant engineers office. They are used rather to make it easier to assess the effect of our glazing systems on the room climate and room lighting and compare it with that of standard situations.


25) Other printed matter

If you do not already have the following documents, they are available on request:


a) General instructions as well as advice on quotations and technical advice on OKALUX insulating glass products


b) Product information texts on:

OKALUX Light Diffusing Insulating glass

OKATHERM Double Glazing Units

OKAPANE Light-Diffusing Insulating Panels for U-profile Glass

KAPIPANE PMMA Transparent Insulation

KAPIPANE PC Transparent Insulation

KAPILUX T/ W Capillary System

KAPILUX WS Capillary System

KAPIPANE TWD Transparent Insulation

OKASOLAR W Glazing with Integral Sun Control Louvres

OKASOLAR Retro O, U Glazing with Integral Sun Control Louvres

OKASOLAR S Glazing with Integral Sun Control Louvres

OKASOLAR Retroflex Glazing with Integral Sun Control Louvres

OKAFLEX Flexible Light Control

OKAPOINT Point-supported Insulating Glass

OKAFROST Insulating Glass with Original Fällander Glass Etching

OKATECH Insulating Glass with Metal Insert

OKACELL Mono Photovoltaic Cold Facade

OKACELL Iso Photovoltaic Insulating Glass

OKAWOOD Insulating Glass with Wooden Insert

OKALUX Paneel for Insulating Glass products from OKALUX


c.) Customer instructions on:

Heat Soak Test

Alarm glass

Screen print

Quotations

Delivery and installation

Cleaning instructions for OKALUX insulating glass products

Guidelines for assessing the visual quality of insulating glass


d.) General Terms and Conditions of Business


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Cleaning instructions for OKALUX insulating glass products

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Please observe the following information aimed at protecting you and your customers from damage and so as not to endanger any claims for compensation and warranty claims. The following information is designed to draw your attention to specific details which are often overlooked, but are important, and therefore must be considered. As such recommendations are of a general nature, and not aimed at each specific case, they do not lay claim to completeness. All valid laws, directives, standards and recognised technological regulations must also be observed. Please refer to the separate enclosures for product-specific information. Please contact us if there is any doubt. Non-compliance with this information will endanger any claims for compensation or warranty claims.


As with all materials that come into contact with the environment OKALUX insulating glass products require regular cleaning to maintain their full brilliance.

Immediately after installation for the glass remove all labels, tape, adhesive and advertising stickers. Any adhesive left on the glass surface is cleaned off best with a clean cloth or paper tissue slightly moistened with petrol.


For normal cleaining use a soft, clean, grit-free cloth and a mild soap, detergent or conventional window cleaning solvent which do do not contain abrasive materials or acids. Rinse immediately with clean water, removing excess water with a clean squeegee, preventing the metal parts of cleaning equipment from contacting the glass surface. Abrasive cleaners, razor blades, cutters, putty knives, steel wool may cause scratches and damage to hard coated reflective surfaces.


Fingerprints and grease or mastic stains, paint and tar can be removed with solvents such as acetone, methyl ethylcetone (MEC) or ammonia provided that these products to not attack the seals and penetrate into the rebate. Always rinse immediately with clean water. Should trickling water carrying cement or steel residues come into contact with the glass the glass has to be cleaned more frequently, specially after every period of abundant rain. If an automatic cleaning machine is used it is best to test it out first before undertaking a large-scale cleaning project.


To maintan the condition of coatings, sealants, frames and facades no abrasive products or acid solutions may be used especially those containing chlorine, fluorine or alkalis. Avoid use of abrasive cleaners on all glass, but particularly on glass coated on their exterior surface.


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Cleaning instructions for OKACOLOR

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Please observe the following information aimed at protecting you and your customers from damage and so as not to endanger any claims for compensation and warranty claims. The following information is designed to draw your attention to specific details which are often overlooked, but are important, and therefore must be considered. As such recommendations are of a general nature, and not aimed at each specific case, they do not lay claim to completeness. All valid laws, directives, standards and recognised technological regulations must also be observed. Please refer to the separate enclosures for product-specific information. Please contact us if there is any doubt. Non-compliance with this information will endanger any claims for compensation or warranty claims.


DIGITAL PRINTING

Straight digital printing without the use of additional protection and covering paints may only be cleaned dry. In the event of contact with water or other liquid cleaning agent, the consequence will be peeling or changes in colour. For this reason, only soft, clean cloths may be used for cleaning. We also recommend the use of antistatic cloths. The use of brushes, sponges or similar cleaning aids can lead to mechanical damage to the printed surface and must therefore be avoided at all costs.


DIGITAL PRINTING with PROTECTIVE LACQUER

For digital printing covered with protective lacquer there is tested resistance to chemicals in accordance with DIN EN 12720 (test liquids and reaction times in accordance with DIN 68861 Part 1, stress group B) for 26 different substances such as, for example, household vinegar, 10% citric acid, alcohol, disinfectants, cleaning agents and other cold liquids. Cleaning agent tests were also carried out following ETAG 002. Resistance to mechanical abrasion was proved by abrasion tests in accordance with ISO 15 184 (corresponding to pencil hardness H 7) and examinations of friction resistance in accordance with AKLV 112.


Digital printing covered with a protective lacquer must only be cleaned using liquid pH-neutral cleaning agents (pH-value >6.0 to <=8.0) or using clean water. Highly alkaline or highly acidic cleaning agents can attack and destroy the protective lacquer, and must therefore not be used. Cleaning agents with abrasive components and scouring cleaning sponges or brushes may also damage the surface of the lacquer and must not be used. Solid particles of dirt on the surface of the lacquer must first be removed with a clean, soft cloth. After cleaning, the surfaces must be rubbed dry with a soft cloth in order to prevent calcium deposits.


No high-pressure cleaning systems of any kind whatsoever may be used for cleaning, since these damage the surface of the lacquer. The same applies for all cleaning systems that attack the lacquer surface mechanically, such as steel wool, knife blades or the like. Damaged areas of the protective lacquer coating must not be brought into contact with water or other liquids.


LACQUERED SURFACES

The same cleaning instructions apply for surfaces that have only been lacquered as for digital printing coated with protective lacquer.


If the above-mentioned cleaning instructions are followed, the quality of the OKACOLOR glass will be maintained for many years. OKALUX GmbH can accept no liability for the incorrect use of cleaning agents.


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Ceramic Screen & Enammelled Glass

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1. OKALUX insulating glass products with ceramic screen printing

The colour effect may differ depending on the type of glass and whether it is viewed from the back or the front. In critical cases, we recommend inspecting beforehand specifying the application conditions.


If the glazed surfaces are made up of more than one pane of glass joined together, only glass panes of the same thickness should be used in order to minimise colour differences caused by the natural colour (green tint) of the glass, particularly when there are large areas of screen-printing. As an alternative, we recommend using white glass to reduce this effect.


Protective coatings against heat or sunlight can lead to colour changes when used in combination with screen-printed panes.


If a heat and solar protection coating is applied to the ceramic screen print, the emissivity usually increases. This may result in the U-value for the insulating glass increasing by approx. 0,2 - 0,5 W/m²K. The U-value can only be determined by measurement.


2. OKALUX products with enamelled glass (e.g. parapet panes)

Because the colour effect may vary for different glass thicknesses, only enamelled glass panes of the same thickness should be used in the facade.


When ordering, it must be stated if the product is to be used without cover strips (structured glazing), because of way the edge is processed.


Enamelled glass should be used in front of an obscured, uniformly coloured dark background. Without a dark background, parapet glass panes can appear blurred and cloudy. In insulation construction, when enamelling is planned at Positions 3 or 4, the air gap should be reduced to 8 mm because of the strong heating effect in insulating glass.


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Screen Printing

Status: 1303

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Please observe the following information aimed at protecting you and your customers from damage and so as not to endanger any claims for compensation and warranty claims. The following information is designed to draw your attention to specific details which are often overlooked, but are important, and therefore must be considered. As such recommendations are of a general nature, and not aimed at each specific case, they do not lay claim to completeness. All valid laws, directives, standards and recognised technological regulations must also be observed. Please refer to the separate enclosures for product-specific information. Please contact us if there is any doubt. Non-compliance with this information will endanger any claims for compensation or warranty claims.


OKALUX insulating glass products with ceramic screen printing

The colour effect may differ depending on the type of glass and whether it is viewed from the back or the front. In critical cases, we recommend inspecting beforehand specifying the application conditions. If the glazed surfaces are made up of more than one pane of glass joined together, only glass panes of the same thickness should be used in order to minimise colour differences caused by the natural colour (green tint) of the glass, particularly when there are large areas of screen-printing. As an alternative, we recommend using white glass to reduce this effect.


Protective coatings against heat or sunlight can lead to colour changes when used in combination with screen-printed panes.


If a heat and solar protection coating is applied to the ceramic screen print, the emissive usually increases. This may result in the U-value for the insulating glass increasing by approx. 0,2 - 0,5 W/m²K. The U-value can only be determined by measurement.


OKALUX products with enamelled glass (e.g. parapet panes)

Because the colour effect may vary for different glass thicknesses, only enamelled glass panes of the same thickness should be used in the facade.


When ordering, it must be stated if the product is to be used without cover strips (structured glazing), because of way the edge is processed.


Enamelled glass should be used in front of an obscured, uniformly coloured dark background. Without a dark background, parapet glass panes can appear blurred and cloudy.


In insulation construction, when enamelling is planned at Positions 3 or 4, the air gap should be reduced to 8 mm because of the strong heating effect in insulating glass.


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OKAWOOD Insulating Glass with Wooden Grid Tolerances

Guideline for Assessing Visual Quality

Status: 1310

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Please observe the following information aimed at protecting you and your customers from damage and so as not to endanger any claims for compensation and warranty claims. The following information is designed to draw your attention to specific details which are often overlooked, but are important, and therefore must be considered. As such recommendations are of a general nature, and not aimed at each specific case, they do not lay claim to completeness. All valid laws, directives, standards and recognised technological regulations must also be observed. Please refer to the separate enclosures for product-specific information. Please contact us if there is any doubt. Non-compliance with this information will endanger any claims for compensation or warranty claims.


General

The product "OKAWOOD Insulating Glass with Wooden Grid" is an insulating glass with a wooden grid of roughsawn, filigree wood rods integrated in the cavity of an insulating glass unit. OKALUX uses only high-quality Exotic wood or Domestic wood. Both are genuine wood - not a replica. Being a natural product, there are bound to be deviations in color, brightness and position of the wood louvers. Similarly it is possible for resin to escape from the wood. The timber used comes from sustainable managed forests.


Before use, the wooden grid is subjected to a drying process which was specially developed for this product. Each insert then undergoes a 100% check and damaged or severely deformed rods are replaced. Nevertheless, timber is a material which "works" more than for example metal. For this reason we have drawn up the following list of criteria for assessing the visual quality of this product. The criteria are based on generally accepted technical rules from comparable applications. As an alternative we recommend using OKASOLAR insulating glass with integral sun control louvers made of metal.


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Maximum Heat Treated Glass Sizes for Different Thickness

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When specifying the glass thickness for a project it is important to consider the maximum sizes that different glass thicknesses are available in when they are heat treated. With many OKALUX products it is a requirement that the glasses are heat treated to avoid the risk of thermal shock occurring. This is also required where glass is back painted or subject to shading This means that while, for example, a 5mm thick glass may meet the loading requirements , should the panel size be in excess of 2100mm x 3500mm the next available thickness should be selected. In the case of laminated glass the maximum available size of the individual panes of the laminate will dictate the overall thickness.

The tables below give a general guide to availability in size and thickness


Sonderglaser = Special glass such as Satinato, Activ, Body Tinted (Grey, Bronze, Blue,).


Toughened Glass

Maximales Seitenverhältnis
ESG 4mm 1500mm*2500mm 1:10
ESG 4mm Sondergläser* 1200mm*2200mm 1:6
ESG 5mm 2100mm*3500mm 1:10
ESG 5mm Sondergläser* 2000mm*3000mm 1:6
ESG 6mm 2700mm*5000mm 1:10
ESG 6mm Sondergläser* 2400mm*4000mm 1:10
ESG 8mm 2900mm*5500mm 1:10
ESG 8mm Sondergläser* 2600mm*5100mm 1:10
ESG 10mm 3210mm*9000mm 1:10
ESG 10mm Sondergläser* 3000mm*5400mm 1:10
ESG 12mm 3210mm*9000mm 1:10
ESG 12mm Sondergläser* 3000mm*6000mm 1:10
ESG 15mm 3210mm*7000mm 1:10
ESG 19mm 3210mm*7000mm 1:10

Heat Strengthened Glass

Maximales Seitenverhältnis
TVG 4mm 1500mm*2500mm 1:10
TVG 4mm Sondergläser* 1200mm*2200mm 1:6
TVG 5mm 2100mm*3500mm 1:10
TVG 5mm Sondergläser* 2000mm*3000mm 1:6
TVG 6mm 2700mm*5000mm 1:10
TVG 6mm Sondergläser* 2400mm*4000mm 1:10
TVG 8mm 2900mm*5500mm 1:10
TVG 8mm Sondergläser* 2600mm*5100mm 1:10
TVG 10mm 3210mm*9000mm 1:10
TVG 10mm Sondergläser* 3000mm*5400mm 1:10
TVG 12mm 3210mm*9000mm 1:10
TVG 12mm Sondergläser* 3000mm*6000mm 1:10

Laminated Toughened Glass

Maximales Seitenverhältnis
VSG 8mm,2*ESG 4mm, 0,76 PVB-Folie 1500mm*2500mm 1:10
VSG 8mm,2*ESG 4mm, 0,76 PVB-Folie Sondergläser* 1200mm*2200mm 1:6
VSG 10mm,2*ESG 5mm, 0,76 PVB-Folie 2100mm*3500mm 1:10
VSG 10mm,2*ESG 5mm, 0,76 PVB-Folie Sondergläser* 2000mm*3000mm 1:6
VSG 12mm,2*ESG 6mm, 0,76 PVB-Folie 2700mm*5000mm 1:10
VSG 12mm,2*ESG 6mm, 0,76 PVB-Folie Sondergläser* 2400mm*4000mm 1:10
VSG 16mm,2*ESG 8mm, 0,76 PVB-Folie 2900mm*5500mm 1:10
VSG 16mm,2*ESG 8mm, 0,76 PVB-Folie Sondergläser* 2600mm*5100mm 1:10
VSG 20mm,2*ESG 10mm, 1,52 PVB-Folie 3210mm*9000mm 1:10
VSG 20mm,2*ESG 10mm, 1,52 PVB-Folie Sondergläser* 3000mm*5400mm 1:10
VSG 24mm,2*ESG 12mm, 1,52 PVB-Folie 3210mm*9000mm 1:10
VSG 24mm,2*ESG 12mm, 1,52 PVB-Folie Sondergläser* 3000mm*6000mm 1:10
VSG 30mm,2*ESG 15mm, 1,52 PVB-Folie 3210mm*7000mm 1:10
VSG 38mm,2*ESG 19mm, 1,52 PVB-Folie 3210mm*7000mm 1:10

Laminated Toughened Glass

Maximales Seitenverhältnis
VSG 8mm,2*TVG 4mm, 0,76 PVB-Folie 1500mm*2500mm 1:10
VSG 8mm,2*TVG 4mm, 0,76 PVB-Folie Sondergläser* 1200mm*2200mm 1:6
VSG 10mm,2*TVG 5mm, 0,76 PVB-Folie 2100mm*3500mm 1:10
VSG 10mm,2*TVG 5mm, 0,76 PVB-Folie Sondergläser* 2000mm*3000mm 1:6
VSG 12mm,2*TVG 6mm, 0,76 PVB-Folie 2700mm*5000mm 1:10
VSG 12mm,2*TVG 6mm, 0,76 PVB-Folie Sondergläser* 2400mm*4000mm 1:10
VSG 16mm,2*TVG 8mm, 0,76 PVB-Folie 2900mm*5500mm 1:10
VSG 16mm,2*TVG 8mm, 0,76 PVB-Folie Sondergläser* 2600mm*5100mm 1:10
VSG 20mm,2*TVG 10mm, 1,52 PVB-Folie 3210mm*9000mm 1:10
VSG 20mm,2*TVG 10mm, 1,52 PVB-Folie Sondergläser* 3000mm*5400mm 1:10
VSG 24mm,2*TVG 12mm, 1,52 PVB-Folie 3210mm*9000mm 1:10
VSG 24mm,2*TVG 12mm, 1,52 PVB-Folie Sondergläser* 3000mm*6000mm 1:10

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The Heat Soak Test

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Please observe the following information aimed at protecting you and your customers from damage and so as not to endanger any claims for compensation and warranty claims. The following information is designed to draw your attention to specific details which are often overlooked, but are important, and therefore must be considered. As such recommendations are of a general nature, and not aimed at each specific case, they do not lay claim to completeness. All valid laws, directives, standards and recognised technological regulations must also be observed. Please refer to the separate enclosures for product-specific information. Please contact us if there is any doubt. Non-compliance with this information will endanger any claims for compensation or warranty claims.


The Construction Products List 2002 / 1, which has been in force since 14th August 2002 (Dibt Special Edition No. 26, 31st July 2002, ISSN 1438-7778), specifies the following rules for the Heat Soak Test:


1. The Heat Soak Test should be fully documented and performed in a calibrated furnace.


2. The retention time should be 4 hours at a defined temperature on the glass sheets.


3. The Heat Soak Test should be monitored and accepted by a recognised certification centre.


Our ESG supplier holds the certificate of agreement for heat-soaked, single-pane safety glass in accordance with the regulations contained in the Construction Products List A, Part 1 and performs the test in accordance with the Construction Products List.


For countries outside Europe, the regulations are different. In this case, from March 2007 heat-soaked, single-pane safety glass has to be manufactured using the Heat Soak Test according to EN 14179. For this reason, it is important that you know the place of destination for the glass and tell us the name of the desired product.


Where there is a different requirement on the Heat Soak Test on an export order, we must be notified at the time of enquiry.


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Structural Glazing / Edge Deletion of Insulating Glass

Status: 1303

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Please observe the following information aimed at protecting you and your customers from damage and so as not to endanger any claims for compensation and warranty claims. The following information is designed to draw your attention to specific details which are often overlooked, but are important, and therefore must be considered. As such recommendations are of a general nature, and not aimed at each specific case, they do not lay claim to completeness. All valid laws, directives, standards and recognised technological regulations must also be observed. Please refer to the separate enclosures for product-specific information. Please contact us if there is any doubt. Non-compliance with this information will endanger any claims for compensation or warranty claims.


Edge Deletion

Modern insulating glass manufactured in accordance with DIN EN 1279 typically comes with a functional coating. Such heat insulating or solar protection coatings are implemented primarily as soft coatings using the magnetron sputtering process. Metal-coated glass surfaces can have different adhesion properties, which is why we recommend that our customers generally order glass products that are not coated at the sealant. These areas can be masked off prior to coating or decoated mechanically before the glass is further processed.


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Maintenance notes for SIGNAPUR® - glass sealing

Status: 1303

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Please observe the following information aimed at protecting you and your customers from damage and so as not to endanger any claims for compensation and warranty claims. The following information is designed to draw your attention to specific details which are often overlooked, but are important, and therefore must be considered. As such recommendations are of a general nature, and not aimed at each specific case, they do not lay claim to completeness. All valid laws, directives, standards and recognised technological regulations must also be observed. Please refer to the separate enclosures for product-specific information. Please contact us if there is any doubt. Non-compliance with this information will endanger any claims for compensation or warranty claims.


Avoid the application of:


Abrasive media i. e.

> abrasives , polishing agents

> mechanical treatment with blades, steel wool

These media act like sand paper and remove the sealing.


Soap containing cleaning agents i. e.

> dishwashing detergents, soapsuds

Residuals of these media on the glass may influence the hydrophobic effect negatively.


So called EASY TO CLEAN cleaning agents

> media with hydrophobic acting substances, which promise a pearl effect

Such media cover the SIGNAPUR® glass sealing, may influence the sealing negatively (i. e. building up of cords) and do not result in an observable additional benefit.


Please apply the following media to clean glasses with SIGNAPUR® sealing:


Commercially available window and glass cleaning agents i. e.

> alcoholic cleaning agents, spirituous cleaning agents

> spirituous water, normal tap water


In most cases soft cleaning agents are completely sufficient to clean the glass. Aggressive and mostly expensive media are not necessary. Respecting this you do something to conserve the environment and additionally you save your money.


Following the above maintenance notes you will enjoy the advantages and benefits of your SIGNAPUR® - coated glass for a long time.


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