Επιλογή Υαλοπίνακα για Παράθυρα Στέγης Velux

Strength of glass When placed in the sloped roof, roof windows are directly exposed to all kinds of weather. Therefore the strength and quality has to be optimal. This also applies to the roof window glazing. VELUX has a range of insulating glass units to suit all your requirements. We recommend that you consider using insulating glass units with laminated glass on the inside for windows placed above areas where people sleep, play or work.

VELUX Danmark A/S Ådalsvej 99 2970 Hørsholm Telefon 45 16 45 16 Telefax 45 16 45 55 velux-dk@velux.com www.velux.dk

Toughened safety glass For places where there is a demand for increased resistance to eg. hail, wind and snow loads. When toughened glass breaks it shatters in thousands small pieces, thereby the risk for personal injury is reduced.

Laminated safety glass For places with high demand for personal safety. Laminated glass is a combination of two sheets of glass with one or more interlayers of plastic (PVB). In case of breakage, the interlayer is designed to hold the fragments together.

Coating Low-E coating Low-E coating improves heat insulation.

It is standard for all our insulating glass units.

Easy-to-clean coating Minimizes cleaning of the outer glass pane. Gives you a clearer view in case of rain or dew on the outer glass pane.

VAS 455175-0507 © 2007 VELUX Group. ® VELUX, THE VELUX LOGO, INTEGRA AND io-homecontrol are registred trademarks used under license by THE velUX Group.

Float glass For places where there is low demand for personal safety. When float glass breaks, sharp glass parts might fall down.

Choose the right glass for your roof window

Insulating glass unit construction

Basic

Insulating glass unit --54

Advantages

Technical values

- Heat insulation - reduction of outside noise

- Inner float glass with coating for extra heat insulation - Cavity with special gas - outer float glass

Insulating glass unit --59

Standard

- Inner float glass with coating for extra heat insulation - Cavity with special gas - outer toughened glass

- Increased resistance to hail, wind and snow loads - Good heat insulation - Good reduction of outside noise

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--54

--59

--73

--60

--57

Uw - Thermal 1) transmittance - window [W/(m2k)] EN ISo 12567-2

1.5

1.4 1.5 (GDL) 1.5 (GZL)

1.4 1.5 (GDL)

1.3 1.4 (GDL)

1.5 1.6 (GDL)

Ug - Thermal transmittance – glass unit [W/(m2k)] EN 673

2)

1.1

1.1

1.1

1.0

1.3

g - Total solar energy transmittance EN 410

3) 0.60

0.60

0.54

0.29

0.26

τv - Light transmittance EN 410

4) 0.77

0.77

0.77

0.62

0.43

τuv - Ultraviolet transmittance EN 410

5) 0.30

0.30

0.05

0.05

0.05

rw - Sound insulation - window [dB] EN ISo 717-1

6)

32

35

37

36

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29

Sun protection Sound insulation

Insulating glass unit --73

Comfort

- Inner laminated float glass - Cavity with special gas - outer toughened glass with coating for extra heat insulation and easy to clean coating

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Energy saving

Increased resistance to hail, wind and snow loads Personal safety (no fragments inside in case of breakage) Good heat insulation Protecting furniture from fast fading Clearer view and reduced need for outside cleaning High reduction of outside noise

Insulating glass unit --60 - Inner laminated float glass - Cavity with special gas - outer toughened glass with coating for extra heat insulation, extra sun protection and easy to clean coating

- Increased resistance to hail, wind and snow loads - Personal safety (no fragments inside in case of breakage) - Extra heat insulation - Protecting furniture from fast fading - Clearer view and reduced need for outside cleaning - Extra high reduction of outside noise - Better indoor climate during the summer period

Toughened glass outside

- Inner laminated float glass - Cavity with special gas - outer toughened glass with coating for extra heat insulation, extra sun protection and easy to clean coating

- Increased resistance to hail, wind and snow loads - Personal safety (no fragments inside in case of breakage) - Heat insulation - Protecting furniture from fast fading - Clearer view and reduced need for outside cleaning - Extra high reduction of outside noise - rain noise reduction - Better indoor climate during the summer period

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rain noise reduction

Super = *** Medium = ** Standard = *

Insulating glass units: The lower the Uw, the better the heat insulation of the window The lower the Ug , the better the heat insulation of the insulating glass unit 3) The higher the g, the more passive solar heat will be transmitted into the room 4) The higher the τ , the more light enters into the room v 5) The lower the τ , the better ultraviolet light protection uv 6) The higher the r , the better the sound insulation of the window w 2)

Insulating glass unit --57

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Easy to clean coating

1)

Multi function

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Laminated glass inside

Low-E coating

Multi function

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