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| Roof glazing  As with VITRAL's premier system (the VRS system) the A74 rooflights do not have a carrier frame as with patent glazing or curtain walling. This means every panel is capable of opening without the need for extra framing, so maintaining low U-values, controlling costs and maximising the amount of daylight through the system. Why aluminium? This material is durable, flexible, stylish and environmentally friendly. It is also available in wide variety of colours. Benefits: U-value - A74 U-value of 1.5 W/m²K; Materials – High quality aluminium construction that provides long term life expectancy and will not deteriorate; Glass - A74 has low energy double insulated glass units with argon fill and "warm edge" spacer profile, outside with toughened safety glass and inside with laminated safety glass; Colour - Anodised aluminium or ppc to any RAL; Ventilation - The A74 does not have a carrier frame as with patent glazing or curtain walling; This means every panel is capable of opening without the need for extra framing; Profile dimensions: height - 74 mm and width - 50 mm; Panel dimensions: height - 250-2900 mm, width - 250-1200 mm and panel area - 2 m²; Certifications - A74 roof glazing system is CE-marked (EN14351-1); Full Life Safety Fire Ventilation (EN12101-2): a standard feature that VITRAL adopts is ensuring its system comply with EN12101-2:2003 legislation for smoke ventilation.write your comments about the article :: © 2012 Construction News :: home page |