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Secondary glazing systems supplier, Selectaglaze, has developed a product that has passed a 30 minute integrity fire test to BS EN 1364-1: 1997 and BSEN 1363-1: 1999.
Working in conjunction with Pilkington, the company says it has responded to a need for a secondary glazing system to provide fire protection in vulnerable areas, such as windows adjacent to fire escapes. The use of aluminium systems allows design continuity with other windows undergoing treatment.
Selectaglaze’s fire retardant Series 40 fixed light unit incorporates Pilkington’s Pyrodur glass with fire grade mastics and intumescent seals that expand and swell when hot to form a barrier against hot gasses. The unit successfully passed the fire test using the largest available piece of Pyrodur glass at temperatures which would normally melt the aluminium.