Our door units comprise of two PVCu skins pressed at three and a half tons per square meter to a core of E.H.D.N. Polystyrene, using adhesives, which complies with BS5750, and are resistant to both heat and moisture.
The result is a core material free of CFC's with a rigid fire retardant skin, which is proof against rotting, weathering and warping, so our doors retain their colour stability regardless of exposure to sunlight.
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