For applications where increased strength and resistance to mechanical damage is required, FILON offers two grades of reinforced rooflights:
FILON DR (double reinforced) rooflights
FILON DR rooflights are manufactured from polyester resins and glassfibre, with an additional reinforced woven Glass layer compared with conventional GRP rooflights. They have been assessed in accordance with ACR(M)001-2011 ‘Test for Fragility of roofing assemblies. Under this classification, they are rated Class B when used in a Single skin application or forming part of a multi-layer assembly such as FAIRs and site assembled insulating rooflights.