The document is split into sections covering the changes regarding design responsibility, structural properties, minimum roof pitch with or without in plane rooflights, safety, insulation, durability, spacer systems, rooflight area and specification, fibre cement, air tightness, gutters and flashings.
The document is split into sections covering the changes regarding design responsibility, structural properties, minimum roof pitch with or without in plane rooflights, safety, insulation, durability, spacer systems, rooflight area and specification, fibre cement, air tightness, gutters and flashings. This guidance document has been written by members of the NFRC Sheeting and Cladding Technical Committee
This 16 page document provides an overview of changes following the 2025 revision of BS 6229 (Flat roofs with continuously supported flexible waterproof coverings).
