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The design of the roof should be considered in relation to its compatibility with the building as a whole
The ARC T-Barrier Pitched Roof is designed to provide a fire
Novia B1F meets the technical requirements of BS 1521 (Class B with reinforcement) for water-proof building papers
Designed for easy friction fitting between studs and joists
Meeting the highest BS 1521 Grade A1F standard
B1F Building Paper 1.25m x 50m (62.5m2 Roll) badge-freedelivery-brand-over-825 The design of the roofThis is a traditional, reinforced kraft paper bitumen bonded, building paper laminate used within the construction industry which meets the requirements of BS 1521, grade B1F (Class B with reinforcement). Unlike many other recent developments in building membranes (eg breathable roof underlays), BS 1521 does not give guidance on suitable use, and as such this product is a generic material, serving a wide range of end user defined applications. Novia
