This material is a traditional, non-reinforced PE coated wet-strength kraft waterproof building paper. B2 paper meets the technical requirements of BS 1521 (Class B without reinforcement) for water-proof building papers. 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, used primarily in a wide range of end-user defined applications. However, some typical usage for B2 has naturally evolved over time including for example, temporary protection, concrete shuttering, floor screed break layers and as an external cladding render backing in timber frames. It is an excellent low-cost material with good grease and solvent resistance.
Key Features:
Black polythene and kraft paper laminate
Multi-use adaptable building product
Commonly used as temporary protection
