We stock & supply non breathable membranes, such as Chesterfelt Type 1F Bitumen Underslaters Felt which are completely waterproof and wind tight & can be used for all pitched roof constructions (tiled and slated), whether insulation is at ceiling joist level or rafter level. The products can also be used as a temporary roof covering for up to three months before the roof covering is laid.
Can’t find the non breathable roof underlay you’re looking for?
