Cromar Vent 3 (135g) 1m x 50m Breathable Membrane (roofing felt alternative)

Vent 3 is a triple-layer, high-performance breather membrane crafted from high-tensile spun-bonded polypropylene layers encapsulating a microporous polypropylene film. Ideal for fully supported or unsupported roof systems with tiles, slates, or metal, its superior vapor permeability and waterproof properties, along with exceptional tensile strength and resistance to tearing and wind uplift, establish Vent 3 as the premier choice for ultimate breather membrane solutions. It performs equally well whether draped over rafters without support or laid directly over insulation.