The Cromar Vent3 Classic is a high-performance breather membrane designed for universal application on roofs and walls. Constructed from high tensile spun bonded polypropylene layers surrounding a micro-porous polypropylene film, it offers exceptional moisture vapour permeability.

This ensures that water vapour can escape from within the roof structure while providing a robust barrier against wind-driven rain, snow, and dust, which may penetrate the primary roof waterproofing. Its superior tensile and tear strength make it ideal for pitched roof applications, ensuring long-term durability and protection. With a light grey upper surface marked with preprinted lines and a white underside, the Vent3 Classic is both easy to handle and install. It complies with rigorous standards, including BBA certification and compliance with BS 5534:2014+A2:2018.

• Size: 1.5m x 50m roll, 115gsm weight
• Designed for roofs and walls, pitched roof use
• Triple layer breather membrane for moisture control
• High vapour permeability with waterproof properties
• Made from high tensile spun bonded polypropylene
• Excellent tensile and tear strength for durability
• UV stable for up to 3 months exposure
• Compliant with BS 5534:2014+A2:2018 standards