Proctor Air Permeable Breather Membrane 1m x 50m BBA Approved

The Proctor Air 1m x 50m is a high-performance, air-permeable roofing underlay designed to "supercharge" moisture escape in pitched roofs. Engineered by the A. Proctor Group, this membrane features a unique meltblown core that allows natural air movement, making the formation of condensation virtually impossible—even in complex, non-ventilated roof designs. Advanced Condensation Control: Unlike standard breather membranes, Proctor Air is both air and vapour permeable. This dual-action approach allows it to handle high moisture levels during the building's "drying out" per Cost-Efficient Installation: When used in non-ventilated cold pitched roofs, Proctor Air often negates the need for a Vapour Control Layer (VCL) and secondary ridge/eaves venting. Weather Resilience: Rated W1 for water resistance, it features a hydrophobic additive and can provide temporary weather protection for up to 3 months during construction. Fully Compliant: Third-party tested for wind uplift resistance, it complies with BS 5534 for all UK wind zones without the need for additional tape in zones 1-4. Solar Ready: Fully compatible with integrated Solar PV assemblies, as noted in its latest BBA certification. More uniform airflow than vents No VCL required Compatible with PV Assemblies EPD Certified 15 year warranty