Permavent Black Breather Membrane – 1m x 20m

Keep your roof protected. Keep your home dry.
When the rain falls and the wind howls, you need a breather membrane you can trust. The Permavent Black Breather Membrane (1m x 20m) gives you reliable, all-weather protection for any roofing project.

Moisture build-up ruins insulation, damages timber, and shortens a roof’s life. That’s why smart roofers choose Permavent—a trusted name in breathable membrane technology. This roll creates a waterproof but breathable barrier that stops rain from entering while letting trapped moisture escape. The result? A drier, longer-lasting roof.

Each 20m roll offers enough coverage for smaller roofing areas, repairs, or extensions. It’s lightweight, tough, and simple to handle. No need for special tools or complex instructions. Just roll it out, fix it in place, and move on with confidence.

Perfect for professional tradesmen and DIYers alike. Permavent Black Breather Membrane – 1m x 20m

• Waterproof yet breathable for year-round protection

• Works with both cold and warm roofs

• Ideal for repairs, small builds, and loft projects

• Made from durable, UV-resistant material

• Lightweight and easy to install

• Trusted by roofers across the UK

• Roll size: 1 metre x 20 metres