Since 1992


Permavent is a UK-based roofing product manufacturer. They make products ranging from breather membranes to easy roof systems.

All the products which Permavent manufacture are made in Britain, using the latest technologies and designs, and are fully tested by BRE (Building Research Establishment).

What are breather membranes?

Breather membranes, such as the ones that we sell, are installed to the outer side of the insulation. You can install a breather membrane over or under counter-battens for pitched roofs.

Breather membranes allow water vapour to exit from the interior of a building without the need for ventilation. Additionally, breather membranes also excel at repelling any water and preventing rainwater ingress.

Without a breather membrane, there would be numerous structural issues caused by rain and condensation, including:

  • Rotten timber frames, joists, or rafters, leading to structural damage.
  • The insulation of the property being less effective because it’s absorbed moisture.
  • Mould forming where condensation has built up, which not only looks unsightly, but can be hazardous if it’s black mould.

When you install a breather membrane into your home, it’s good practice to seal the joints with tape. Sealing the joints with tape will prevent any air leakage and ensure maximum performance.

Benefits of using Permavent products

Whether you work in a trade, or are just doing DIY, you will get benefits out of using Permavent’s products. The benefits include:

  • Cost-effectiveness
  • Strong weather-proofing qualities
  • British Standard compliant
  • Resilient and durable materials
  • High quality materials
  • Low maintenance
  • Suitable for use in commercial or domestic properties
  • Can be used by trades workers or hobbyist DIYers
  • Easy to install
  • Tested by BRE

What Permavent products do we sell?

At BC Profiles, we sell a range of different Permavent products, the primary products we sell are the Leto breathable membranes.

The Leto breathable membranes are from Permavent’s latest roofing range. They allow the regulation of humidity and condensation in whatever property they’re installed in.

If you have any questions regarding any of our Permavent products, then please do not hesitate to contact the BC Profiles customer service team, where our team of experts will be happy to answer any questions you may have.

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