A new type of roofing underlay is now available from Permo Air. The material is air-open and vapour permeable, with a low resistance that protects against condensation that may normally form in the roofspace during the drying out period of a building; because the material is a breathable membrane no ventilation is required during the installation.

Very easy to install as each roll is lightweight and portable, therefore easy to lay down; it also has superior nail tear strength thanks to the strong 3 layer material. It’s hydrophobically treated to repel water, and also offers great UV protection for up to 3 months after installation on the roof before the roofing tiles are fitted into place.

Great for warm and cold roofing applications, so can easily be installed regardless of hot or cold weather conditions without any real problems.

When replacing this material it’s fully recyclable, so you don’t have too worry too much about it’s environmental impact either.