Description
Permo® air, a low resistance air-open underlay. It is the ideal solution where there is a high risk of condensation forming in the roofspace.
Product features & benefits :
- Lowest vapour resistance of all breathable membranes
- No ventilation required
- Available in 2 widths: 1.5 x 50m & 1m x 50m
- Hydrophobically treated
- Type LR underlay
- Strong 3 layer material
- Recyclable UV stable for 4 months
- Superior nail tear strength
- Area of application Suitable for: Cold and warm roof applications
- Being both air open & vapour permeable further minimises the risk of condensation forming, particularly during the drying out period of a building
- Batten spacing 350mm
