Klober Permo Air Open Underlay Roofing Breather Felt - 50m x 1m Roll

Permo® air is the most breathable air open low resistance underlay on the market. It is the ideal solution where there is a high risk of condensation forming in the roof space.

Features

• Air open & vapour permeable.
• Over 13% more breathable than any other ‘air open’ underlay on the market.
• Lowest vapour resistance of all breathable membranes.
• Being both air open & vapour permeable further minimises the risk of condensation forming, particularly during the drying out period of a building.
• No ventilation required.
• Hydrophobically treated.
• Type LR underlay.
• Strong 3 layer material.
• 15 year guarantee.
• Recyclable.
• UV stable for 4 months.
• Batten spacing 350mm.
• Superior nail tear strength.
• Suitable Cold and warm roof applications.

Please note no ventilation is required with this product.