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

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. Being both air open & vapour permeable further minimises the risk of condensation forming, particularly during the drying out period of a building.  Permo® air is a strong 3 layer product consisting of UV stabilised PP fleece and a high performance Meltblown layer