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

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Est. Delivery: 2-3 Working Days
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£185.84 Incl. VAT
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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.


  • 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.


Width 1000mm


Permeability Air Open Roll Size 50m2

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

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