Klober Permo® Air Underlay Breather Felt

£165.37 to £225.40ex VAT
£198.44 to £270.48inc VAT
Estimated delivery: Please get in touch for more accurate delivery times
£165.37 to £225.40ex VAT
£198.44 to £270.48inc VAT


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Product Description

Permo® air

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. Available in 2 widths 1.5m x 50 and 1m x 50m


  • Suitable for cold and warm roof applications
  • Air open and vapour-permeable
  • Strong 3 layer material
  • Recyclable 
  • No ventilation required
  • Hydrophobically treated and UV stable for four months
  • Made to perform in extreme climate conditions
  • BBA Certified

Performance/Technical Data

Weight approx. 160g/m2
Resistance to water penetration EN 1928 W1
Water column, EN 20811 > 4,500 mm
Tensile strength longitudinal / transverse EN 12311-1       280N/40 cm 200N/40 cm
Nail tear strenght  longitudinal / transverse EN 12310-1     140N 130N


14 Day Money Back Guarantee

We are happy to accept returns, if they are returned within 14 days of being received, and providing item has not been used or opened and is in original condition.

An email MUST be sent before returning your item, a note must be enclosed with the returned item, stating the reason for the return and the name under which the item was purchased.

Faulty Items

All products are individually inspected before being dispatched, to ensure items are sent out in perfect condition. In the unlikely event that your item is faulty, please return it to us within 7 days of receipt in its original condition. Upon inspection, we will be happy to replace or repair where possible, or refund you in full if the item is found to be faulty.

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