Klober Permo Air Breathable Felt

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1 Excl. VAT £275.75 Incl. VAT Excl. VAT
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Est. delivery: 1-2 Working Days

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Colour: Dark Blue

Coverage: 50m2

Number of Pieces per Carton/Pack: 1

Number of Pieces per Pallet: 20

Weight per Piece: 8 kg

Klober Permo Air Breathable Felt is the superior choice for homeowners needing an air-permeable underlay. 

Klober Permo Air is a brand of breathable roofing commonly used in construction to provide a protective layer between the roof covering and the building structure. It is designed to allow moisture vapour to escape from the roof space while preventing wind-driven rain or snow ingress.

Breathable roofing felt is made from a high-quality, non-woven polypropylene material with excellent breathability and water resistance. It typically comes in rolls easily installed on the roof deck before the final roof covering, such as tiles or shingles, is applied.

Features and Benefits of Klober Permo Air Breathable Felt:

  • Highest level of breathability - Klober breathable roofing felt offers tremendous value and superior performance, boasting up to 13% more airflow than other ‘air open’ underlays. 
  • Built-in protection - Enjoy up to a 15-year guarantee on breathable felt thanks to its hydrophobic treatment and excellent nail tear strength, meaning you can rest assured your roofs are secure all year round. 
  • Maximum efficiency for minimal fuss - No extra ventilation is required, making replacing easy with minimal disturbance or disruption. Get maximum breathability with no hassle! 
  • Ultimate comfort in all weathers - This advanced three-layer underlay system in Klober air breathable felt ensures condensation buildup stays low for cold and warm roof applications while achieving four months of UV stability.

Technical Data of Klober Permo Air Breathable Felt:


Dark Blue
Material Polyolefin
BBA Standard Applicable 07/4435
Roof type for BBA standard: Cold Non-Ventilated and Warm Non-Ventilated Pitch Roof Systems
Wind zones BS5534 2014 Annex A Zones 1-3
Fire Rating E
Dimensions and Weights: 1m; Length 50m
Coverage 50m2
Number of Pieces per Carton/Pack 1
Number of Pieces per Pallet 20
Weight per Piece 8 kg


Need help with your order? Our knowledgeable staff can help you out with it. For personalised help, speak to an expert at 0333 700 1111 or drop an email at web.sales@jjroofing.co.uk

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FREE DELIVERY on Duratech Pitched Roof Windows and Accessories on orders over £50 (Exclusions apply)

All other Delivery Charges are based on weight and location, please add products to your basket to calculate shipping.

A small amount of product lines from particular manufacturers listed below will incur a supplier delivery surcharge.

Next Day Delivery available on orders of stocked items if placed before 2pm

Deliveries will be made between 8am and 6pm. Delivery times apply to weekdays only.

Delivery of Windows to England, Wales, and the majority of Scotland:

Delivery of Windows to the Channel Islands, Scottish Highlands, Northern Ireland, Isle of Man

(postcodes IV, HS, KA27-28, KW, PA20-49, PA60-78, PH17-26, PH30-44, PH49-50, ZE, AB)

Basket Value Price (£)
0-£249 £20
Over £250 £50

It is with regret that we cannot offer a service to these areas for orders over 126kg but please call us on and we will attempt to organise a delivery to your custom if required.

Supplier Delivery Charges

Please note the following supplier delivery surcharges:

Ariel Plastics = £25.00

Britmet Tileform= £35.00

Lead Products(orders under 250kg) = £50.00

Marley Eternit roof tiles (orders under a pallet) = £75.00

Marley Eternit sheeting (exclusions apply) = £50.00

Redland = £100.00

Palram = £25.00

Please phone us on if you are unsure.