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Protect A1 Roofing Underlay 1 x 45m

Product Code: 31795

Rated 4.8 out of 5 by 10 reviewers.

Impermeable roofing underlay offering major benefits over traditional bitumen and reinforced plastic felts. Twin-ply construction of polypropylene non-woven spunbound layer and PP film. Unaffected by temperature change. Absorbent undersurface prevents condensation drip-off. Lightweight, easy to cut and install. Can be used in all pitched roof constructions, whether insulation is at ceiling joist or rafter level or as a temporary cover for up to 3 months. BRE and Wimlas certified.

  • Weight: 145g/m²
  • Non-Permeable ‘3rd Generation’ Underlay
  • Suitable for all Pitched Roof Constructions
  • Waterproof & Wind-Tight
  • View more information

From £36.99 (inc. 20% VAT)

4.8 5 10

Bulk savings

No. of items 1 - 11 12 +
Price per
£39.99 £36.99

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Rated 4 out of 5 by lightweight underlay this stuff is just like breathable underlay without being breathable, lets hope it lasts longer than breathable. 22 Aug 2014
Rated 5 out of 5 by Roofing underlay Excellent product for the money. Does the job for less. I don't use anything else now. 28 May 2014
Rated 5 out of 5 by tough, durable and esay to use purchased a few rolls of a1 roof felt to refelt my nans roof, it seems tough and durable but was easy to use and fit 7 Mar 2013
Rated 5 out of 5 by Up to the test of time I've used this felt several times and found it easy to use strong and durable, but what surprised me the most I used this felt about 8-9 years ago on a job where i just replaced the bottom course of felt three rows of batten etc the customer then phoned me a couple of weeks ago and asked me to do the entire roof as they had a bit of storm damage and a couple of ridge tiles had blown off etc but to y surprise when i stripped the roof the bottom course hadn't even began to deteriorate it was still like brand new which was a shock considering the old bitumen type felt use to start rotting in the gutters after about three years highly recommend to trade or diy 5 Dec 2012
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Pack Size 1
Product Length 45 m
Product Width 1 m
Total Product Weight 6.901 kg