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Protect A1 Roofing Underlay 1 x 45m

Product Code: 31795

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



Was £39.99

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Protect A1 Roofing Underlay 1 x 45m 4.9 5 22 22
Protect A1 Roofing Underlay 1 Bought this to do a small repair on my porch it was that easy to use I ended up doing the whole porch roof, A1 is the right name for this product, if it holds up as good as it was to use you will never hear any complaints from me.billm 9 Jul 2015
Good stuff! Bought as a temporary cover before I cover the roof of the garage with Cladco. Was going to use my breathable felt, but at a 1/3 of the cost this presents excellent value for money. I'm also going to try it as an alternative to breather felt for vertical slating. Would highly recommend this product. 4 Jul 2015
Cabin roof Bought this as an waterproof underlay to lay on a cabin roof prior to putting shingles on.it meant that I could take my time knowing the cabin was watertight also an extra layer of protection.does the job and was the best value by far.would use again 16 Jun 2015
No brainer The best product at the best price. All the local builders merchants could not come c;ose to this price. Easy to lay easy to cut. Really strong and most of all waterproof. Used it before and will use it again as I say a No Brainer 30 May 2015
  • 2015-07-30T15:26:20.400-05:00
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Pack Size 1
Product Length 45 m
Product Type Protect A1 Roofing Underlay
Product Width 1 m
Total Product Weight 6.901 kg