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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


4.85 5 20

Was £39.99

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Protect A1 Roofing Underlay 1 x 45m 4.8 5 20 20
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
Very durable and easy to use Used this as underlay on a pitched roof and it was left exposed for about 2mths in the worst part of winter and it gets really windy where I am. Even after this it didn't let a drop of water in and shows no signs of ripping or tearing , even on the loose flaps exposed to the wind. 12 May 2015
Roofing underlay I am constructing an all weather tree house for our three amazing Foster children so needed quality roofing underlay to facilitate over night camp outs. Brilliant product will be back for more if the children decided their tree house needs an extension!!!! 23 Apr 2015
  • 2015-06-30T14:05:37.840-05:00
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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