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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


4.7857 5 14

QtyPrice per item
1 - 11 £39.99
12 + £36.99

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Protect A1 Roofing Underlay 1 x 45m 4.8 5 14 14
Hundreds of uses This material was designed to replace bitumen roofing felt but it is so much more versatile than the old felt. It can protect a roof without any other covering for 6 months at least. I use a piece in the back of my estate car to protect the carpet and cover tools from view, it has been in there 5 years and still going strong. Excellent product would thoroughly recommend. 9 Dec 2014
Liner Easy to use. Although in high winds it can be a lot of fun! 20 Nov 2014
undertile felt Bought this for lining a shed. It cuts easily and seems robust. Would recommend it 2 Oct 2014
underlay excellent value. bought this to redo a large shed, and had enough to cover a smaller one. 27 Sep 2014
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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