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Protect A1 Roofing Underlay 1 x 15m

Product Code: 31617

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


4.4 5 10

QtyPrice per item
1 - 11 £17.99
12 + £16.99

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Protect A1 Roofing Underlay 1 x 15m 4.4 5 10 10
Lightweight Felting! Easy to carry this roll of under roof felting unlike other makes. Flexible to use and not too large a roll to buy for a small remedial job required over Christmas. Havent tested performance or reliability as yet - only went up a few days ago but master builder friend like the product. 1 Jan 2015
Roofing membrane Roofing underlay was strong and easy to lay. Price was very good 19 Nov 2014
Roofing Underlay A1 I was using this behind cladding on a dormer construction. Having priced it up on the internet, this was the best value deal. The product itself was easy to install and handle. Easy cutting but durable enough to withstand heavy handling. Appears good construction and great waterproofing quality. Excellent click & collect service, waiting for me when I arrived. 27 Jun 2014
Protect roof covering Very disappointed with the product,advertised as 15m on the product and i needed 6 pieces at 2.4m which is 14.4m.Cut each 2.4 piece and fixed but on the last piece i only had 2.2m left not enought to finish the job,I should have had 600mm over which means the roll was only 14.2m long. Please get measurements right! 11 Feb 2014
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Pack Size 1
Product Length 15 m
Product Type Protect A1 Roofing Underlay
Product Width 1 m
Total Product Weight 2.295 kg