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Protect A1 Roofing Underlay 1 x 45m (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

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£31.99INC VAT

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Rated 4.7 out of 5 by 56 reviewers.
  • 2016-07-24 T12:36:48.019-05:00
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Rated 5 out of 5 by roof felt bought this to put on the roof of my wood shed before I put a steel sheet over the top to stop any drips of water going on to the wood in the frost. 7 Jul 2016
Rated 5 out of 5 by What a great find! Building a workshop with corrugated roof and I wanted to lay a barrier down. I could tell the quality of the A1 Protect. water resistant, strong and easy to lay. Finished laying at 9 pm, ready to do corrugated steel in morning. Heavy rain storms during night and it withstood the test. Definitely buy again. 5 Jul 2016
Rated 3 out of 5 by Excellent roof sheet Good quality easy to use and does the job What else can you ask for 17 May 2016
Rated 4 out of 5 by Good value Used as an underlay for a shingle roof on my new log cabin. Quick and easy to fix and made the cabin watertight immediately. 15 Apr 2016
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7 Questions  6 Answers

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I am re-roofing a flat roof (very little slope) and want to use a breathable membrane beneath the cap-sheet, but need to know how to fix it. Thanks.
17 Jul 2016
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Brum, Kings Heath.
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Answer: 
Hello Shed1Brum,

You could possibly use some Double Sided Membrane Tape.

Here's a link: http://www.screwfix.com/p/double-sided-membrane-tape-50-x-10m/23552?_requestid=176978

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19 Jul 2016
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Yeovil
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6 Jul 2016
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Cornwall
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, Plumbing/Heating Engineer
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Answer: 
Hi Deanobreeze,
Our supplier has advised 'Yes the A1 product is suitable for all wind uplift zones'.
Thanks for using Screwfix Q&A.
7 Jul 2016
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Yeovil
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1 Answer

Is it breathable?

I'm building a shed and wanting to put some membrane onto the frame before boarding it
28 May 2016
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Anonymous,
Middlesbrough
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Answer: 
Hello Anonymous,

I can confirm that this product is not breathable.

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31 May 2016
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Yeovil
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2 May 2016
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Gwynedd
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Answer: 
Hi Daz,

Unfortunately we wouldn't know whether it is able to be used with shingle roofing or not, however if you contact our supplier Glidevale Ltd on 0161 9055700 they may be able to assist you further. We'd also recommend contacting a suitably qualified tradesperson for advice.

Hope this helps.
6 May 2016
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Yeovil
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29 Mar 2016
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Anonymous,
Whitburn
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Answer: 
Hi,

This product will not be suitable as it is made of polypropylene and as such will shrink and melt if in contact with heat.

thank you for using Q and A.
28 Apr 2016
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Yeovil
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  • 2016-07-23 T10:33:12.172-05:00
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Specification
Pack Size 1
Pieces in Pack/Case 1
Product Length 45 m
Product Type Protect A1 Roofing Underlay
Product Width 1 m
Total Product Weight 6.901 kg