0500 41 41 41
Cookie Reports - Screwfix Cookie Policy


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



Was £17.99

Save £1.80 (10%)

QtyPrice per item
1 - 2 £16.19
3 + £14.55

Add to saved list

Available for deliveryNext Day Delivery
Available for collection from store Store Collection Check stock in your store
Page 1 of 4
Page 1 of 4
Protect A1 Roofing Underlay 1 x 15m 4.4 5 19 19
Good but short Great product at a great price. The only down side was that I needed 15 meters and it measured 14m 80cm. 22 Jun 2015
felt Good product easy to use and cut and would use again. the only minor negative is that its very light and on a windy day as I had it flaps around a bit but I would buy this again. 30 May 2015
Good value roofing material Easy to handle without tearing. Easy to cut and seems robust. Fixes easily with clout nails and stiff enough to look good without wrinkles or sagging without spending too much time on alignment. Recommended. 9 May 2015
Roof fix I bought one pack of this underlay as a trial to repair rips in the existing felt. It was so easy to work with that I decided to buy more packs and do the whole roof. An excellent product. 21 Apr 2015
  • 2015-09-02T18:07:06.940-05:00
  • bvseo_lps, prod_bvrr, vn_prr_5.6
  • cp-1, bvpage1
  • co_hasreviews, tv_19, tr_19
  • loc_en_US, sid_31617, prod, sort_default
Page : 2 next>
1 Question  0 Answers

Screwfix Q&A

Ask your questions. Share your answers.

« Back
Is this underlay suitable for putting under Valley Troughs 49205?
24 Aug 2015
Customer avatar
Read all my Q&A
0out of 0found this question helpful.
Was this helpful?Yes0No0
1 of 1
  • 2015-09-02T18:04:24.240-05:00
  • bvseo_lps, prod_bvqa, vn_prr_5.6
  • cp-1, bvpage1
  • co_hasquestions
  • loc_en_US, sid_31617, prod, sort_default
1 of 1


Pack Size 1
Product Length 15 m
Product Type Protect A1 Roofing Underlay
Product Width 1 m
Total Product Weight 2.295 kg