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
Additional Information
Technical Specification
  • Brand : Unbranded
  • Product Length : 15 m
  • Product Type : Protect A1 Roofing Underlay
  • Product Width : 1 m
  • Pack Size : 1
  • Manufacturer Guarantee : 1 Year Guarantee
  • Pieces in Pack/Case : 1
Product Contents
Delivery & Returns


Standard delivery: €15

Free delivery on all orders over €70.00

Click here to see information on our delivery charges and times



Hopefully you won't need to return an item, however, if you do, it is our aim to make this as simple as possible. By following the guidance below you can help us to help you when a product is not what you expected, or is faulty. Your statutory rights are not affected by this guidance.


Click here to see information on returns and cancellation

€20.45 Incl. 20% VAT

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Protect A1 Roofing Underlay 1 x 15m is rated 4.6 out of 5 by 52.
Rated 5 out of 5 by from Great economical choice Strong, durable, waterproof and easy to lay. Great economical choice.
Date published: 2017-07-26
Rated 5 out of 5 by from Good value, fast delivert Good value, fast delivery
Date published: 2017-06-30
Rated 5 out of 5 by from Easy / clean to use Only just installed this, so can't vouch for reliability/performance yet (so have given it 5 sars, will amend if I have any problems). Nice clean, light weight and very easy to use, now I've used it I'm disappointed that I didn't have it for the last shed I built, but retro fitting would be too difficult.
Date published: 2016-12-03
Rated 5 out of 5 by from RH Property Maintenance Great product and sensibly priced. Bought in store and recieved great friendly costomer service. I highly recommend this product. Value for money! I also highly recommend Screwfix Many Thanks Ryan of RH Property Maintenance & Garden Service
Date published: 2016-11-05
Rated 5 out of 5 by from Heavier than I Expected Purchased a similar product from the other well know retailer, needed another short roll to finish nipped to screwfix bought 15 mtr roll and very surprised by the thickness over one and half times thicker, excellent value.
Date published: 2016-10-20
Rated 5 out of 5 by from roofing felt excellent product bought from screwfix as ususal. cant be beaten on price and good quality products
Date published: 2016-10-10
Rated 5 out of 5 by from roofing felt much easier to use than bitumen felt did the whole roof in half the time.
Date published: 2016-10-07
Rated 5 out of 5 by from Roofing underlay Excellent value for money it is tough and hard to tear, which gives you confidence in the product. Has an overlap mark, which makes it easier to use and comes in two roll lengths as well.
Date published: 2016-09-10
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