DuPont Tyvek Supro Breather Membrane Felt Underlay - 50m x 1m Roll

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Product Description

DuPont Tyvek Supro is a durable, water resistant membrane that is reinforced with a laminated polypropylene nonwoven. This airtight, vapour-permeable membrane is extremely water-resistant, and can be used for all supported and unsupported pitched roofs.

Tyvek Supro does not need any soffit, tile or ridge ventilation, which can save time and money in the construction process. In addition to warm, hybrid and cold roofs, applications include Scottish sarking board systems, low-pitched metal roofs, and wall and floor applications.

Tyvek Supro water resistant membrane products are designed to withstand prolonged UV radiation and high temperatures, and come with full BBA and IAB approval for use in all pitched roof constructions.


Length: 50m.
Width: 1m.
Roll size: 50m2.
Roll weight: 8kg.
Mass per unit area: 145 gsm.
UV exposure: 4 months.
Water vapour transmission: 0.015.
Product thickness: 450 μm.
Composition: composite of high density polyethylene and polypropylene.


  • Extremely water-resistant.
  • Airtight.
  • Vapour-permeable.
  • Offers superior air and moisture management for commercial and residential buildings.
  • Durable resistance to prolonged UV radiation and high temperatures.
  • For all supported and unsupported pitched roof applications - warm, hybrid and cold roofs.
  • For scottish sarking board systems.
  • For low pitched metal roofs, wall and floor applications.
  • Fully BBA, IAB, and UKAS approved.

Product Documents


Width 1000mm Length 50m


Permeability Air Tight Roll Size 50m2

Frequently Bought Together


Questions & Answers


Can this be used on a stud wall in a garage conversion


For a stud wall you would be better off using housewrap, please find this linked below.


Is it OK to just staple the Tyvek to fasten it to a plywood roof . I'm a home DIYer and did not fancy buying any specialist tools if I good avoid it. Thanks


Yes stapling it would be ok.


Could this be used under Cedar roof shingles on a sloping shed roof?


Yes this would be a suitable breather membrane for under cedar shingles.


is the tyvek supro breather membrane availible in 2.5 m width?


Unfortunately not, just 1m and 1.5m wide.


Can this product be used as a felt underlay on a flat roof? We'll then have high-performance rubber resin coating on top of the felt.


No this is a breathable felt for use under tiles/slates, sounds like you are looking for a torch on felt you can find in the category below.


Do you need to tape the laps?


Yes it is advised to tape the laps, please see below for a link to the tapes to go with this membrane.


Hi is this ok too go under my welsh slate thanks


Yes this would be perfect for that application.

Product Reviews

5 / 5 9 reviews
T Knight
16th October 2020
Cedral weatherboarding job. I used this for my Dormer’s and the structure Guard for my gable ends. Personally use the supro for both unless your brick work is even and smooth. Both are great mind.
Mr M
24th September 2020
really really ok
Bev Smith
3rd September 2020
Easy to use. Does exactly what it is supposed to do.
23rd August 2020
One of the best felts on the market bar none.
4th July 2020
Great product great price first class delivery a1++++
Dale Bowman
28th June 2020
Does it's job very well and is nice and strong
22nd June 2020
Great product great price delivery a1+++++
John Chamberlin
17th May 2020
It is just as described in the specifications
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DuPont Tyvek Supro Breather Membrane Felt Underlay - 50m x 1m Roll

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