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

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£95.70 Incl. VAT
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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.


Length 50m Width 1000mm


Permeability Vapour Permeable Roll Size 50m2

Questions & Answers


Can you paint over this if it is exposed and looking dirty?


No, and I don't think that there is a paint for membrane on the market


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.

Have a question about this product?


5 / 5 12 reviews
Eugene Doherty
24th May
Excellent product, extremely durable and virtually impossible to damage during installation
P. Gomez
28th December 2021
Excellent product
27th March 2021
Top quality felt at an excellent price
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++++
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DuPont Tyvek Supro Breather Membrane Felt Underlay - 50m x 1m Roll

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