FREE DELIVERY OVER £50
CLICK & COLLECT
FREE Returns
Screwfix Gift Cards a perfect gift

Save Time, Please use Click & Collect

Protect VP400 Roofing Underlay 50 x 1m (55379)

£ 79.99INC VAT

Add to basket for...

Check stock in your local store

Protect VP400 Roofing Underlay 50 x 1m (55379)

Protect VP400 vapour permeable roofing underlay has excellent nail-tear and tensile strength while remaining lightweight and easy to cut. Used as an underlay for warm or cold roof construction, it helps to avoid the risk of roof-space condensation. Easily marked with a chalk line. 100% waterproof with unrestricted use in windy areas. UV and heat-resistant.

  • Weight: 180g/m²
  • Vapour Permeability / Resistance 0.11MNs/g
  • High Performance & Watertight
  • Use in Warm or Cold Pitched Roof Constructions on Any Roof Shape or Building Type

More Info

View all: Protect Roofing Underlay

£79.99INC VAT

Add to basket for...

Check stock in your local store

Protect VP400 Roofing Underlay 50 x 1m is rated 4.8 out of 5 by 18.
  • y_2020, m_8, d_4, h_15
  • bvseo_bulk, prod_bvrr, vn_bulk_3.0.10
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_18
  • loc_en_GB, sid_55379, prod, sort_[SortEntry(order=FEATURED, direction=DESCENDING), SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_screwfix
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • CLOUD, getAggregateRating, 18ms
  • REVIEWS, PRODUCT

Add to saved list...

Save
Rated 5 out of 5 by from Protect vp 400 Great product, easy to lay, easy to cut. A pleasure to work with.
Date published: 2020-07-16
Rated 3 out of 5 by from Membrane This seems like a good membrane, is tough and doesn't tear easily but beads water well and cuts with a Stanley knife nice and easy. Can't comment on longevity yet. My only complaint is that the first roll I bought was grey on the underside but the second is black so it doesn't look uniform and I'm half way through the project, mainly a cosmetic thing but a bit annoying that it's no longer the same as in the picture.
Date published: 2020-01-03
Rated 5 out of 5 by from DIYer Good quality and nice a thick also breathable which keeps the building inspector happy.
Date published: 2019-06-27
Rated 5 out of 5 by from Quality Quality product. Light weight and so easy to use. Pleasure to use.
Date published: 2019-04-03
  • y_2020, m_8, d_4, h_15
  • bvseo_bulk, prod_bvrr, vn_bulk_3.0.10
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_18
  • loc_en_GB, sid_55379, prod, sort_[SortEntry(order=FEATURED, direction=DESCENDING), SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_screwfix
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • CLOUD, getReviews, 124ms
  • REVIEWS, PRODUCT

Joint tape

Is there an appropriate tape for taping the joints?
Asked by: DIYDicky

Can this also be used as a vapour barrier on walls as well as underlay on roof?

Asked by: Sparrows
I've used it on my garden room/shed/workshop it's the same as the more expensive Tyvek paper building wrap, it's quite thick, difficult to tear. Same thing as a roof, keep the wind and rain out being waterproof but allows moisture out of the roof/building.
Answered by: DIYDicky
Date published: 2020-07-24

Is this possible

Hi. Looking at installing this on the underside of a fiberglass roof before the celotex, would the moisture side of it still work and how would be the best way to fix it as nail, screws and staples are out of the question?
Asked by: Equinehusband

What is the recommended method for fixing this product to the plywood deck of a warm construction flat roof, while maintaining its integrity, and also what would be the recommended method for sealing overlaps.

Asked by: hobie

Is this a replacement for the felt under roof tiles?

Asked by: Aid1473
Hello Aid1473, Yes, this breathable membrane would be installed under the roof tiles in place of a traditional felt. If you are in any doubt about which membrane is right for your job, we would recommend consulting a roofing professional. Thank you for using Q&A
Answered by: KirstieC
Date published: 2017-11-28
  • y_2020, m_8, d_5, h_16CST
  • bvseo_bulk, prod_bvqa, vn_bulk_3.0.10
  • cp_1, bvpage1
  • co_hasquestionsanswers, tq_7
  • loc_en_GB, sid_55379, prod, sort_[SortEntry(order=LOCALE, direction=DESCENDING), SortEntry(order=FEATURED, direction=DESCENDING), SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_screwfix
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • CLOUD, getReviews, 95ms
  • QUESTIONS, PRODUCT
  • bvseo-msg: BV SEO Content for this product did not include verbose reviews.;
Specification
Brand Protect
CE Standard (Tested to EN...) EN 13859.
Fabric Weight 180 g/m²
Manufacturer Guarantee 1 Year Guarantee
Model No VP400
Pack Size 1
Pieces in Pack/Case 1
Product Length 50 m
Product Type Roofing Underlay
Product Width 1 m