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Permavent RED Breathable Roofing Underlay - Vapour Open Roofing Membrane

Name: Permavent RED Breathable Roofing Underlay - Vapour Open Roofing Membrane
Brand: Permavent Ltd
SKU: jybevnmi4XivWrJq3pRaRZ

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Taped 50

Permavent Ltd

Three-layer air and vapour open membrane for use as a pitched roof underlay.

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+44 (0)1305 766703 Website

Application

Suitable for use in all pitched roofing underlay applications.

Description

Permavent RED, a heavy-duty vapour-permeable roof membrane with superior tensile strength and nail-tear resistance. Permavent Red provides a high-performance secondary barrier to wind and rain both during and following the construction process.

Features and benefits:

Strong breather membrane.
Resilient roofing underlay.
Suitable for use with solar panels.
W1 water resistance.
BBA certified.
Three-layer membrane.

Available in three formats

Taped 50 – 1 m × 50 m roll with integrated double‑sided tape
Untaped 50 – 1 m × 50 m roll, ready for use with site‑chosen tapes or sealants
Untaped 75 – 1.5 m × 50 m roll for wider coverage when desired

General information

Color	Red
Material	Polypropylene Guidance for specification option: Non-woven.
Shape	Rectangle
Length	50000 mm
Width	1000 mm 1500 mm
Warranty description	15 year

Uniclass	Pr_25_57_10_94 Vapour-permeable sheetsPrimary
CAWS	H61/235 Vapour-permeable underlay H60/235 Vapour-permeable underlay H31/280 Breather membrane H67/290 Vapour-permeable underlay H60/22 Vapour-permeable underlay H65/235 Vapour-permeable underlay H67/24 Vapour-permeable underlay H62/235 Vapour-permeable underlay H61/22 Vapour-permeable underlay P10/65 Breather membrane H31/55 Breather membrane

SKU Code	RED50TAPED
GTIN/EAN	5060747291005

Specification data - Vapour-permeable sheets

Standard	To BS EN 13859-1.
Class (minimum)	W1.
Third-party certification	British Board of Agrément (BBA) certificate.
Performance criteria	-
Water vapour properties	Water vapour resistance (Sd) to EN 12572: 0.02 m.
Fire performance	Reaction to fire: To BS EN 13501-1, Class E.
Tensile properties	To BS EN 12311-1 (MD/ CD), 350/240 N/50mm.
Recycled content As defined in clause 7.8 of BS EN ISO 14021	100%.
Material	Polypropylene, non-woven.
Form	Spun-bonded.
Weight (minimum)	160 g/m².

Roll size	1 x 50 m.
Nail shank	MD/ CD, 140/ 230 N.
CoverageArea	50 m².
Elongation	MD/ CD, 70/ 70%.
Adhesive	Double sided, air and water-tight, three-dimensionally formable acrylic adhesive.

Sustainability data

Contains Red List materials	No
Country of material origin	United Kingdom
Country of product manufacture	United Kingdom
Material	Polypropylene Guidance for specification option: Non-woven.
Recyclability	Recyclable
Recycled content As defined in clause 7.8 of BS EN ISO 14021	100 %
Expected Life	Lifetime