Tyvek® Supro Breather Membrane – High-Performance Protection for Pitched Roofs

Premium, BBA-Certified Roofing Underlay for Durable, Energy-Efficient and Condensation-Free Roof Structures

At North West Roofing Supplies, we stock and supply Tyvek® Supro, one of the most advanced and trusted breather membranes available for pitched roofs. Manufactured by DuPont, Tyvek Supro is a multi-functional, vapour-permeable underlay, offering superior durability, water resistance, and long-term performance under all types of roof coverings.

Key Features of Tyvek® Supro

✅ BBA Certified – suitable for use as a fully supported or unsupported underlay in pitched roofs
✅ Highly Vapour-Permeable – helps reduce condensation risk without the need for ventilation above the insulation
✅ Extremely Water-Resistant – protects the building from wind-driven rain and snow
✅ Windtight & Airtight – enhances thermal efficiency by reducing air leakage
✅ Tough, Tear-Resistant Build – excellent durability for installation and long-term performance
✅ Lightweight & Flexible – easy to handle and install with or without Tyvek tape

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Product Construction

Tyvek Supro is constructed from:
– A unique HDPE (high-density polyethylene) Tyvek film
– Bonded between two polypropylene layers
– This provides a monolithic breathable membrane that resists water ingress while allowing water vapour to escape from the inside

Unlike traditional microporous membranes, Tyvek’s structure is non-porous, meaning performance is not affected by dust, dirt or ageing.

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Technical Specifications

– Roll size: 1.5m x 50m (75m² coverage)
– Weight: Approx. 145gsm
– Sd Value: 0.25m – highly vapour open
– UV Stability: 4 months
– Fire Performance: Class E to EN 13501-1
– Temperature Resistance: -40°C to +100°C
– BBA Certificate: 08/4548

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Where to Use Tyvek® Supro

Tyvek Supro is suitable for:
✅ Warm and cold pitched roof constructions
✅ Under slate, clay and concrete tiles, metal, or sheet roofing
✅ Fully supported or unsupported (between rafters) applications
✅ Loft conversions, self-builds, and high-performance housing projects

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Pair With Tyvek Accessories

For best results, combine Tyvek Supro with:
– Tyvek® Double-Sided Tape – to seal laps and overlaps
– Tyvek® Butyl Tape – for sealing nail penetrations and tricky junctions
– Tyvek® Acrylic Tape – for airtight internal joins
– Tyvek® UV Facade Tape – where membrane is exposed behind open-jointed cladding

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Why Choose Tyvek® Supro from North West Roofing Supplies?

✔️ We stock genuine Tyvek Supro membrane rolls
✔️ Competitive pricing with trade discounts available
✔️ Fast collection from branches across the North West or nationwide delivery
✔️ Friendly advice on installation and compliance
✔️ One-stop shop for membranes, battens, tiles, vents and more

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Order Tyvek® Supro Today

Looking for a robust, BBA-certified breather membrane for your next roofing project?

Contact North West Roofing Supplies today.
Call your local branch or request a Quick Quote online – and get the right membrane, first time.

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