Description
Strotex Supreme Breathable Membrane 170g – 50m x 1m | CE Certified Roofing & Wall Membrane
Strotex Supreme 170g Breathable Membrane – Premium Roofing Underlay for Superior Weather Protection
The Strotex Supreme Breathable Membrane 170g (50m x 1m) is a premium-quality breathable roofing and wall membrane designed to provide exceptional protection against moisture, wind, rain, and airborne contaminants while allowing water vapour to escape from within the building. Manufactured to British Standards and CE Certified, Strotex is recognised as the gold standard in breathable roofing membranes, trusted by roofing professionals across the UK.
With its robust 170g/m² construction, the Strotex Supreme membrane offers outstanding strength, durability, and weather resistance, making it ideal for new build developments, roof refurbishments, timber frame construction, and external wall applications.
Why Choose Strotex Supreme?
- Premium 170g/m² breathable membrane
- Roll size: 50m x 1m (50m² coverage)
- British Standard Approved
- CE Certified
- Higher specification than equivalent market membranes
- Excellent vapour permeability to help reduce condensation
- Superior resistance to wind-driven rain and moisture ingress
- Strong, tear-resistant construction for long-lasting performance
- Suitable for pitched roofs, timber frame walls, and external cladding systems
- Easy to install for professional and domestic projects
Superior Performance Compared to Standard Membranes
Strotex breathable membranes are manufactured to significantly higher specifications than many competing products:
- Strotex 95g – Higher specification than equivalent market membranes
- Strotex 115g – Outperforms standard alternatives
- Strotex 135g – Higher specification than comparable products
- Strotex 150g – No direct market equivalent
- Strotex 170g – Exceeds equivalent market membranes
- Strotex 220g – Industry-leading specification, outperforming all other breathable membranes available
Advanced Moisture & Weather Protection
The Strotex Supreme Breathable Membrane acts as an effective secondary protective layer beneath roof coverings and external cladding systems. It helps prevent moisture that penetrates the outer covering from reaching the building structure while allowing trapped water vapour to escape, reducing condensation and helping to maintain the performance of insulation.
It also helps protect against:
- Wind-driven rain
- Moisture ingress
- Dust and dirt
- External environmental contaminants
This combination of high breathability and weather resistance helps improve the longevity, energy efficiency, and structural integrity of your roofing or wall system.
Product Specifications
- Brand: Strotex
- Product: Supreme Breathable Membrane
- Weight: 170g/m²
- Roll Size: 50m x 1m
- Coverage: 50m²
- Certification: CE Certified
- Compliance: British Standards
- Colour: As shown in the second product image
The Strotex Range
The Strotex range offers breathable membranes to suit every roofing application, from lightweight domestic projects to demanding commercial installations. For projects requiring the highest level of performance, Strotex Q-Performance 220g features a 4-layer fully permeable construction, delivering market-leading durability, breathability, and weather protection.
Choose the Strotex Supreme Breathable Membrane 170g – 50m x 1m for a professional-grade roofing underlay that combines exceptional strength, outstanding breathability, and long-lasting protection for residential and commercial roofing projects.

