Product Overview
Our High-Performance Breather Membrane Felt Underlay offers exceptional resistance against wind-driven rain and external moisture ingress. This vapour-permeable underlay is ideal for both ventilated and non-ventilated cold and warm roof constructions, ensuring durability and long-term service.
Constructed from high-performance composite layers, the membrane maintains tensile strength and dimensional stability, facilitating straightforward handling, cutting, and installation. It supports controlled vapour movement from loft spaces while providing a water-resistant barrier.
Product Specifications
| Specification |
Details |
| Width |
1m |
| Length |
50m |
| Sales Unit |
Roll |
| Sales Unit Coverage |
50m2 |
Features & Benefits
-
Breathable performance: Allows vapour escape while resisting moisture penetration.
-
High tensile strength: Durable composite design for installation and service life.
-
Wind-uplift resistance: Suitable for ventilated and non-ventilated systems.
-
Low water permeability: Reliable secondary weatherproof layer.
-
Installer friendly: Lightweight and flexible for easy handling.
-
Coverage: Supplied in a 1.5m × 50m roll, offering 75m² of coverage.
Applications
-
Cold or warm pitched roofs: Ideal beneath tiles and slates.
-
Refurbishment projects: Enhance underlay performance in roof upgrades.
-
New build roofing: Integrate within modern roof build-ups.
-
Wind-exposed sites: Suitable for elevated wind resistance.
Installation Guidance
-
Roll positioning: Install horizontally with appropriate laps.
-
Fixing method: Use corrosion-resistant staples or nails.
-
Lap formation: Adhere to guidelines for head and side laps.
-
Eaves and ridge detailing: Ensure proper drainage and ventilation.
-
Compliance: Installation must meet BS 5534 standards.
FAQs
-
Q: Can this membrane be used in non-ventilated roofs?
A: Yes, it is suitable for both ventilated and non-ventilated roofs.
-
Q: What tools are required for installation?
A: Corrosion-resistant staples or nails are recommended for securing the membrane.
-
Q: Does it comply with building standards?
A: Yes, installation must comply with BS 5534 standards.
Fast Delivery Dispatch in 24 hrs
Satisfaction Guaranteed.
Secure Payments
Need help? Call Us +4401282 277786 or email sales@londonbricks-uk.co.uk
