Roof underlay designed to keep pitched roofs dry while allowing trapped moisture to escape. Installers and homeowners gain peace of mind from a certified, breathable membrane that resists water and UV degradation. Is the Eurovent Breathable Roofing Felt the best membrane for your next roofing or refurbishment job?
⚡ At a Glance
- • Weather Protection: W1 water-tightness rating with enhanced UV resistance for reliable weather performance
- • Best for: Roofers and DIY installers fitting tiled, slated or metal pitched roofs
- • Not ideal for: Not intended as a final exposed roof covering; designed as underlay beneath tiles or slates
Three-layer breathable membrane supplied as a 1m x 50m roll with a heavy-duty 115 GSM weight. Vapour permeability is rated at 3000 g/m²/24h and the roll carries BBA, CE and LABC certifications.
Reduces Condensation Risk - with 3000 g/m²/24h Vapour Permeability
Three-layer vapour-permeable membrane allows internal moisture to pass through to the outside while preventing liquid water ingress. The 3000 g/m²/24h figure measures the amount of water vapour transmitted per square metre in 24 hours.
Moisture from lofts and insulation is less likely to accumulate, helping to protect timbers and insulation performance.
Resists Water Penetration During Weather Exposure - with W1 Water-tightness and UV Additives
W1 water-tightness indicates a high resistance to water penetration in a breathable underlay. UV-stable additives reduce material breakdown when exposed during installation or temporary exposure.
Immediate protection from wind-driven rain during reroofs and longer-lasting material integrity where occasional UV exposure occurs.
Quicker, Easier Handling on Site - with 1m x 50m Roll Format and 8kg Weight
Rolls measure 1 metre wide by 50 metres long, covering 50 square metres per roll and weighing around 8kg. The width conforms to typical rafter spacings and the weight keeps individual rolls manageable.
Single installers can handle and position rolls more easily, reducing installation time and physical strain during fitting.
✨ The 4 Key Reasons for Eurovent Breathable Roofing Felt
- BBA & CE Approvals - Eases compliance with building inspections and specifications
- 115 GSM Heavy-Duty Construction - Durable underlay suited to pitched roof environments
- Enhanced UV Resistance - Slows material degradation during exposure or staging
- Lightweight 1m x 50m Rolls - Manageable for single installers and speeds up fitting
📋 Technical Details at a Glance
- Category: Home Improvement - Roofing underlay
- Brand: Eurovent
- Material: Three-layer breathable membrane
- Weight: 115 GSM
- Roll Size: 1m x 50m (50 sq/m per roll)
❓ Frequently Asked Questions
Q: Is this membrane suitable for ventilated and non-ventilated roofs?
A: Yes. Product descriptions state suitability for warm and cold, ventilated and non-ventilated roofs.
Q: Will the breathable design help prevent condensation?
A: Yes. The three-layer vapour-permeable construction and 3000 g/m²/24h rating allow internal moisture to escape, reducing condensation risk.
Q: Are the rolls easy for one person to handle on site?
A: Yes. Rolls are 1m wide, 50m long, and weigh around 8kg, which makes handling manageable for individual installers.
🏆 Our Verdict
The Eurovent Breathable Roofing Felt suits homeowners and professional installers who need a certified, breathable underlay for pitched roofs. Certified three-layer construction with 115 GSM weight, W1 water-tightness and high vapour permeability balances moisture control with weather resistance. While purchase costs vary, recognised approvals and durable materials suggest good long-term value for reroofs and new builds.
