Torch-On Felt & Three-Layer Felt Roofing

We supply and install high-performance torch-on felt systems and three-layer felt systems across London and Surrey. Engineered to withstand severe British weather, our built-up felt solutions deliver long-term, leak-free protection for domestic and commercial flat roofs. Whether you need fast torch-on felt repairs, localised three-layer felt repairs, or a complete strip-and-replace torch-on felt replacement, all work is completed to BS 8747:2007, BS 8217:2005, BS 6229 and strict Safe2Torch fire safety guidelines. We use high-tensile SBS modified bitumen for freeze-thaw flexibility and APP for UV protection, giving a proven operational lifespan of 20 to 40 years, backed by 10-year insurance-backed guarantees on three-layer torch-on felt systems.

What's Included

• Triple-layer protection: perforated vapour control base layer (2.0-2.5mm), high-tensile polyester underlay (2.0-3.0mm) and a heavy-duty mineral slate cap sheet (4.0-5.0mm)
• Puncture and UV resistant slate granule surfacing, protecting against foot traffic and intense solar radiation
• Warm roof compatible - integrates with rigid PIR insulation to satisfy UK Building Regulations Part L
• Proven 20 to 40-year operational lifespan, with 10-year insurance-backed guarantee options
• Torch-on felt repairs: blister treatment, split repairs, edge joint re-sealing and perimeter upstands
• Torch-on felt replacements: stripping degraded bitumen or single-ply roofs and replacing with high-grade SBS 3-layer systems
• Three-layer felt repairs: precision cap sheet and underlay repairs to extend existing roof life
• Fully compliant with BS 8747:2007, BS 8217:2005, BS 6229 and strict Safe2Torch fire safety guidelines

Why Choose Alliance Roofing for Torch-On Felt Roofing?

Torch-On Felt Roofing Across London

We provide torch-on felt roofing services throughout London and the surrounding areas. Whether you're in Central London, North London, South London, East London, or West London, our expert team is ready to help.