Lava20 represents a genuine leap forward in flat roofing technology. Unlike traditional torch-on felt that requires open flames, or GRP fibreglass that uses catalysed resins with strict temperature requirements, Lava20 is a cold-applied liquid membrane that cures to form a seamless, rubber-like waterproof coating across the entire roof surface. The system bonds directly to the substrate — whether that is concrete, timber, existing felt, metal, or asphalt — conforming perfectly to every contour, upstand, pipe penetration, and drainage outlet without the need for separate trims or flashing pieces. For complex roof geometries common on older Cumbrian properties, this ability to follow irregular shapes and transitions eliminates the vulnerable junction details that cause failures in conventional sheet-based systems.
One of Lava20's most significant advantages is the complete elimination of hot works from the installation process. There are no gas torches, no naked flames, and no heated bitumen anywhere on your property during installation. This makes Lava20 the preferred choice for schools, care homes, occupied commercial buildings, and domestic properties where fire risk must be minimised. Insurance companies increasingly recognise the reduced risk profile of cold-applied systems, and many contractors working on sensitive buildings are now specifying Lava20 precisely because it removes the fire hazard that has historically been associated with felt roofing installations. Our team at Mr Roofer UK has extensive experience installing Lava20 on properties across Cumbria where traditional hot-applied methods would pose unacceptable risks.
Once cured, the Lava20 membrane exhibits remarkable elasticity, stretching to accommodate building movement, thermal expansion, and the subtle structural shifts that all buildings experience over time. This flexibility, combined with excellent UV resistance and an ability to bridge hairline cracks in the substrate, delivers long-term waterproofing performance that rivals or exceeds EPDM rubber and GRP fibreglass systems. The membrane can also be over-coated in the future to extend its service life indefinitely, making it a genuinely sustainable roofing choice. As Roofing Trade Association members and Bark-reviewed professionals verified through the Lancashire County Council Safe Trader Scheme, we stand behind every Lava20 installation with comprehensive guarantees and detailed photographic documentation.

Cold-applied Lava20 installation on a primary school extension in Ulverston — zero hot works on an occupied building. View this project

Full Lava20 overlay on a bungalow flat roof in Coniston, applied directly over the existing felt covering. View this project

Large-area Lava20 liquid membrane on a retail unit in Kendal with complex penetrations and plant equipment. View this project
Mr Roofer UK provides professional lava20 roofing services across Cumbria and North Lancashire. Our experienced team covers all major towns and surrounding rural areas, ensuring quality workmanship wherever you are. Select your nearest location below to learn more about our lava20 roofing services in your area.
Lava20 Roofing Barrow-in-Furness · Lava20 Roofing Ulverston · Lava20 Roofing Dalton-in-Furness · Lava20 Roofing Askam-in-Furness · Lava20 Roofing Broughton-in-Furness · Lava20 Roofing Millom · Lava20 Roofing Kendal · Lava20 Roofing Windermere · Lava20 Roofing Bowness-on-Windermere · Lava20 Roofing Ambleside · Lava20 Roofing Coniston · Lava20 Roofing Hawkshead · Lava20 Roofing Grasmere · Lava20 Roofing Whitehaven · Lava20 Roofing Workington · Lava20 Roofing Cockermouth · Lava20 Roofing Egremont · Lava20 Roofing Cleator Moor · Lava20 Roofing St Bees · Lava20 Roofing Seascale · Lava20 Roofing Ravenglass · Lava20 Roofing Grange-over-Sands · Lava20 Roofing Cartmel · Lava20 Roofing Arnside · Lava20 Roofing Kirkby-in-Furness · Lava20 Roofing Haverigg · Lava20 Roofing Sedbergh · Lava20 Roofing Keswick · Lava20 Roofing Penrith · Lava20 Roofing Carnforth
Experience the next generation of flat roofing technology with Mr Roofer UK's Lava20 installations. No flames, no seams, no compromise — just seamless waterproof protection that lasts decades. Contact our City & Guilds certified team today for a free survey and no-obligation quotation across all of Cumbria and North Lancashire.
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