Buy BBA-certified EPDM rubber roofing membranes cut to size — available in 1.0mm, 1.2mm, and 1.5mm thicknesses with free UK delivery. Our EPDM membranes are supplied as a single continuous sheet with no joins, overlaps, or weak points, giving you a completely seamless, watertight flat roof covering that outperforms felt, fibreglass (GRP), and liquid coatings in every measurable category.

EPDM (ethylene propylene diene monomer) rubber is the most durable flat roofing membrane available to the UK market. It is UV-stable, cold-crack resistant to -45°C, and rated for continuous surface temperatures up to +120°C. Once installed, an EPDM membrane requires no recoating, no retreating, and no maintenance — it simply sits on your roof and waterproofs it for decades. Every membrane we sell carries a 50+ year manufacturer-backed guarantee and full BBA (British Board of Agrément) certification.

Our membranes are available cut to your exact dimensions — simply enter your roof measurements at checkout and we'll supply the sheet pre-cut, ready to lay. No cutting waste, no leftover rolls. Standard sizes are available for immediate dispatch; custom cuts are typically dispatched within 1–2 working days.

Choose from three thickness options depending on your application. The 1.2mm membrane is our most popular choice for sheds, garden rooms, and domestic outbuildings. The 1.5mm heavy-duty membrane is recommended for garages, house extensions, and any roof that will bear foot traffic or heavy snow loads. For the most demanding applications, our 2.5mm self-adhesive fleece-backed membranes offer a 3-in-1 waterproofing system with built-in adhesive and carrier fleece.

All EPDM membranes are compatible with our full range of adhesives, primers, trims, and installation accessories. Not sure which thickness or system is right for your project? Call our technical team on 02031510153 for free expert advice, or browse our complete EPDM roof kits — everything included in one box.