EPDM Membranes

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.

How our membrane prices work

Membrane is sold by the linear metre at your chosen sheet width, so the “from” price on each card below is simply the price of one metre at that product's narrowest available width — it is not a like-for-like comparison between thicknesses. To compare thicknesses properly, use the price per square metre:

• 1.2mm — £25.50 per m² (widths from 0.53m). Our most popular choice for sheds, garden rooms and domestic outbuildings.
• 1.5mm heavy duty — £34.98 per m² (widths from 0.53m). Recommended for garages, house extensions and any roof carrying foot traffic or heavy snow loads.
• 1.0mm — £26.52 per m² (supplied in wider sheets from 1.40m, so its “from” price looks higher even though the rate per m² is similar to 1.2mm).

Not sure how much you need? Our EPDM roof kit calculator works out the exact sheet size and every fixing for your roof in under a minute.

Why EPDM

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 cut to your exact dimensions — simply enter your roof measurements and we'll supply the sheet pre-cut, ready to lay. No cutting waste, no leftover rolls. Standard sizes and custom cuts alike are dispatched the same working day when ordered before 2pm, for next-working-day delivery.

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.