EPDM (ethylene propylene diene monomer) is a durable synthetic rubber membrane used for flat roofs. It is installed in large sheets to create a seamless, waterproof surface that resists UV rays, weathering, and temperature changes.
A professionally installed EPDM roof typically lasts 25–50 years in the UK. Its resistance to cracking, UV exposure, and extreme weather makes it one of the longest-lasting flat roofing options available.
EPDM generally lasts longer than traditional felt and requires less maintenance. Compared to fibreglass (GRP), EPDM is more flexible and better suited to temperature fluctuations, while GRP offers a harder, more rigid finish.
EPDM roofing usually costs between £80 and £120 per m² in the UK, depending on roof size, access, and preparation work required. Larger, simpler roofs tend to be more cost-effective per square metre. The overall cost, as ever, depends on the specific project at hand.
In some cases, EPDM can be installed over an existing flat roof if the structure beneath is sound and dry. A professional inspection is needed to confirm suitability.
EPDM roofs are very low maintenance. Occasional checks for debris, drainage issues, or damage are recommended, but no regular treatments or coatings are usually required.
Yes, EPDM is ideal for garages, extensions, and outbuildings due to its durability, flexibility, and long lifespan.
Most EPDM flat roofs can be installed within 1–2 days, depending on size and complexity.