What Is the Best Material for a Flat Roof?
Felt, GRP and EPDM compared — how each flat roof system performs and where it suits best.
Built-up felt
Modern torch-on felt systems are a familiar, cost-effective option and easy to repair. They're well suited to simple garage and outbuilding roofs.
GRP (fibreglass)
A seamless, hard-wearing finish that copes well with light foot traffic, making it popular for extensions, dormers and small balconies. Quality depends heavily on dry conditions and careful installation.
EPDM (rubber)
A single-sheet rubber membrane that's flexible, tolerant of temperature changes and often installed with few or no joins. A strong choice for larger flat roofs.
Which is right for you
It depends on use, size, access, detailing and budget. We'll explain the options for your roof in plain terms as part of a free quote.
Need help with your roof?
Our flat roofing service starts with a free inspection and a clear written quote.