Buyer's guide
EPDM vs GRP Flat Roofing
EPDM and GRP both outperform felt — but they fail differently and suit different projects. EPDM is one-piece, flexible, fast to install on simple rectangles. GRP is rigid, seamless, better at complex shapes and trims. Here's how we pick.
- EPDM: best for simple flat decks, 30+ year life, no on-roof curing
- GRP: best for complex shapes, integral trims, 25+ year life
- EPDM cheaper per m² on large simple areas
- GRP firmer underfoot for foot-traffic decks
- Both manufacturer-guaranteed when installed correctly
How we'd specify on your project
Every comparison depends on the existing structure, the surrounding properties, and how long you'll hold the building. We'll tell you on the survey, in writing, which we'd specify and why.
Related pages
Comparison FAQs
Which do you install most often?+
We install both. The choice is driven by the project, not by what's easiest for us.
Can you supply manufacturer warranties for either?+
Yes — we're approved installers for the main manufacturers in both systems.
Need Roofing Work You Can Rely On?
Contact Stoker Property Solutions for new roofs, flat roofing, repairs and maintenance across Newcastle, Sunderland and the wider North East.