EPDM rubber roofing
EPDM is a flexible single-ply membrane considered for suitable flat-roof repair, renewal and replacement projects.
Key points
- Flexible membrane system.
- Suitable for many extensions.
- Careful edge detailing.

What does your flat roof need?
If a flat roof is leaking or holding water, the surface is only part of the picture. The deck, fall, outlets, rooflights, upstands and edges all affect how rain leaves the roof.
Depending on what we find, the answer may be a local repair, drainage work or full replacement using a suitable EPDM, GRP or felt system.
For Ayr extensions, garages and dormers, good falls and clear outlets are especially important because frequent west-coast rain quickly exposes ponding and weak edge details.
The covering, deck and drainage need to work together. These are the principal flat-roof materials and problems we assess.
EPDM is a flexible single-ply membrane considered for suitable flat-roof repair, renewal and replacement projects.
GRP forms a rigid resin-based covering and relies on a sound, correctly prepared deck beneath it.
Modern felt systems use layered coverings for suitable flat roofs, with drainage and perimeter details included in the specification.
Standing water can indicate poor falls, restricted outlets or movement in the roof deck and should be investigated before repair.

The first inspection considers the condition of the surface, the route water takes, the roof deck where accessible and the details at edges, walls, rooflights and outlets.
A local fault may be suitable for repair, while wider deterioration, failed layers or a poor deck may point toward replacement.
EPDM, GRP and felt are distinct flat-roof materials, but none should be selected in isolation from the roof shape, deck condition, drainage and edge details. The suitable system is the one that fits the roof and scope found.
A flat-roof leak can be investigated on this page when it relates to a flat roof, while general leak tracing is covered separately.
For more detail, see Roof leak repairs.
Ayr's frequent rain makes falls and drainage central to a flat roof's performance on extensions, garages and dormers.
Roof size, deck condition, drainage, access, edge details and the chosen material affect the quote.
On extensions, garages and dormers, we check the fall towards the outlets, deck condition and upstands before deciding whether EPDM, GRP, felt or a local repair is suitable.
A repair may be possible for a local fault, depending on the condition of the surface, deck, drainage and surrounding details.
They are different flat-roof systems with different material and detailing requirements. The roof condition and design guide the suitable option.
Ponding can relate to falls, outlets, debris, deck condition or the roof surface. An inspection helps identify the likely cause.
Roof size, deck condition, drainage, edge details, access and whether EPDM, GRP or felt is suitable all influence the written quotation.
Tell us what you have noticed, where the property is and which service seems closest.