EPDM Rubber Roofing

EPDM stands for ethylene propylene diene monomer. It is a type of synthetic rubber that is manufactured into large flexible sheets and used as a waterproofing membrane on flat roofs.

A properly installed EPDM roof will typically last 25 to 30 years. Some roofs last longer depending on the quality of the installation and how well the drainage is maintained. It is one of the longer lasting flat roofing systems available.

EPDM generally outlasts traditional felt by a significant margin. Felt systems typically last 10 to 15 years before needing attention, while EPDM can double that. EPDM is also less likely to crack, blister or shrink over time. For most flat roofs, EPDM is the more cost effective choice across the lifetime of the roof.

Yes. Small splits, punctures or lifted edges can be repaired using EPDM patches and bonding adhesive. The repair blends into the existing membrane and restores the waterproof seal. If the damage is widespread or the roof is old, a full replacement will usually be more cost effective than ongoing repairs.

In most cases, replacing a flat roof on a residential property is classed as permitted development and does not need planning permission. If your property is listed or in a conservation area, there may be additional requirements. It is worth checking with your local council before work starts if you are unsure.

EPDM is a flexible rubber membrane while GRP is a rigid fibreglass system. EPDM handles movement and temperature change well due to its flexibility. GRP creates a harder, more seamless finish and is often preferred for roofs with complex edges or detailing. Both are reliable systems and the right choice depends on your specific roof.

The cost depends on the size of the roof, the condition of the deck underneath and any additional work needed such as new insulation or drainage. As a guide, EPDM installations typically fall in the range of £70 to £90 per square metre. A free survey and written quote will give you an accurate price for your job.

No. EPDM is a low maintenance system. The main tasks are clearing debris from drainage outlets a couple of times a year and having a quick visual check after severe weather. An occasional professional inspection every few years will catch anything minor before it becomes a problem.

Yes. EPDM can be installed at lower temperatures using cold weather adhesive formulated for the conditions. Very wet or icy surfaces will delay the job, but experienced roofers plan around the weather and will not proceed if conditions are unsuitable for a proper bond.

You get a workmanship guarantee from Abel Roofing covering the installation, plus the manufacturer warranty on the EPDM membrane itself. Material warranties on EPDM systems can extend to 20 years or more. All guarantees are provided in writing.

Yes. Garage roofs are one of the most common applications for EPDM. The material is well suited to the size, shape and typical drainage setup of a garage flat roof. It is lightweight, so it does not add unnecessary load to the structure, and it handles the temperature swings that garage roofs are exposed to.

A new EPDM installation includes a layer of rigid insulation board as standard. This improves the thermal performance of the roof, reduces heat loss and can lower your heating costs. Warm roof construction, where insulation sits above the deck, is the current standard and is what we use on all installations.

If the roof is over 20 years old, has recurring leaks in multiple areas, shows widespread cracking or blistering, or has visible sagging, replacement is usually the better option. A targeted repair can resolve isolated damage, but if the membrane is deteriorating across a large area, it is more cost effective to start fresh.

Most residential EPDM roof installations take between two and four days. This includes stripping the old roof, inspecting and preparing the deck, laying insulation and fitting the membrane. Larger or more complex roofs will take longer. You will be given a clear timeline before work starts.