Flat roofing designed around water flow
Sound deck preparation
We check the base before fitting a covering that depends on a stable surface.
Drainage routes planned
We form falls, outlets and edges so rainwater has a clear way off the roof.
Material choice explained
We compare EPDM and felt using the roof shape, details and existing substrate.
Flat roofs need falls, not just a flat finish
A flat roof is built with a slight fall so water can reach its outlets rather than settling into permanent puddles. We install flat roofing on garages, extensions and other suitable structures, using EPDM rubber or felt according to the roof and your priorities. Before a flat roof installation in Northampton, we look at the size, deck condition, expected use and amount of detailing. A good membrane cannot rescue an unsound base, so preparation matters. Edges, outlets and drainage routes are formed as parts of the system. The result should move water away cleanly instead of giving it time to test every join.
Critical details receive more than a quick patch
Most flat roofs are simple across the open surface. The demanding parts sit around wall abutments, parapets, pipe penetrations, corners and perimeter trims. We plan these details before laying the main covering so each join directs water towards the drainage route. EPDM can provide a flexible single-ply surface with fewer field joins where the roof shape suits a larger sheet. Felt creates a built-up covering for many straightforward roof forms. We explain how substrate condition, shape and expected performance affect the choice. If the existing roof has only a local defect, repair may be more sensible than a complete new covering.
Frequently asked questions
Is a flat roof meant to hold some standing water?
The roof should have suitable falls and working outlets to move water away. Persistent ponding can place extra demand on the covering and may point to a drainage or deck issue. We assess the falls as part of planning installation or repair.
Should we choose EPDM rubber or felt roofing?
That depends on the roof size, shape, deck, number of details and your priorities. EPDM suits many roofs where a larger flexible membrane can be used. Felt remains practical for many garages and extensions. We explain the suitable route.
Can a new covering go over a damaged roof deck?
A covering needs a sound and properly prepared base. If the deck is damaged, unstable or affected by moisture, it may require attention before the new system is fitted. Covering over a poor substrate risks carrying the same problem into the new roof.