Flat-roof details handled from the deck up
Three material choices
We explain the differences between EPDM, TPO and modified bitumen plainly.
Deck checked first
We assess the substrate before deciding whether to strip, prepare or overlay.
Water directed away
We check falls, outlets and edge details to reduce standing water and leaks.
The right membrane for the roof below
Flat roofing succeeds or fails at its edges, outlets and awkward junctions. We install EPDM, TPO and modified bitumen systems in Coatbridge, matching the material to the roof dimensions, use, exposure and existing deck. EPDM is a flexible rubber membrane with fewer field seams on many smaller roofs. TPO uses heat-welded seams and provides a clean, durable surface. Modified bitumen forms a robust layered covering suited to many established flat-roof applications. We explain maintenance needs and practical differences before recommending a system for an extension or another flat or low-pitch section.
Falls and details that keep water moving
A membrane cannot rescue poor drainage on its own. We assess the falls, outlets, edge trims, upstands and penetrations before fitting begins. Depending on the existing roof, we may recommend stripping the covering or confirm whether an overlay is suitable. We prepare the deck, address unsuitable areas and plan the build-up around insulation, vapour control and ventilation requirements. During installation, we form the seams and junctions carefully, then check outlets and drainage paths so rain can leave the roof instead of settling into a long unwanted stay.
Frequently asked questions
Which flat-roof membrane should we choose?
It depends on the roof size, deck condition, exposure, number of penetrations and intended use. We compare EPDM, TPO and modified bitumen after inspection, then explain the fitting and maintenance considerations.
Can we install a new membrane over the old roof?
Sometimes, but an overlay is only sensible when the existing build-up and deck are suitable. We inspect for trapped moisture, damage and poor falls before recommending an overlay or complete strip.
Why does water sit on a flat roof?
Standing water often points to inadequate falls, blocked outlets or local dips in the deck. We inspect the drainage route and shape of the roof, then include suitable corrections within the proposed work.