Flat roof repairs, three-layer felt and replacement options
A flat roof should have enough fall to guide water towards its outlets, with sound waterproofing at edges, upstands and joins to walls. Leaks may come from a split felt seam, an outlet problem, trapped water or failed detailing around a skylight. Locating the weak point can help distinguish a localised repair from a more extensive replacement.
When is a new felt roof worth considering?
Where an existing covering is brittle, blistered or repeatedly leaking, a replacement may be more sensible than another patch. We discuss traditional three-layer felt roofing, edge details and the suitability of the underlying structure before quoting. Associated gutter and rainwater drainage problems should be addressed as part of the overall repair plan.
Do flat-roof leaks always mean the whole roof must be re-felted?
No. Some isolated defects are repairable, but the covering's age and general condition matter. For other defects, browse roof repairs or ask about a suitable free drone roof inspection to identify visible issues.