Flat roofs, common on extensions, garages and some newer builds across Emersons Green, behave quite differently to a pitched, tiled roof when it comes to storm damage, and the problems that follow a bad spell of weather often look different too. Rather than individual tiles being dislodged, the issues tend to involve the covering itself, whether that is traditional felt, a single-ply membrane, or a rubber system such as EPDM. Because the whole surface is a single continuous covering, damage in one spot can allow water to spread sideways underneath before it ever shows as a leak.
Wind uplift is one of the more significant risks for flat roofs during storms. If wind manages to get underneath an edge or a join in the covering, even a small area, it can peel the material back, sometimes tearing it further as the wind continues. Once a section of covering has lifted, it rarely reseals on its own, leaving that part of the roof exposed until it is properly repaired. This is particularly likely at perimeter edges and around any upstands, such as where the flat roof meets a wall or a rooflight.
Splitting felt is another common issue, particularly on older flat roofs where the material has already become somewhat brittle with age and exposure to sunlight over the years. A storm does not necessarily need to be exceptional to cause a split in felt that was already close to failing; it simply provides the final stress the material could not withstand. Once split, even a narrow crack is enough to let water through steadily during rain, and the crack itself can be surprisingly hard to spot on a dark, granulated felt surface without a close inspection.
Ponding water, where water collects in a low spot rather than draining away properly, is a related problem that storms can make worse, either by depositing debris that blocks a drainage outlet or by adding enough extra rainfall to reveal a drainage fall that was already slightly inadequate. Standing water left for extended periods puts additional strain on the roof covering and can accelerate the very kind of splitting or wear that leads to leaks.
Because flat roof problems are not always as visually obvious as a missing tile on a pitched roof, particularly on a roof that cannot easily be seen from ground level, it is worth having a flat roof checked specifically after a storm rather than assuming it has come through unaffected. What looks like a small blister or lifted seam can develop into a genuine leak surprisingly quickly.
If a flat roof on your Emersons Green property has been affected by recent storms, Brunel Roofing Bristol can inspect it and advise honestly on whether a repair or a more complete recovering is the sensible option, with a free quote either way.
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