If it looks a mess and is torn, split or has otherwise deteriorated over a large part of the total area, consider replacing the whole roof. Start by looking at the overall condition of the flat roof covering. The leak in the top layer will probably not be directly above where the leak appears in the room the water will be getting under the top layer of felt and then running between layers before finding a way through the boarding. The first step is to find the source of the leak in the surface of the felt. If you have any doubts about a safe means of working on the roof, consult a professional roofer.

Using a board to walk on will spread your weight and remember to take care when working near the edges of the roof as a fall may result from any slip. The first sign of a problem with a flat roof will probably be found in the room below, either with water actually dripping, or with signs of dampness in the ceiling.īefore stepping onto a flat roof, consider its strength - if the roof is old and has been leaking for some time, the roof timbers may have become rotten in areas. Don't walk on a flat roof unless you know that it is sound. Safety: Working on a roof involves working at height (even on a bungalow), so always use scaffolding or other stable platform, never use just ladders. Repairing blisters - splits and tears - lifting overlaps - flashing - whole roof treatment

How to fix a flat roof leak