![]() ![]() Pooling of water on the roof surface can happen when the drainage fall towards the gutter or outlet that was designed into the roof is lost due to natural settlement of the building. Water leaks due to damage to or deterioration of the felt over time – most felt, or coverings have a limited lifespan – usually 15 to 25 years depending on the product. Even where the contractor is recommended by the product supplier, that is no guarantee they will do a good job.Ī further difficulty is when it comes to diagnosing problems with a flat roof, the water can enter at point A, travel between membranes or along a roof deck to a weak point and emerge within a building at point B, very often several meters away from the offending puncture. In my experience, the issue is poor workmanship in most cases, with construction failing to meet the manufacturer’s recommendations. Our ancestors, with their pitched thatch and slated roofs, even galvanised sheeting, did not entertain flat roofs and neither should we however, the architects would probably pay no heed to that precedent. In my opinion, flat roofs should be avoided in a country such as ours where there is an abundance of windblown rainfall. Is that true? Is there anything we can do to prevent leaks?įlats roofs are often problematic. ![]() I’m putting a flat roof on our extension, but I’ve heard that there is a greater danger of water leaking in from a flat roofs. ![]()
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