Any seam in the roofing material is a natural spot for a leak. In most cases, you find out about a roof leak by seeing a water stain on your ceiling. Flat Roof Repair The Causes of Leaks Commercial flat This is perhaps all the more true of flat roofs, because water doesn’t run off of the roof surface. How to find a roof leak on a flat roof . How to fix a roof leak around the chimney. So all you need to do is simply follow it up to its source. How to find a leak in a metal roof. How do you find a leak in a flat roof? People automatically assume that the material is defective or a seam has come loose. To locate the source of the problem, go up into your attic and try to get above the stain in the ceiling. Utilizing infrared scanning as a tool to locate a hard to solve roof leak may assist a homeowner or professional contractor in resolving a difficult leak condition. With a traditional sloped roof, a leak can be found quite easily as water will flow in a downward mo...