Hi, I have a roof leak and after remembering how Sanzu08 was helped in this thread, I thought I could ask some advice here. Seeing as how a picture is worth a 1000 words I'll post a few shots of the problem. Water is coming in around the light fitting shown in the first pic. It only happens during very heavy rain (which we are getting alot of in Ireland for the last two months). I am renting and the landlady has been very good, getting the original builders out promptly to fix when it first happened. But they are clueless as to what the issue causing it is. They got a guy to put down sealant around the exposed edges not fixing the problem. The drain (2) is at the edge of the roof. I've cleared a path of the stones (which I guess are just cosmetic) to hopefully get better drainage to the drain. The builder thought the problem was the when the wind is blowing a certain direction, the water would blow up under the slates (3). Does anyone have any thoughts? I hear flat roofs are bad for leaks (this roof is part of an extension built 3 years ago main part of house is inverted v shape). Thanks.