I have one of those small zinc-alum sheds with a flat roof, but noticed that during heavy rain, it leaks badly.
My suspicion is that the because the roof is almost flat, the water just accumulates on the roof, and during heavy rain the water rises to the level where the roof sheets overlap, and since the overlaps are not sealed but just sit over the top of the next sheet, this is where the water comes through.
How can I make this roof waterproof? Short of installing a sloping roof or covering it with a sloping roof. A simple method would be good
My suspicion is that the because the roof is almost flat, the water just accumulates on the roof, and during heavy rain the water rises to the level where the roof sheets overlap, and since the overlaps are not sealed but just sit over the top of the next sheet, this is where the water comes through.
How can I make this roof waterproof? Short of installing a sloping roof or covering it with a sloping roof. A simple method would be good