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- 27 Oct 2020
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Hi, my neighbour has two smallish flat roofs on her front and back dormers that are covered with felt, and she says it's twenty years old and is afraid that it needs replacing. I am thinking of stripping the felt off and putting EPDM on - does this have to be glued down or can it just be laid on top as long as the edge trims are done correctly?
I only ask because I fitted EPDM on my 8' x 10' shed about five years ago by just screwing a long batten at either end of a large sheet of EPDM, rolled it up onto one of the battens, then unrolled it over the top of the shed (in the pouring rain, as the shed roof felt had started to disintegrate and I had to do it urgently), and then after it was unrolled over the entire roof of the shed, I just screwed the battens into the side of the bottom sides of the roof (sorry, I don't know the correct term), and refitted the flat timbers that go on either end of the roof (the two diagonals at the front and back of the shed, as it were), and I've never had a problem with it.
I only avoided using the glue because a) it was raining b) the roof didn't feel very strong and I didn't want to put my weight on it, and c) I'd watched a few videos of EPDM being put on shed roofs and they said that after putting the glue on the roof, you had to be very careful how you unrolled the EPDM onto it, because one mistake and it's stuck in the wrong place, so you could more easily get ripples in the EPDM.
I only ask because I fitted EPDM on my 8' x 10' shed about five years ago by just screwing a long batten at either end of a large sheet of EPDM, rolled it up onto one of the battens, then unrolled it over the top of the shed (in the pouring rain, as the shed roof felt had started to disintegrate and I had to do it urgently), and then after it was unrolled over the entire roof of the shed, I just screwed the battens into the side of the bottom sides of the roof (sorry, I don't know the correct term), and refitted the flat timbers that go on either end of the roof (the two diagonals at the front and back of the shed, as it were), and I've never had a problem with it.
I only avoided using the glue because a) it was raining b) the roof didn't feel very strong and I didn't want to put my weight on it, and c) I'd watched a few videos of EPDM being put on shed roofs and they said that after putting the glue on the roof, you had to be very careful how you unrolled the EPDM onto it, because one mistake and it's stuck in the wrong place, so you could more easily get ripples in the EPDM.