Hi all,
Hope you can help with this - probably a simple thing for someone with more experience!
We have a flat roof garage that is shared by our neighbour (interior centre wall, two single garage doors on front) with a flat felt roof.
Before we moved in over the summer, we knew that our neighbour's side had collapsed in several places so we made it a priority to change the whole roof. We did it ourselves with the help of a very experienced DIYer who's done loads of similar projects. We used plastic-backed chip board, full bitumen layer, felt underlay and overlay. The roof itself has been absolutely fine - no leaks between boards or sign that they're holding onto water.
Water still pools a bit on the exterior roof (there's only a rise of about 2 inches front to back), as it does with all the other flat roofs on our road and there's a gutter at the lower end.
We did the roof all at our own cost as the neighbour is a pensioner and said she couldn't afford to contribute, but she came over to complain that there's water running down the inside of the walls on her side and that if there's a frost it's going to wreck the wall.
There's been lots of rainfall recently (our rear door, which has been there for years by the look of it, has swollen) and on our side the interior of the wall (red brick) is damp to wet. There's the odd trickle here and there on it. Her side is a lot wetter but there's no pooling on the floor on either sides.
The exterior boards that the felt folds onto are dry from the inside of the garage and so is the top of the brickwork, the boards seem dampish, but not like there's a leak in the roof itself, more just moist from all the rain.
Here side of the garage, which is set on a concrete plinth, butts directly on to her lawn which has no run-off and his really thick with water. There don't appear to be any air bricks and never have been. From a bracket on her side, it appears there used to be some guttering on her side, which has since gone.
She says it didn't used to be this way before we changed the roof (apart from the fact she hadn't used it in years because it had fallen in!).
Please could you let us know your thoughts on why it's happening, if it's preventable or just one-of-those-things and whether it is actually a problem in event of freezing/unfreezing etc!
Sorry for the long post, wanted to give as much detail as possible!
Any responses greatly appreciated!
Cheers
Hope you can help with this - probably a simple thing for someone with more experience!
We have a flat roof garage that is shared by our neighbour (interior centre wall, two single garage doors on front) with a flat felt roof.
Before we moved in over the summer, we knew that our neighbour's side had collapsed in several places so we made it a priority to change the whole roof. We did it ourselves with the help of a very experienced DIYer who's done loads of similar projects. We used plastic-backed chip board, full bitumen layer, felt underlay and overlay. The roof itself has been absolutely fine - no leaks between boards or sign that they're holding onto water.
Water still pools a bit on the exterior roof (there's only a rise of about 2 inches front to back), as it does with all the other flat roofs on our road and there's a gutter at the lower end.
We did the roof all at our own cost as the neighbour is a pensioner and said she couldn't afford to contribute, but she came over to complain that there's water running down the inside of the walls on her side and that if there's a frost it's going to wreck the wall.
There's been lots of rainfall recently (our rear door, which has been there for years by the look of it, has swollen) and on our side the interior of the wall (red brick) is damp to wet. There's the odd trickle here and there on it. Her side is a lot wetter but there's no pooling on the floor on either sides.
The exterior boards that the felt folds onto are dry from the inside of the garage and so is the top of the brickwork, the boards seem dampish, but not like there's a leak in the roof itself, more just moist from all the rain.
Here side of the garage, which is set on a concrete plinth, butts directly on to her lawn which has no run-off and his really thick with water. There don't appear to be any air bricks and never have been. From a bracket on her side, it appears there used to be some guttering on her side, which has since gone.
She says it didn't used to be this way before we changed the roof (apart from the fact she hadn't used it in years because it had fallen in!).
Please could you let us know your thoughts on why it's happening, if it's preventable or just one-of-those-things and whether it is actually a problem in event of freezing/unfreezing etc!
Sorry for the long post, wanted to give as much detail as possible!
Any responses greatly appreciated!
Cheers
