We built a single storey extension with pitched roof on the rear of our terrace a couple of years ago. Our neighbours are building the same (albeit with a flat roof) and have left a gap of no more than 100mm between the extensions.
They have extended the side of their flat roof over the boundary line onto the side wall of our extension. So at the end of the extension, the roof is above the level of our pitched roof and at the part where it adjoins their house it is below our roof level.
My concern is that as flat roofs have a tendency to need recovering every ~10 years that when it starts to leak/the wood rots, I will get water running down the side wall of our extension causing damp problems.
Ive spoken to the main builder who doesn't really speak any English or share my concerns and says that the roofs have to be joined according to building regs. I'm not convinced this is the case but either way feel that they should have at least told me they were joining the roof to our property and crossing the boundary line rather than waiting for me to notice!
I'm a little concerned by the standard of work throughout and while i admit i have no idea about how quick an extension could be built, its certainly been thrown up in a couple of weeks where ours took a couple of months to get ours done and is certainly not of the same quality (I know this doesn't necessarily mean it's not built well enough).
The house is a rented house and all is done to maximise profits and I'm not sure whether much remedial work will ever be done after this so I want to make sure I don't have issues with damp later on. Obviously if they cut the roof back and have it flush on their building there will be a gap between the properties so maybe this is worse as rain etc can get in? Though I feel as air can circulate this is preferential and how properties are usually built anyway.
All I know so far anyway is that it is an illegal structure as building control have not been notified about the work or been asked to visit the site at any time.
Thanks for any advice.
They have extended the side of their flat roof over the boundary line onto the side wall of our extension. So at the end of the extension, the roof is above the level of our pitched roof and at the part where it adjoins their house it is below our roof level.
My concern is that as flat roofs have a tendency to need recovering every ~10 years that when it starts to leak/the wood rots, I will get water running down the side wall of our extension causing damp problems.
Ive spoken to the main builder who doesn't really speak any English or share my concerns and says that the roofs have to be joined according to building regs. I'm not convinced this is the case but either way feel that they should have at least told me they were joining the roof to our property and crossing the boundary line rather than waiting for me to notice!
I'm a little concerned by the standard of work throughout and while i admit i have no idea about how quick an extension could be built, its certainly been thrown up in a couple of weeks where ours took a couple of months to get ours done and is certainly not of the same quality (I know this doesn't necessarily mean it's not built well enough).
The house is a rented house and all is done to maximise profits and I'm not sure whether much remedial work will ever be done after this so I want to make sure I don't have issues with damp later on. Obviously if they cut the roof back and have it flush on their building there will be a gap between the properties so maybe this is worse as rain etc can get in? Though I feel as air can circulate this is preferential and how properties are usually built anyway.
All I know so far anyway is that it is an illegal structure as building control have not been notified about the work or been asked to visit the site at any time.
Thanks for any advice.