Roof Vents and Party Wall Act

thorpe · 2 Oct 2009

Hi All

Can anyone give me a suggestion we are currently extending our property but we are having an issue with our neighbours extension which has air bricks from a flat roof that vent out into our area.

As we are looking to build up, our build will block the vents on our side which will leave the vents only the the opposite side of their property.

Are there any solutions, is the only way to leave a large gap between the properties.

Note. our house is a semi detached

cmother1 · 3 Oct 2009

If your neighbours are venting their property on your side of the boundary line I can't see what right they have to do this. Was their work done under building control?
As ever a diagram would help...

freddiemercurystwin · 3 Oct 2009

Is the outer face of your neighbours extension wall built on the boundary or over or inline it or behind it or what? Exact dimensions please.

thorpe · 4 Oct 2009

Hi I thought a picture would show it the best, our neighbours extension wall is the boundary wall as far as I can see. The previous owners of our house built an conservatory against it which we have taken down to do our build you can still see the plaster on the wall at the moment. If you need any more pictures or drawns let me know.

I think I have up loaded the picture right let me know if you can't see it

^woody^ · 4 Oct 2009

The picture has not loaded, but it does not matter

If you are using the Party Wall Act, then as part of any award, you will have to deal with the venting situation of the adjoining owners roof. This may be complex to do, but whatever the solution you will have to do it and pay for it. Alternatively just set the wall back a bit

If you are not using the PWA, then you can build straight up keeping to the boundary line and it will be then up to the neighbour to sort out his vent arrangement.

You only really need to leave a small 10-15mm gap though and his roof will vent as it is

freddiemercurystwin · 4 Oct 2009

View media item 15409

thorpe · 4 Oct 2009

Thanks Woody

I am not sure we fall withing the PWA as we are building our own wall and will no longer be sharing a wall. Is my under standing correct that if we build and leave 10 -15 mm gap they can not object, we were going to offer to put lead flashing across the top of the two properties, to stop any water going between the two therefore avoid damp.

regards

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Roof Vents and Party Wall Act

thorpe

cmother1

freddiemercurystwin

thorpe

^woody^

freddiemercurystwin

thorpe

DIYnot Local

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