My brother has a link detached bungalow (Single garage linking each bungalow). At present the neighbours garage is the other side of the type B party wall. They want to raise the garage roof level (which I don't think they can onto a type B party wall) and extend their kitchen into their garage with a dining area.
He's very worried because his bedroom is against this party wall, but because it's only a garage the other side at present there's no noise. If the work goes ahead, he will have a noisy working/social area the other side of bedroom wall.
If he agrees to the work, what sort of soundproofing should he be insisting on? I don't think just letting the builder put some rubber backed plaster board is going to be enough. I think a professionally installed soundproofing system is needed, but what should he be insisting on?
Also, to make the conversion work they need to raise the garage roof because it is quite low and the floor level of garage will need to be raised to match the floor level in their house. I've told him he could poss stop the whole project because they can't raise the garage roof level where it joins onto a type B party wall. They are only allowed to work within the existing enclosure ie. the roof and front and rear elevations of existing garage.
He's very worried because his bedroom is against this party wall, but because it's only a garage the other side at present there's no noise. If the work goes ahead, he will have a noisy working/social area the other side of bedroom wall.
If he agrees to the work, what sort of soundproofing should he be insisting on? I don't think just letting the builder put some rubber backed plaster board is going to be enough. I think a professionally installed soundproofing system is needed, but what should he be insisting on?
Also, to make the conversion work they need to raise the garage roof because it is quite low and the floor level of garage will need to be raised to match the floor level in their house. I've told him he could poss stop the whole project because they can't raise the garage roof level where it joins onto a type B party wall. They are only allowed to work within the existing enclosure ie. the roof and front and rear elevations of existing garage.
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