I can't be the only person with this situation, as any extended house will presumably have similar:
We have a 1980's semi. It has timber framing with brick outer. There is insulation in the timber studwork.
There is also a significant extension, made of lightweight blocks internally with brick outer and cavity wall insulation.
We have knocked through between the extension and house and are rearranging two rooms upstairs. This this has highlighted that the now internal wall and the floor voids in both rooms in the extension are connected to the draughty cavity and cold loft.
I'd like to reduce gross air movement/draughts, whilst obviously maintaining ventilation.
(1) As a first step to help the bathroom, would it help to loosely stuff rockwool at the ends of the floor joists?
(2) I'd like to do more but don't want to risk bridging the cavity onto the timber framing, even though it is now inside the building envelope, or is this ok?
(3) I'd rather sort this out myself, but not ruling out professional help. Is there any kind of specialist who would know about this sort of thing? Builder, Architect, Ventilationist? Not sure what to look for.
Thanks.
We have a 1980's semi. It has timber framing with brick outer. There is insulation in the timber studwork.
There is also a significant extension, made of lightweight blocks internally with brick outer and cavity wall insulation.
We have knocked through between the extension and house and are rearranging two rooms upstairs. This this has highlighted that the now internal wall and the floor voids in both rooms in the extension are connected to the draughty cavity and cold loft.
I'd like to reduce gross air movement/draughts, whilst obviously maintaining ventilation.
(1) As a first step to help the bathroom, would it help to loosely stuff rockwool at the ends of the floor joists?
(2) I'd like to do more but don't want to risk bridging the cavity onto the timber framing, even though it is now inside the building envelope, or is this ok?
(3) I'd rather sort this out myself, but not ruling out professional help. Is there any kind of specialist who would know about this sort of thing? Builder, Architect, Ventilationist? Not sure what to look for.
Thanks.
