Just a quick post, I always appreciate second or third opinions.
I have a 260 year old fen cottage, Clay brick, english bond, 9'' solid walls and a lime screed. I was planning on flattening the cottage and replacing with an identical cottage, single story link to a new mock barn conversion.
The planners have dug their heels in and I now have to retain the cottage.
The limecrete floor has in the past has had a cementitious layer put on top, this has caused raising and efflorescence coming through the floor. My initial reaction was to dig out the floor, instal a dpm, insulate concrete and screed but this in turn will have an adverse affect on an already fragile structure(no foundations)
there is a 1960's addition to the rear of the cottage which has a step up of around 80mm from the cottage floor.
this is what i propose, bitumen the floor float a timber floor up to the extension level, Stud out from the wall 25mm and use 75 mm timbers in the stud frame so i can get celotex between the stud, vapour barrier (condenstation) and plasterboard. I need to retain heat in this old beast.
I understand that sealing the floor with bitumen will push the moisture out towards the walls, but as long as i keep the wall stud away and haveno bridging fixtrures into the wall io cant see it being a problem.
I welcome other alternatives but time is against me as i need to get the cottage habitable while i have the link and barn built.
Many thanks, J
I have a 260 year old fen cottage, Clay brick, english bond, 9'' solid walls and a lime screed. I was planning on flattening the cottage and replacing with an identical cottage, single story link to a new mock barn conversion.
The planners have dug their heels in and I now have to retain the cottage.
The limecrete floor has in the past has had a cementitious layer put on top, this has caused raising and efflorescence coming through the floor. My initial reaction was to dig out the floor, instal a dpm, insulate concrete and screed but this in turn will have an adverse affect on an already fragile structure(no foundations)
there is a 1960's addition to the rear of the cottage which has a step up of around 80mm from the cottage floor.
this is what i propose, bitumen the floor float a timber floor up to the extension level, Stud out from the wall 25mm and use 75 mm timbers in the stud frame so i can get celotex between the stud, vapour barrier (condenstation) and plasterboard. I need to retain heat in this old beast.
I understand that sealing the floor with bitumen will push the moisture out towards the walls, but as long as i keep the wall stud away and haveno bridging fixtrures into the wall io cant see it being a problem.
I welcome other alternatives but time is against me as i need to get the cottage habitable while i have the link and barn built.
Many thanks, J
