Hello,
Would be grateful of any advise that could be offered.
We have a croft house in the west highlands that has been in the family for some time. It was ravaged by fire a few years ago, and we are going through the process of getting it repaired and re-fitted out.
It is about 140 years old, solid rubble stone structure with two bedrooms upstairs. We are more or less returning it to its previous layout, with minor tweaks to bring it up to current regs - but dealing with traditional and makeshift building practices at the same time (slaps head in dispair)!
The building is on a sloping site, so the GF floor construction is formed from a combination of concrete slab and timber joist with vented solum (approx 800mm deep). We are not keen to fill up the solum with hard core and concrete over as we are concerned it might cause bunding and destabalise the existing rubble stone walls. We are also concerned that efflorescent salts will start rising in the stone work and cause future problems, my preference is always to let a building breathe.
My very long winded introduction leads me to my question - How do you detail the junction between a replacement suspended timber floor and existing concrete slab? Annoyingly it is not a clean break where one stops and the other begins (see attached sketch).
We can't raise the floor as the existing door heads are already low and in the 600mm thick rubble stone wall, so raising these is going to be a nightmare. We are struggling to achieve 2m head clearance on the stair due to the roof height which is dictated by existing gables.
Sorry for being so wordy! I have exhausted google and cannot find anything on this subject.
Thanks in advance,
Sarah
Would be grateful of any advise that could be offered.
We have a croft house in the west highlands that has been in the family for some time. It was ravaged by fire a few years ago, and we are going through the process of getting it repaired and re-fitted out.
It is about 140 years old, solid rubble stone structure with two bedrooms upstairs. We are more or less returning it to its previous layout, with minor tweaks to bring it up to current regs - but dealing with traditional and makeshift building practices at the same time (slaps head in dispair)!
The building is on a sloping site, so the GF floor construction is formed from a combination of concrete slab and timber joist with vented solum (approx 800mm deep). We are not keen to fill up the solum with hard core and concrete over as we are concerned it might cause bunding and destabalise the existing rubble stone walls. We are also concerned that efflorescent salts will start rising in the stone work and cause future problems, my preference is always to let a building breathe.
My very long winded introduction leads me to my question - How do you detail the junction between a replacement suspended timber floor and existing concrete slab? Annoyingly it is not a clean break where one stops and the other begins (see attached sketch).
We can't raise the floor as the existing door heads are already low and in the 600mm thick rubble stone wall, so raising these is going to be a nightmare. We are struggling to achieve 2m head clearance on the stair due to the roof height which is dictated by existing gables.
Sorry for being so wordy! I have exhausted google and cannot find anything on this subject.
Thanks in advance,
Sarah
