Good evening all,
Just planning some works in our house and need to work out how this cavity should be properly dealt with. We will be replacing the patio doors and a builder will be coming in to sort the screed (with ufh) as well as an extension elsewhere on the house. However, the doors will need to be replaced ASAP with flood resistant French doors by a specialist company so we might have to get this sorted sooner than the other works.
There was screed over this to start with but clearly had been a repair in the past (house is 1980s) with 'expamet' set into it, assuming to span the cavity. This had all blown though and the problem was probably exacerbated by a flood that we had last year, reparations of which these are all part of.
Can anyone please advise how this cavity should be properly sealed in the most thermally efficient way? The slab is obviously at DPC level so I assume it will need DPC extending over it and then some sort of cavity closer? Should I clear out the bottom of the cavity before doing anything? It's quite wet and muddy down there. I'm not sure what difference it makes but I think the flood doors will need to be fitted to the outer leaf to keep any gaps in the cavity (vertically too) within the protection envelope of the door.
Thanks for any advice in advance.
Just planning some works in our house and need to work out how this cavity should be properly dealt with. We will be replacing the patio doors and a builder will be coming in to sort the screed (with ufh) as well as an extension elsewhere on the house. However, the doors will need to be replaced ASAP with flood resistant French doors by a specialist company so we might have to get this sorted sooner than the other works.
There was screed over this to start with but clearly had been a repair in the past (house is 1980s) with 'expamet' set into it, assuming to span the cavity. This had all blown though and the problem was probably exacerbated by a flood that we had last year, reparations of which these are all part of.
Can anyone please advise how this cavity should be properly sealed in the most thermally efficient way? The slab is obviously at DPC level so I assume it will need DPC extending over it and then some sort of cavity closer? Should I clear out the bottom of the cavity before doing anything? It's quite wet and muddy down there. I'm not sure what difference it makes but I think the flood doors will need to be fitted to the outer leaf to keep any gaps in the cavity (vertically too) within the protection envelope of the door.
Thanks for any advice in advance.
