Hi All,
I'd appreciate some advice please
I am replacing a window cill in an old house it has a 75mm ish cavity, there no cavity wall closures so will stuff in a bit of spare celotex I have left over.
Looking down the cavity it's above the first floor and under the bedroom window, it has cavity wall blown wool type cavity insulation many years ago (brick and block wall), which has either not been done 100% or settled,, there is a gap of a few feet, I cant get celotex all the way down as it has wall ties...
An insulation firm suggested I cannot top this up and I need to suck it all out and have the cavity wall insulation re done which I don't really want to do.
I have some left over Knauf Ekoroll Loft Insulation which is a sort of re-used glass fibre roll type material,,
Can I just push some of this in before I add the new window cill is this ok or does it need to be special waterproof stuff??
Thanks
I'd appreciate some advice please
I am replacing a window cill in an old house it has a 75mm ish cavity, there no cavity wall closures so will stuff in a bit of spare celotex I have left over.
Looking down the cavity it's above the first floor and under the bedroom window, it has cavity wall blown wool type cavity insulation many years ago (brick and block wall), which has either not been done 100% or settled,, there is a gap of a few feet, I cant get celotex all the way down as it has wall ties...
An insulation firm suggested I cannot top this up and I need to suck it all out and have the cavity wall insulation re done which I don't really want to do.
I have some left over Knauf Ekoroll Loft Insulation which is a sort of re-used glass fibre roll type material,,
Can I just push some of this in before I add the new window cill is this ok or does it need to be special waterproof stuff??
Thanks