Hello.
My kitchen has a side extension with a pitched roof about 25 years ago, before we moved in. Upon investigation there is minimal insulation above the plastered ceiling.
Above the "existing" / "original" kitchen ceiling is a bathroom.
The roof space above the extension is well ventilated and very drafty in winter. It looks like the ceiling under the original ceiling has been lowered by about 6 inches to match the extension. There is no insulation above this part of the ceiling.
The kitchen is cold and leaks heat like a bald head in winter!
To save pulling the existing ceiling down my plan is to insulate from below, as we have ample height. I also have a boxed in beam that is lower than the ceiling and this basically splits the ceiling in half. This is about 150mm lower and so I also hope to make the ceiling one level and flush across the whole room.
My proposal is to;
a) use 150mm loft insulation and PB over, or
b) use loft insulation plus 25mm kingspan backed PB. or
c) use 150mm kingspan backed PB - but very expensive!
Any advice would be appreciated, especially thoughts on any vapor barriers etc or condensation control needed.
Thanks in advance
C.
My kitchen has a side extension with a pitched roof about 25 years ago, before we moved in. Upon investigation there is minimal insulation above the plastered ceiling.
Above the "existing" / "original" kitchen ceiling is a bathroom.
The roof space above the extension is well ventilated and very drafty in winter. It looks like the ceiling under the original ceiling has been lowered by about 6 inches to match the extension. There is no insulation above this part of the ceiling.
The kitchen is cold and leaks heat like a bald head in winter!
To save pulling the existing ceiling down my plan is to insulate from below, as we have ample height. I also have a boxed in beam that is lower than the ceiling and this basically splits the ceiling in half. This is about 150mm lower and so I also hope to make the ceiling one level and flush across the whole room.
My proposal is to;
a) use 150mm loft insulation and PB over, or
b) use loft insulation plus 25mm kingspan backed PB. or
c) use 150mm kingspan backed PB - but very expensive!
Any advice would be appreciated, especially thoughts on any vapor barriers etc or condensation control needed.
Thanks in advance
C.