To Insulate Kitchen Flat Roof or Not That is the Question
Posted: Fri Aug 08, 2014 11:46 am
Hi DIY Gurus,
I've stripped my kitchen ceiling as part of renovation work and noticed that we have no insulation under our flat roof.
I would like to fit insulation using the cold roof method but building regulation states that it can cause serious condensation issues if I don't have ventilation from opposite sides.
I only have one side ventilation and will be unable to create ventilation on the other side. Is it possible to insulate my roof or should I just give it up?
I thought to do the following but I am no expert and I don't know if the single side ventilation will create problems which I'll better avoid.
If it is possible can I do the following or is there a better way?
1. Fit 100 mm Kingpsan at the bottom of the Joist. (This will leave 50mm gap on top of the insulation).
2. Fit 2 layers of vapor barrier (1 layer from west to east and 1 layer from north to south)
3. Fit fire resistant plaster board.
4. Skim it all
Many thanks for your input!
I've stripped my kitchen ceiling as part of renovation work and noticed that we have no insulation under our flat roof.
I would like to fit insulation using the cold roof method but building regulation states that it can cause serious condensation issues if I don't have ventilation from opposite sides.
I only have one side ventilation and will be unable to create ventilation on the other side. Is it possible to insulate my roof or should I just give it up?
I thought to do the following but I am no expert and I don't know if the single side ventilation will create problems which I'll better avoid.
If it is possible can I do the following or is there a better way?
1. Fit 100 mm Kingpsan at the bottom of the Joist. (This will leave 50mm gap on top of the insulation).
2. Fit 2 layers of vapor barrier (1 layer from west to east and 1 layer from north to south)
3. Fit fire resistant plaster board.
4. Skim it all
Many thanks for your input!