Hi,
I need to improve the insulation of all my upstairs ceilings, but I can't access the roofspace far enough to add insulation there - the roof pitch is very shallow and the space towards the edges is full of trusses that are too small to get through. The only insulation at the moment is a couple of inches of now patchy and scruffy glass fibre that was installed at build in 1971.
So I want to find a means of adding insulation below the existing plasterboard ceiling. I can easily sacrifice 100mm of room height. I would prefer not to use a tile-type suspended ceiling as I want a smooth finish - these are living rooms, kitchen, bathroom, bedrooms. But the only insulated plasterboard that I can find seems to be for new-build, and not for old ceilings.
1. Can anyone please point me at suitable materials?
2. Is there a condensation / humidity issue that I need to address?
Any ideas will be gratefully received.
GLW
I need to improve the insulation of all my upstairs ceilings, but I can't access the roofspace far enough to add insulation there - the roof pitch is very shallow and the space towards the edges is full of trusses that are too small to get through. The only insulation at the moment is a couple of inches of now patchy and scruffy glass fibre that was installed at build in 1971.
So I want to find a means of adding insulation below the existing plasterboard ceiling. I can easily sacrifice 100mm of room height. I would prefer not to use a tile-type suspended ceiling as I want a smooth finish - these are living rooms, kitchen, bathroom, bedrooms. But the only insulated plasterboard that I can find seems to be for new-build, and not for old ceilings.
1. Can anyone please point me at suitable materials?
2. Is there a condensation / humidity issue that I need to address?
Any ideas will be gratefully received.
GLW