Garage ceiling insulation

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aberdeeneuan

Original Poster:

1,345 posts

179 months

Thursday 1st November 2012
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We have a pretty typical 1930s style house, garage built into the house with a room above it. The trouble is there is naff all insulation in the ceiling of the garage or underfloor in the room above and it gets really cold in there, so I'm looking at sorting it out before it gets too cold.

The ceiling currently has plasterboard on it but the fixings have failed in a couple of places so it's falling down, so rather than attack from above I want to do this from below. What's the best way of doing this? What insulation should I be using?

I'm assuming something like Cellotex with new plasterboard sheets below it? I also want to use fireboard (is that the right wording?) as it's my sons bedroom that's above it, are there anything I should know about it before attempting this?

aberdeeneuan

Original Poster:

1,345 posts

179 months

Thursday 1st November 2012
quotequote all
mk1fan - thanks very much for the detailed description!

One issue I have thought of which it's made me consider is that the fuse board is in the garage and all the cables go up into the ceiling and route from there. Presumably if I board as close as I can to the cables and then use the sealant that would help with sealing them off?

aberdeeneuan

Original Poster:

1,345 posts

179 months

Tuesday 2nd September 2014
quotequote all
I'm sure he'll answer - but as the OP I'd add this made a huge difference to our room! We did exactly as described, and it worked a treat.

Only thing I'd add - the boards weigh an absolute ton!