I'm thinking of converting my brick walled corrugated iron shed into a changing room for winter hot tub use. I was advised by a friend that the first thing i should do is insulate the roof using glass fibre insulation (the yellow fluffy stuff in the loft) and a simple Plywood ceiling but im not sure how i would stick it to the existing roof (dimensions 170cm x 147cm). So..... how should i insulate the roof of my future changing room????
What is he using glue on? Buy rolled fiberglass insulation, install it between the rafters and wall studs...paper side in. You can cover the walls and ceiling with drywall, OSB, plywood if you wish. You do realize that insulating your shed isn't going to make it much/any cooler don't you? You will need an air conditioner for that, but the insulation will help keep the AC in.
If the roof has joists, which I imagine it would, you would put the bats of insulation into those spaces... these can then be stapled into place or if that isn't possible, you can run a wire between the joists to hold the bats in place. If using faced insulation be sure to put the paper side towards the warm area (inside) to prevent condensation.
