I'm going to build my own shed. The floor will be framed using 2x4 pressure treated timbers with an 18mm WPB ply as the deck. I plan to insulate the walls and roof using rockwool.
The wall cavity will only be 4in deep between the plasterboard on the inside and the exterior sidings. Is this enough insulation to be worth it?
I also intend to insulate between the floor joists, this time using XEPS foam insulation. Is it simply a case of cutting and wedging/gluing the foam between the joists? Is the foam durable enough to be left exposed on the underside of the floor (the floor will be raised another 4in on skids sitting on a concrete slab patio). Is having the foam in contact with the joists and ply likely to create moisture problems with the floor joists or ply?
The wall cavity will only be 4in deep between the plasterboard on the inside and the exterior sidings. Is this enough insulation to be worth it?
I also intend to insulate between the floor joists, this time using XEPS foam insulation. Is it simply a case of cutting and wedging/gluing the foam between the joists? Is the foam durable enough to be left exposed on the underside of the floor (the floor will be raised another 4in on skids sitting on a concrete slab patio). Is having the foam in contact with the joists and ply likely to create moisture problems with the floor joists or ply?