I am currently planning on insulating my shed this summer to allow year round usage.
My first step is to insulate the whole shed. - The walls and Ceiling are straight forward, I will be installing fiberglass batts, I'm just not sure which R-Value I should be using on either. - I will then cover them with vapour barrier, and tape (Tuck Tape) all the seams and staple holes. - The floor is another matter, I cannot access the underneath, nor do I know what the construction underneath is like. It is 3/4" plywood. Now do I cover it with vapour barrier, then 1" styrofoam panels, then 1/2 plywood, then I can finish it as I like. Or do I flip flop the vapor barrier and styrofoam.