I have a 11x17 feet 3 season gazebo fully enclose on a deck. Sitting on deck board and finish the inside with LVT. I want to insulate the floor. Though of Rockwool for 2x8 but cant find any would going with 2x6 will make a big difference? I though of covering the wool with 1" rigid board to close it off and limit rodent. I m in Quebec Canada so winters are cold.
The walls are aluminium, i though I could insulate them with 1.5 " rigid board and cover with 1/2" pine. Should I put a vapor barrier in between?