Hi All,
I want to insulate a wall in my garage whose other side is in the living room. The wall is 2.4 x 2.4 m. I was planning to use 1200 mm wide and 50 mm celotex insulation board to insulate the wall. To install the insulation board to the wall, I was thinking to fix three wooden batten to the walls and put the insulation board between the batten. I then sandwich the insulation board by fixing plasterboard to the wooden batten.
My question is whether I can use 63 mm wide wooden batten and therefore leave a 13 mm gap between the insulation board and the plasterboad that close the wall.
Thanks