Hello
I am in the process of adding insulation and have had to do it from the inside. Now I'm going to put up boards on the slanted ceiling and on the inner ceiling. In the inner ceiling, I first thought of putting up panel boards and then attaching the boards to these.
The question is whether I need to do the same in the slanted ceiling, or will the boards be able to withstand the weight of the insulation? I thought, so that the slanted ceiling doesn't become wavy. (The slanted ceiling is almost 45 degrees)
I plan to put up both OSB and plasterboard in the slanted ceiling, so that I can easily screw up shelves, etc.