I have a garage, built in '73, with an exterior brick wall and about 95 mm of insulation (fiberglass) and drywall on the inside. Now it will be converted into a workshop, and I want a comfortable temperature year-round, meaning in winter, I shouldn't need to wear outer clothing there. My dad thinks I should simply put up a type of drywall with 50 mm insulation on the back against the existing wall. I'm more inclined to take down the drywall, add framing, additional insulation, and install a vapor barrier before OSB and drywall. My dad's argument is that it's awkward to the point of impossible to make the vapor barrier tight, but it shouldn't be that impossible. Or... The question is, simply: what do you think?
Do you need a vapor barrier at all? You probably have an air gap between the brick and the insulation. Plus, the air is not as humid in a garage as in a residential house. Besides, the brick doesn't mold anyway.
I would guess you can do exactly as you described yourself. Put up the studs and add a bit more insulation, then onto OSB + drywall.
I would guess you can do exactly as you described yourself. Put up the studs and add a bit more insulation, then onto OSB + drywall.
Click here to reply