Sagging sheetrock in garage cieling, need to seal it to insulate.
Guys, I have a garage that is not finished. It was like that when I moved into the house. I am adding heat and insulating the walls/ceiling. The issue here is that due to dampness (I assume) the drywall is sagging a bit at the seams. This leaves gaps, and if I attempt to blow in insulation I will continually have that crap raining down on me.
I am function over form in the garage for sure, its my workspace. I don't want to mud and tape, and with the sagging it would look like crap.
So this begs the question.. how do I deal with the gaps? I have considered sealing all the seams from the top with expanding foam, laying down a plastic barrier. Or using strips of plastic and a staple gun to cover the holes.
My thought is a complete plastic barrier would just make the whole problem with the moisture worse. I used a very high end concrete sealer on the walls and the floor. Two walls are concrete, and underground. The garage doesn't feel all that damp and I leave a small window open on the garage all year when weather permits (IE above 40 degrees). The soffit in the attic is aluminum and vented all the way around the perimeter of garage. I was also going to install a gable vent (The front of the garage is pretty plain looking anyway).
Anyone have any nuggets of wisdom?
Thanks! - Evan
I am tall, and my attic over the garage is not. So the less time up there the better!