I have a stand alone garage that is 24X 36. It is uninsulated. It has housewrap over the outside of the studs, and metal bands nailed in diagonals for rigidity. There is no sheathing but the hardboard siding. A cheap construction but it has held up for 21 years and still is square and looks good.
I would like to insulate the entire garage using fiberglass insulation, and since I use the area above joists for storage, I would prefer not to hang a ceiling with insulation above it. I would rather insulate walls and under the roof decking. I have no soffit vents, ridge vents or any kind of vents in the garage.
I know I am not supposed to allow the insulation to touch the decking, but I am wondering even if I did insulate without touching the decking that in the absence of soffit vents and a ridge vent I would have a terrific heat buildup during the summer causing the deterioration of the roof shingles. Or am I worrying about nothing?
I would like to insulate the entire garage using fiberglass insulation, and since I use the area above joists for storage, I would prefer not to hang a ceiling with insulation above it. I would rather insulate walls and under the roof decking. I have no soffit vents, ridge vents or any kind of vents in the garage.
I know I am not supposed to allow the insulation to touch the decking, but I am wondering even if I did insulate without touching the decking that in the absence of soffit vents and a ridge vent I would have a terrific heat buildup during the summer causing the deterioration of the roof shingles. Or am I worrying about nothing?