I am finishing out my shop and need help with the ceiling. The actual structure is one of those portable metal buildings (14'x28') with a gambrel style roof. I insulated the sides with r19 insulation and covered with enameled hardboard. I also insulated the ceiling by placing r19 paper backed fiberglass batting between the rafters (48" centers). I am now looking for a good clean way to cover up the sagging/swagging insulation suspended from my ceiling. As I understand, leaving the paper backing exposed is also a building code violation.
I tried the hardboard on the ceiling too but quickly stopped for 2 reasons: 1) It also sagged. 2) The day will come that I intend to move the structure so keeping the weight down is important to me.
I considered using the foil covered foam sheets but I read that this is also against building code. Sheetrock will be very difficult because of the gambrel style roof (as opposed to strictly horizontal) and I am mostly doing it by myself (could call a friend if I really really get in a jam). I don't want to use a suspended ceiling because I don't want to lose any remaining ceiling clearance. It is about 8' on the edges and
12' in the center.Consequently, my criteria- in order of importance- are adhering to proper building code regulations, weight, cosmetics (ability to withstand dust), durability, cost and the ability to put it up alone. What suggestions/thoughts does anyone here have?
Thanks in advance. Anthony