Insulate shuttle bus roof necessary?
In my 2012 shuttle bus I’m working on gutting it now.
There is a fiberglass roof, 1.5” of fiberglass laminated cardboard, then another 1/8” inch of fiberglass for the ceiling.
. There’s 3 or 4 layers of fiberglass on my ceiling for about 2.5” of materials.
My ceiling is only about 5’10”. I really don’t want to take anymore precious head room.
I know fiberglass makes for great insulation. My question is would anything I replace it with be inferior to what is in there now?
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