My shop has a steel roll-up "garage" door that faces a blistering sun for several hrs/day. I'm determined to insulate it. The easiest way I see is to slap some styrofoam shhet insulation onto it.
I can get 4' X 8' sheets at Big-Box for a good-enouhg price, but need to trim the sheets down to ~ 44" X 22" to fit into the recesses of the door.
What's the best way to cut 1-1/2" or 2" styrofoam sheets? I don't have a "hot wire" cutting tool.
Thanks a heap,
--Zz