Steel Beam Pocket Insulation Help
I’ve researched this site and can’t find an answer to my particular situation.
I’m insulating our basement walls with 3” of Polyiso. The cement walls are poured and have 12” exposed above grade. No water issues.
I’m stumped as to how to insulate the steel beams sitting in the cement wall pockets. Each pocket is 6 to 8 inches wider than the beams. Exterior above grade insulation is not an option and they sit in their pockets with a gap behind them of maybe a 1/4” at the exterior side.
Should I insulate the pocket with the fiberglass insulation they originally had, or spray foam it, or leave them exposed, or something else?
Secondly, directly below the pockets, each steel beam has a vertical steel plate with bolts securing the beams to the basement wall. I was going to cover it with Polyiso. Is that acceptable?
Any recommendations would be much appreciated. Thank you
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