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Replacing old basement insulation with foam

jreclark | Posted in General Questions on

I am pulling off old “blanket” insulation (i.e. no vapor protection) from concrete basement walls and replacing it with polyiso boards prior to finishing the room.  The blankets were hung with ramset anchors, and removing them is leaving 2-3″ diameter craters (anchors are about 1.5″ deep).  Should I be filling these with hydraulic cerement, or are they shallow enough not to matter (8″ poured wall).

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  1. Expert Member
    Michael Maines | | #1

    jreclark, there is no reason to fill the voids in your situation.

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