this post was submitted on 19 Oct 2023
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How would you seal this gap under central boiler hydronic baseboard heaters that only get warm, not hot. (sh.itjust.works)
submitted 1 year ago by SoySaucePrinterInk@sh.itjust.works to c/homeimprovement@lemmy.world
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[–] noride@lemm.ee -3 points 1 year ago* (last edited 1 year ago)

You're absolutely begging for moisture problems if you put spray foam in there. It should be open exactly like it is, albeit cut closer to the wall. That really won't stop bugs anyway, you're much better off treating the perimeter and plugging exterior access holes.