Closed-cell foam in an unfinished basement in Climate Zone 4/5 (NYC) — 2″ foam — Is it enough?
Just been given a quote for 2″ CC in our 1480sq ft basement for $1000. I said I didnt want to put any batts etc inside when I frame the walls eventually
Now Martin says R19 for a basement, the installer said “well you lose the dollar/R value, when you go over 2”
I said I wanted 3″ for the R19.
Is it worth the extra, Im tossing it up and siding on Martins side of the more the R value the less heat Id have to put into it but also the fact that the 1st floor floors wont be so cold in winter (there is R19 in the floor joists now)
Any feedback is welcome
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