Forum Discussion
GB590
May 20, 2018Explorer
I just did some quick looking at the hardware store website. Seems I can get a max of about R-6 out of a 1" thick rigid board for $20 a sheet. I can do denim or fiberglass batt at R 6.7 at 1.8" for denim or 2" thick for fiberglass (I will have to try and cut it thinner or just squish it which will reduce the R factor either way) for $5 a roll for fiberglass or $11 a roll for denim.
It seems I will most likely just put the batting back in rather than deal with the foam board. Seems like the insulation difference is negligible, and the cost makes more sense to go that way. The only advantage to the board I can see is it is much better for moisture absorbance.
It seems I will most likely just put the batting back in rather than deal with the foam board. Seems like the insulation difference is negligible, and the cost makes more sense to go that way. The only advantage to the board I can see is it is much better for moisture absorbance.
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