Wondering about using foil-faced polyisocyanurate foam board between studs in a basement sauna project
Jsmoffet
| Posted in Green Products and Materials on
Wondering about using foil-faced polyisocyanurate foam board between studs in a basement sauna project.
Should I worry about off-gassing?
Is this safe?
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Replies
John,
If you want to insulate between the studs, you should probably choose fiberglass batts or mineral wool batts.
If you want to install polyisocyanurate foam, you should install the foam as a continuous layer, on one side of the stud wall, rather than cutting the polyiso into thin strips and inserting the strips between the studs.
Of course, you could do both -- you could install batts between the studs as well as a continuous layer of polyiso on one side of the studs.
In any case, I don't think you have to worry about off-gassing. The polyiso should be covered with a layer of 1/2-inch gypsum wallboard in any case for fire safety. You can cover the gypsum drywall with cedar boards if you want.