Looking to use plastic outlet boxes (NuTek One Gang Plastic Device Box - 18 cu-inches) for a home renovation. I've taken the exterior walls down to the studs and will run new 12/2 20A circuits with receptacles housed within the plastic outlet boxes.
This is an old house with 2x4 studs so would like to insulate with spray foam to increase the R-value. Any idea whether plastic device boxes can be used with spray foam insulation? Will the heat generated through the curing process possibly warp or otherwise compromise the plastic? AFAIK, these boxes have a 2-hour fire rating but may deteriorate at the 80-degree Celsius mark.
Also not sure whether the spray foam (polyurethane) may react with or compromise the plastic device boxes. Any insight or NEC / CEC code citations on this topic would be welcomed.
clarification As per @DMoore, what I meant to say is that I've removed the old gyprock from the walls so that I can replace the circa 1950 Sydney Steel plant wiring. "Fortunately" there was no insulation in the walls to worry about.
And yes, the spray foam insulation will be done 'professionally' - aka not me.