Closed-cell foam is combustible just like wood. To protect it, it is required that we cover it with a thermal barrier like sheetrock or, when it is left unfinished, to cover it with a thermal barrier paint.
Closed-cell foam is combustible just like wood. To protect it, it is required that we cover it with a thermal barrier like sheetrock or, when it is left unfinished, to cover it with a thermal barrier paint.