I'm using rigid foam, specifically this to finish my basement. The foam is going directly onto the concrete, followed by standard framing and some variation of greenboard or paper-free drywall.
Reading the spec sheet for the foam, it says it requires an appropriate fire block. Maryland code seems to say that drywall is acceptable for this purpose, but I'm not entirely sure I'm reading the code correctly.
Do I need to do anything beyond just foam, frame, and sheetrock?