The following exterior boundaries of superstructures and deckhouses that contain accommodation, service, and control spaces, except wheelhouses, must be insulated to "A-60" Class:
46 C.F.R. § 32.56-20
The following exterior boundaries of superstructures and deckhouses that contain accommodation, service, and control spaces, except wheelhouses, must be insulated to "A-60" Class:
46 C.F.R. § 32.56-20