Abstract:
A wall structure (10) formed from multipurpose laminated foam boards (18). The foam boards (18) include a thin dense outboard layer (40) and a thick less dense inboard layer (42). Further, the boards (18) include an integral self-sealing water barrier layer (48) on the outer surface of the board (18), which allows the board (18) to be nailed or screwed directly to the wall studs (12).