A well-established building system
SIPs have a long history in the U.S. housing industry. Early versions were developed in the mid ’30s at the Forest Products Laboratory, and the first foam-core panel was produced more than a half century ago. SIPs have never quite broken into the housing mainstream, but they offer a number of advantages over conventional stick framing.
SIP construction is more expensive than standard frame construction, but because the resulting building envelope is tighter and insulation values potentially higher, using them may make it possible to downsize heating and cooling equipment. Lower operating costs over the life of the building should mean a net gain over conventional construction.