Building Code Council members debate IRC 'multiplex' appendix: stories, separations, sprinklers and shared spaces

Members of the state Building Code Council spent most of their Aug. 26 meeting detailing a proposed appendix to the International Residential Code that would permit ‘‘multiplex’’ buildings — residential buildings of up to six dwelling units and up to three stories — and debating definitions, fire separations, whether units may share interior circulation or common spaces, sprinkler requirements, and whether multiple multiplex buildings may be attached together.