A generally flat structural panel for building construction includes a center insulating core such as of foam and opposed outer facings, or sheets, with one or more metal strips disposed within and extending the length of the panel and bonded to the panel's insulating core and to one of its...http://www.google.es/patents/US5842314?utm_source=gb-gplus-sharePatente US5842314 - Metal reinforcement of gypsum, concrete or cement structural insulated panels
Metal reinforcement of gypsum, concrete or cement structural insulated ...