Heat-resistant assembly - for use as fire or flame barrier refractory door or window

摘要

Heat-resistant construction unit comprises >=2 panels, >=1 of which is vitro-ceramic material (i.e. glasslike material subjected to such thermal treatment that controlled crystallisation occurs, e.g. by the addition of specific nuclei in specific quantity). Esp. the panels are bonded together so as to leave an interspace between them.