Glazed wall construction system

摘要

A glazed wall construction system is disclosed in which all the interior metallic structural elements of the wall system are thermally isolated from the exterior air and from all other metallic components which are in contact with the exterior air. This isolation is accomplished by a separator (56) which covers a boss (36) provided on the structural frame member (34) and by a special fastener (42) which has a non-metallic head (64) molded on it so that it can fasten an exterior cover (40) to the system without serving as a conduit for heat.