Building facade or roof cover panel installation has panels attached in two adjacent planes to sub-structure by hooks

摘要

A building facade or roof cover has rectangular panels which are attached to the sub-structure by hooks. The hook engages at one end with the sub-structure and at the other with a pocket in the panel rear face. The panels (2, 3) are installed in front and rear planes. The panels aligned in each respective plane are in-line with each other and overlap the other plane. also claimed are commensurate installation hooks.