Abstract: A wallboard structure is disclosed having a metal sheet attached by means of an adhesive to a wallboard panel, such as a gypsum panel. The wallboard structure is attached to the framing studs of a building with the metal sheet adjacent the studs. The metal sheet resists in-plane or shear loads imposed of the framing structure of the building due to exterior environmental conditions, and thereby helps keep the wallboard panel from cracking.

Abstract: A curtain wall clip for coupling a curtain wall framing structure to the floor structure or load bearing structure of a building is disclosed. The curtain wall clip includes a flat plate portion with two closely spaced oppositely depending ears, each ear having an elongated slot therein. The plate portion of the curtain wall clip is attached to the floor structure. Spacers are inserted into the slots, and the ears and spacers are attached to the curtain wall frame structure by screws. The spacers and screws hold the curtain wall clip is sliding engagement with the frame.