Abstract: Apparatus to protect glazed window or door panels against cold manifestation effective migration via glazing panel edge defined gaps, there being spaced apart outer, intermediate and inner glazing panels, the apparatus comprising holder structure projecting longitudinally endwise radially inwardly in said gaps, the holder structure being laterally sidewardly elongated, first synthetic resinous material retained by the holder structure to face laterally in a gap toward opposed intermediate panel edges, the material adjustably located at a position relative to the opposed intermediate panel edges characterized in that cold manifestation migrating through the gap via said material is confined to migrate in the spacing between the outer and intermediate panels, at opposite sides of the gap.

Abstract: A door structure, comprising a metallic door frame, having opposite sides, plastic paneling received on the frame in covering relation with at least one of the sides, the plastic paneling including paneling sections having abutting edges.

Abstract: A method of installing a glazing pane in a frame that includes providing the frame with structure defining elongated grooves including a lower horizontal groove and left and right upright grooves, the pane having upper and lower horizontal edges, and left and right upright edges, maneuvering the pane to position the pane left and right upright edges in the respective frame structure left and right upright grooves, for retention therein, the pane then being lowered to position the pane lower horizontal edge is the frame lower horizontal groove, for retention therein, and providing a horizontally elongated stop member, carried by the frame to extend in retaining relation with the pane upper horizontal edge, blocking access to that edge from the front side of the frame.

Abstract: In a framing system for attachment to parallel, spaced wall board terminals, the combination comprises a channel member having flanges and a cross-piece extending between the flanges, the flanges spaced apart for embracing the wall board terminals for connection to the terminals, one of the flanges being integral with the cross-piece, and the other of the flanges and the cross-piece having inter-fitting, interlocking elements.

Abstract: An integral drip system for thermally isolated straight in glazed curtain wall or window wall which will restrict water penetration into a building. The drip system includes at least one flange included for easy glazing replacement. This drip system reduces the number of parts required to assemble curtain wall or window wall systems.