Patent ID: 6895718

Claim:
A clip for use in affixing a construction unit within an aperture in a building structure, the construction unit having a frame and a flange projecting laterally from the frame exterior to the aperture, the clip comprising: a thin tab for extending between the frame and a side of the opening in a direction at right angles to the flange and toward an interior of the building structure, the tab having a transverse substantially parallel-sided groove at an exterior end thereof for receiving the flange, the transverse groove oriented to support the tab at right angles to the flange, having a depth greater than a thickness of the tab, and having a mouth substantially in a plane of the tab; and one or more attachment points at an interior end of the tab, the one or more attachment points including one or more apertures, one or more projections, or one or more apertures and one or more projections.