| 摘要 |
<p>A slat assembly for a door includes a steel slat for the outside of the door and an extrusion of polyvinylchloride (PVC) serving as an insulation cover. A cavity in between the slat and the insulation cover is filled with insulation, the insulation and insulation cover providing a thermal break between the outside steel slats and the inside. The insulation cover is uniquely shaped to maximize strength and to secure it indirectly by way of a steel clip to the steel slat such that stress is minimized by accomodating differing coefficients of thermal expansion.</p> |
