| 摘要 |
A window assembly is formed of an inside facing vinyl extrusion portion and an outside facing aluminum extrusion portion which are interconnected by resilient snap-fit barb-like connectors integral with each extrusion, thus forming a composite type construction. The metal outside facing portion provides strength, durability and weather resistance; while the vinyl inside facing portion improves thermal insulation characteristics, reduces or eliminates sweating, and enables color, pattern, and other design aesthetics conveniently to be included in the window assembly. The window assembly may be virtually any type, such as the fixed light (window glass) type, sliding type, double hung type, picture type, etc.
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