| 摘要 |
A composite thermally insulated architectural frame member is provided which is comprised first metal section, a second metal section and a performed thermal br eak section. The first metal section has a longitudinal inner channel. The second me tal section has an extension positioned within the channel of the first section in a predetermined spaced apart relationship from the first metal section. The second metal section is positioned in a longitudinal channel in the thermal break section in a spaced apart relationship from the first metal section. The composite metal frame membe r is assembled by inserting the thermal break section laterally into the channel of t he first metal frame section and then inserting the second metal frame section laterally the channel in the thermal break section. The dimensions of the respective sections are selected so the sections snap lock together.
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