Spacer for insulated windows having a lengthened thermal path

Details Spacer for insulated windows having a lengthened thermal path Spacer for insulated windows having a lengthened thermal path

E - Fixed Constructions

06

B

E06B 3/667 (2006.01) E06B 3/663 (2006.01)

Patent

CA 2314053

A spacer frame bar for insulated windows or other insulated glass panels. The bar includes a tubular spacer member having first and second side webs for engaging the spaced apart glass panes, and upper and lower webs spanning between the side webs. The upper web is provided with a series of vertical corrugations, which serve to increase the length of the thermal conductive path across the upper web. The corrugations are also arranged so that only the upper edges thereof are exposed to sunlight passing through the window, thereby minimizing thermal gain due to absorption of solar radiation. Staggered rows of slits may be formed in the channels of the corrugations to as to further increase the length of the conductive path. The channels may also be filled with an insulating material, such as a resilient foam material. The invention also provides a two- piece construction in which the top web clips onto the upper edges of the side webs.

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