Design Criteria for Windows + Doors

Design Criteria for Windows and Doors
(Continued from p. 58 of the April 2008 issue of BD+C) For a full version of the article, click here.

New technologies, such as exterior sun control devices and high-performance glazing (particularly electrochromic glazing) are effective strategies as well. At the same time, Keleher points out, “Exterior sun-control devices are the most effective for controlling heat gain because they keep the sun out of the building entirely. However, there are issues of maintenance, operability in ice and snow, and cost that are hampering the growth of this strategy in the United States.”

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