B2020−Exterior Windows

Category Archives: B2020−Exterior Windows

The hazards of traditional wired glass

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For decades, traditional wired glass—with its crisscrossed wires creating diamonds or squares—was installed in buildings around the world. Thanks to its ability to remain intact even when broken, it was the first and, for years, only form of glazing available for fire door assemblies in schools, hospitals, and other buildings.

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The Value in Standardizing Door Schedules

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by Melany Whalin, CSI
Horror stories abound among hardware consultants who have been called in at the last minute to create hardware specifications that were needed yesterday, only to be given incomplete or inaccurate door schedules on which to base their specifications.

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Managing Daylighting with Shading

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Skylights are effective for allowing daylight into buildings. However, this needs to be properly managed to ensure spaces are not flooded with too much daylight and the risk of glare is mitigated. The amount of solar radiation coming through horizontal and inclined glazing is much greater than vertical façades, and this can cause significant heat gain issues.

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Planning for Effective Daylighting

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Building owners, architects, lighting designers, and engineers must work together so a project’s design can be maximized to bring in as much light without causing excessive glare or heat gain. While skylights work for a building’s top floor, most of the daylight in commercial building comes through windows.

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Making the NAFS short-form specification work

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Fenestration products are becoming undeniably more complex as performance expectations diversify and tighten. The same is true of the standards guiding both designers and specifiers of these products. The focus of these standards is the American Architectural Manufacturers Association/Window and Door Manufacturers Association/Canadian Standards Association (AAMA/WDMA/CSA) 101/I.S. 2/A440, North American Fenestration Standard/Specification for Windows, Doors, and Skylights (NAFS).

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