Tag Archives: glass

In or out?

While security windows and detention windows may seem to serve the same purpose, the major difference comes down to whether you intend to keep the threat in or to keep it out.

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Additional thoughts on the NAFS short-form specification

In the December 2014 issue of The Construction Specifier, Dean Lewis wrote about the North American Fenestration Standard/Specification for Windows, Doors, and Skylights’s (NAFS’) short-form specification. American Architectural Manufacturers Association/Window and Door Manufacturers Association/Canadian Standards Association (AAMA/WDMA/CSA) 101/I.S. 2/A440, serves as the basis for product certification as required by the International Building Code (IBC).

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Seeing through glass cracks

Cracking was observed in the exterior curtain wall glass on an early-1970s mid-rise building in the Midwest. As originally constructed, the curtain wall included single-glazed 5.5-mm (7/32-in.) thick bronze-tinted glass at all floors—except the uppermost level, which featured single-glazed 9.5-mm (3/8-in.) thick clear polished plate glass.

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