Curtain Wall and Glazed Assemblies

Category Archives: Curtain Wall and Glazed Assemblies

A deeper look at ‘breathable’ curtain walls

Glass-clad buildings are often designed to be airtight for energy efficiency, but some design experts feel new thinking on ventilation could have important benefits for indoor air quality (IAQ). Photo © BigStockPhoto/Oleksiy Mark

Glass-clad buildings are often designed to be airtight for energy efficiency, but some design experts feel new thinking on ventilation could have important benefits for indoor air quality (IAQ).
Photo © BigStockPhoto/Oleksiy Mark

In the August 2013 issue of The Construction Specifier, we included a Horizons column—“Introducing ‘Breathability’ to Curtain Walls—by Raymond Ting, PhD, PE.

As a complement to our more straight-ahead technical features, Horizons examines still-emerging technologies and new ways of assembling buildings. In this particular case, Ting dealt with the issue of glazed assemblies and their impact on both energy efficiency and indoor air quality (IAQ). He acknowledged building codes advocated for airtightness and air barriers, but called for new thinking about how ventilation—a good dose of fresh air, in other words—might be more critical for the occupants living or working inside.

Due to space constraints, a short sidebar article was kept out of the magazine. For a further look into the rationale behind Ting’s call for breathable curtain walls, it is included here. Continue reading