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Old Posted Feb 5, 2013, 6:53 PM
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Masonry curtain walls are also built in sections to allow for thermal expansion and contraction. The sections are separated by a steel relieving angle, which also supports the individual sections. The term "relieving" refers to the steel angle providing enough space for a horizontal expansion joint, and not to relieving the lower masonry from the weight of the higher masonry above.

Overall, the individual masonry sections aren't too different from modern glass curtain wall sections, and they will flex with the building.

Bearing wall supported buildings or cage-style (bearing wall supported exterior, steel or cast-iron supported interior) buildings are typically shorter and less flexible than internal support buildings. As a result, they will encounter less flex and be less affected by wind forces.

All masonry facades (as well as any facade, really) will need to be evaluated for damage over their operating lifespans.
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