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Cavity walls: metal wall ties

The facing and backing wythes of cavity walls are bonded with metal wall ties or horizontal joint reinforcement. Most adjustable loop ties have a drip that falls in the cavity to prevent the migration of water to the inner wythe. Why are drips not recommended for rectangular ties?

AnswerThe bend of the drip would reduce the capacity of a rectangular tie to transfer lateral load.

ARE 4.0 exam prep: BDCS

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