In the United States, 82.5 percent of the population is urban—a number translating to more than 268 million people in 2016. (This number was obtained from the United Nations [UN] Populations Division’s World Population Prospects: The 2015 Revision.)
When Dallas’ original Parkland Hospital was built in 1894, it was a simple clapboard structure. Today, the New Parkland Hospital spans more than 185,806 m2 (2 million sf) and its façade comprises a proprietary system of metal panels.
Failures of claddings like adhered masonry veneer–also known as manufactured stone–often stem from poor flashings, misapplied air and water-resistive barriers (WRBs), and limited drainage. Resulting problems related to moisture intrusion into the wall assembly’s dry zone are moist wall interiors, wet insulation, and rot in sheathing and framing.