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Sidebar: ASHRAE 202

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In fact, the eerie fog pouring from under the soffits of a newly built elementary school on a U.S. military base was just the disappointing result of an air-barrier test. Although the U.S. Army Corps of Engineers (USACE) has required performance testing of air barriers in all its construction contracts since 2007, the final results are not always satisfactory. And with this particular school building, the stage was not set for success, explained Matthew Heron, P.E., department manager of Pie Consulting & Engineering’s building science group. That’s why consultants like Pie are increasingly offering—and owners like USACE and many contractors and architecture firms are increasingly seeking out—building enclosure commissioning, or BECx.

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