Breaking Barriers with Buried Ducts
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A version of this article appears in the Fall 2018
issue of Home Energy Magazine.
September 14, 2018
In a 2013 cost study commissioned by Leading Builders of America, it was estimated that as much as $1,700 in construction costs can be saved by using a performance path instead of the prescriptive table in the International Energy Conservation Code (IECC). Compliance with the energy code was driven primarily by a prescriptive method until recently. The performance path method uses energy modeling to demonstrate that the building as a whole uses energy equal to or less than the energy used by a home built to the prescriptive path. Thus the performance path allows builders the flexibility to trade out many of the high-cost assemblies required in the prescriptive path, delivering a home that is at least as efficient.
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