How to determine the amount of continuous insulation required by codes, while still retarding water vapor according to climate zone locations
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"While ASHRAE 90.1 has been pushing continuous insulation (CI) for the past decade, the building codes are catching on. And now that the U.S. Department of Energy (DoE) has mandated all states to adopt a commercial building energy code that meets or exceeds ASHRAE Standard 90.1-2010, CI specifications are really being cast into the spotlight."
The National Institute of Building Sciences (NIBS)–under contract from the Army Corps of Engineers, the Naval Facilities Engineering Command, the US Air Force, the General Services Administration, the Department of Energy, and the Federal Emergency Management Agency—has developed this comprehensive federal guide for exterior envelope design and construction for institutional/office buildings.