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Building Code Board of Appeals <br />Packet <br />May 12, 2025 <br />Page 13 of 64 <br />S S <br />Dwelling units with an average of <3,500 <br />square feet (325 m2) or less of conditioned 15 10 <br />floor area <br />Dwelling units with an average of 3,500 <br />square feet (325 m2) to 4,999 square feet 25 20 <br />(464 m2) of conditioned floor area <br />a. Dwelling units with greater than 5,000 square feet (325 m2) of conditioned floor area must comply <br />with the Energy Rating Index pathway in R401.2.3 or the Passive House pathway in R401.2.5. <br />This adds new options for credits from better <br />windows, evaporative cooling, multifamily duct <br />testing, ERV or HRV preheating limits, and <br />refrigerants, as well as fuel neutrality credits <br />(LECC). It also adds an electric -preferred <br />differential. Note: These credit values are <br />applicable to Climate Zone 5. <br />[Strengthening from base and LECC] [Flexibility] <br />24.Table R408.2 Credits for Additional Energy Efficiency is renumbered <br />R408.2.2, and the following items and footnotes are amended to read as <br />follows, with the other items and footnotes to remain: <br />TABLE R408.2.2 CREDITS FOR ADDITIONAL ENERGY EFFICIENCY <br />MEASURE <br />NUMBER <br />R408.2.1.2(2 <br />R408.2.2(4) <br />R408.2.2(5) <br />R408.2.2(11) <br />R408.2.2(12) <br />R408.2.2(13) <br />MEASURE DESCRIPTION <br />Improved fenestration <br />High performance gas furnace (Option <br />1) <br />High performance gas furnace (Option <br />2) <br />High performance gas furnace and <br />cooling (Option 3) <br />High performance gas furnace and <br />cooling (Option 4) <br />High performance gas furnace and heat <br />pump for combined heating and cooling <br />(Option 2) <br />CREDIT <br />VALUE: CZ 5 <br />3 <br />64 <br />63 <br />64 <br />75 <br />148 <br />