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2018 Washington State Energy Code-Residentia;; <br /> Prescriptive Energy Code Compliance for All Climate Zones in Washington <br /> Single Family- New &Additions (effective February 1, 2021) <br /> Each dwelling unit in a residential building shall comply with sufficient options from Table R406.2 (fue, <br /> normalization credits) and Table 405.3 (energy credits) to achieve the following minimum number o` <br /> credits. To claim this credit, the building permit drawings shall specify the option selected and the <br /> maximum tested building air leakage, and show the qualifying ventilation system and its control sequence <br /> of operation. <br /> 1, Small Dwelling Unit: 7 credits <br /> Dwelling units less than 1,500 sf in conditioned floor area with less than 300 sf of fenestration area, <br /> Additions to existing building that are greater than 500 sf of heated floor area but less than 1,500 sf, <br /> 2. Medium Dwelling Unit:6 credits <br /> All dwelling units that are not included in #1 or#3 <br /> 3. Large Dwelling Unit: 'P"credits <br /> Dwelling units exceeding 5,000 sf of conditioned floor area <br /> 4. Additions less than 500 square feet: 1.5 credits <br /> .,ail other a it;<'::_,. : . „ .dove <br /> Before selecting your credits on this Summary table, review the details in Table 406.3(Single Family),on page 4. <br /> Summary of Table R406.2 and 406.3 <br /> Heating] Credits-select ONE <br /> Fuel Normalization Descriptions User Notes <br /> OptionsI heating option <br /> 1 1 Combustion heating minimum NAECAb 0.0 ❑ I <br /> 2 t Heat pump` ' 1.0 j ❑ <br /> 3 !Electric resistance heat only-furnace or zonal -1.0 I CI 3 credits req'd-1=2 credits <br /> 4 DHP with zonal electric resistance per option 3.4 0.5 L ❑ ._.. <br /> 5 All other heating systems _ I -1.0 I ❑O ry1 I <br /> Energy Credits-select NE 1 <br /> Options Energy Credit Option Descriptions energy option from each <br /> cate or d <br /> 1.1 1 EffffIlEat101111101E IMELM0111 0.5 ' 0 <br /> 1.2 !Efficient Building Envelope 1.0 I ❑ <br /> 1.3 I Efficient Building Envelope - -� 0.5 0 <br /> 1.4 I Efficient Building Envelope 1.0 ❑ <br /> 1.5 Efficient Building Envelope 2.0 <br /> 1.6 Efficient Building Envelope 3.0 Ei <br /> j 1.7 i Efficient Building Envelope P 0.5 in <br /> 2.1 Air Leakage Control and Efficient Ventilation 0.5 ❑ <br /> 2.2 Air Leakage Control and Efficient Ventilation 1.0 ❑ <br /> 2.3 Air Leakage Control and Efficient Ventilation 1.5 1 ❑ I <br /> 1:1- <br /> 2.4 Air Leakage Control and Efficient Ventilation 2.0 El <br /> 3.1a High Efficiency HVAC 1.0 i ❑ <br /> 3.2 1 High Efficiency HVAC 1.0 i ❑ <br /> 3.3' High Efficiency HVAC 1.5 0__ <br /> 3.4 High Efficiency HVAC 1.5 0 <br /> 3.5 !High Efficiency HVAC 1.5 j ❑ I <br /> 3.6. I High Efficiency HVAC Q 2.0 ❑ --I <br /> 4.1 I High Efficiency HVAC Distribution System 0.5 I 0 <br /> 4.2 !High Efficiency HVAC Distribution System 1.0 I 0 <br /> Prescriptive Path-Single Family 2018 Washington State Energy Code-R 2 <br />