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2018 Washington State Energy Code-Residential <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 (fuel <br /> normalization credits) and Table 406.3 (energy credits) to achieve the following minimum number of <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: 3 ci-cditfs <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: G credits <br /> All dwelling units that are not included in#1 or#3 <br /> 3. Large Dwelling Unit: 7 cr(!dit;s <br /> Dwelling units exceeding 5,000 sf of conditioned floor area <br /> 4. Additions less than 500 square feet: 1.5 credits <br /> All other additions shall meet 1-3 above <br /> Before selecting your credits on this Summary table, review the details in Table 406.3(Single Family),on page 4. <br /> Summaryof 2 <br /> Table R4�G. <br /> Heating Fuel Normalization Descriptions Credits-select ONE User Notes <br /> Options - 1. ..._.. heating option I <br /> . _ <br /> 1 Combustion heating minimum NAECAb 0.0 ❑ <br /> _ .. - -- ---- - .. <br /> -- <br /> 2 Heat pump 10 1 ❑ <br /> 3 Electric resistance heat only-furnace or zonal -1.0 ❑ <br /> 4 DHP with zonal electric resistance per option 3.4 0.5 ❑ <br /> 5 All other heating systems 1.0 ❑ <br /> Energy Credits-select ONE <br /> Options:: Energy Credit Option Descriptions energy option from each <br /> category <br /> - --- <br /> j 1.1 Efficient Building Envelope ' 0.5 ❑ <br /> _ - - ..- - -- ...._..........i_. ... <br /> 1.2 Efficient Building Envelope 1.0 ❑ <br /> ........... .. ... . .. ...... _. .... _ .....__. _ <br /> 1.3 Efficient Building Envelope 0.5 ❑ <br /> _._.._ ........- ...... .... <br /> 1.4 Efficient Building Envelope 1.0 ❑ <br /> _ _ ........_.... <br /> __ <br /> 1.5 Efficient Building Envelope 2.0 ❑ <br /> 1.6 Efficient Building Envelope 3.0 ❑ <br /> 1.7 Efficient Building Envelope ❑. 0.5 <br /> ❑ <br /> _ .... - . _ <br /> 2.1 Air Leakage Control and Efficient Ventilation 0.5 ❑ <br /> .._....._� - ...... <br /> 2.2 Air Leakage Control and Efficient Ventilation 1.0 ❑ <br /> 2.3 Air Leakage Control and Efficient Ventilation 1.5 ❑ <br /> 2.4 Air Leakage Control and Efficient Ventilation 2.0 ❑ <br /> _ ....._... ....... _. -......_I__ ....._ ..._... <br /> 3.11 High Efficiency HVAC 10 ❑ <br /> .. .... _....- -- -... __.._.__ .. - ._ ..._. <br /> 3.2 ;High Efficiency HVAC 1.0 ❑ <br /> 3.31 ;High Efficiency HVAC ! 1.5 ❑ <br /> - - - ._.._..... ... .. . ....... .._ ...._ - _ <br /> 3.4 High Efficiency HVAC 1.5 [� <br /> 3.5 High Efficiency HVAC 15 ❑ <br /> __ ..... <br /> 3.68 :High Efficiency HVAC 2.0 ❑ <br /> 4.1 High Efficiency HVAC Distribution System 0.5 ❑ <br /> ... <br /> 4.2 High Efficiency HVAC Distribution System ❑ 1.0 ❑ <br /> Prescriptive Path-Single Family 2018 Washington State Energy Code-R 2 <br />