Laserfiche WebLink
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) Version 1.0 <br />These requirements apply to all IRC building types, including detached one- and two-family <br />dwellings and multiple single-family dwellings (townhouses). <br />Project Information Contact Information <br />1318 75th St SE, Everett ATVAGA LLC <br />Everett arina@atvaga.com atva a.com <br />Instructions: This single-family project will use the requirements of the Prescriptive Path below and <br />incorporate the minimum values listed. Based on the size of the structure, the appropriate number of <br />additional credits are checked as chosen by the permit applicant. <br />Provide all information from the following tables as building permit drawings: Table R402.1- Insulation and <br />Fenestration Requirements by Component, Table R406.2 - Fuel Normalization Credits and 406.3 - Energy Credits. <br />Authorized Representative Date 01/24/2022 <br />All Climate Zones (Table R402.1.1) <br />R-Values U-Factors <br />Fenestration U-Factor b n/a 0.30 <br />Skylight U-Factor b n/a 0.50 <br />Glazed Fenestration SHGC b'" n/a n/a <br />Ceiling e 49 0.026 <br />Wood Frame Wall eh 21 int 0.056 <br />Floor 30 0.029 <br />Below Grade Wall `" 10/15/21 int + TB 0.042 <br />Slab °fR-Value & Depth 10, 2 ft n/a <br />R-values are minimums. U-factors and SHGC are maximums. When insulation is installed in a cavity that is less <br />a than the label or design thickness of the insulation, the compressed R-value of the insulation from Appendix <br />Table A101.4 shall not be less than the R-value specified in the table. <br />b The fenestration U-factor column excludes skylights. <br />"10/15/21 +5TB" means R-10 continuous insulation on the exterior of the wall, or R-15 continuous insulation on <br />the interior of the wall, or R-21 cavity insulation plus a thermal break between the slab and the basement wall at <br />c the interior of the basement wall. "10/15/21 +5713" shall be permitted to be met with R-13 cavity insulation on <br />the interior of the basement wall plus R-5 continuous insulation on the interior or exterior of the wall. "5TB" <br />means R-5 thermal break between floor slab and basement wall. <br />d R-10 continuous insulation is required under heated slab on grade floors. See Section R402.2.9.1. <br />For single rafter- or joist -vaulted ceilings, the insulation may be reduced to R-38 if the full insulation depth <br />e extends over the top plate of the exterior wall. <br />R-7.5 continuous insulation installed over an existing slab is deemed to be equivalent to the required perimeter <br />f slab insulation when applied to existing slabs complying with Section R503.1.1. If foam plastic is used, it shall <br />meet the requirements for thermal barriers protecting foam plastics. <br />For log structures developed in compliance with Standard ICC 400, log walls shall meet the requirements for <br />9 climate zone 5 of ICC 400, <br />Int. (intermediate framing) denotes framing and insulation as described in Section A103.2.2 including standard <br />h framing 16 inches on center, 78% of the wall cavity insulated and headers insulated with a minimum of R-10 <br />insulation. <br />Prescriptive Path - Single Family 2018 Washington State Energy Code-R <br />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 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 f#1 or i#3 <br />3. Large Dwelling Unit: 7 credits <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 />Summary of <br />Table R406.2 <br />Heating <br />Options <br />Fuel Normalization Descriptions <br />Credits - select ONE <br />heating option User Notes <br />1 <br />Combustion heating minimum NAECA" <br />0.0 <br />❑ <br />2 <br />Heat pump` <br />1.0 <br />3 <br />Electric resistance heat only - furnace or zonal <br />-1.0 <br />❑ <br />4 <br />DHP with zonal electric resistance per option 3.4 <br />0.5 <br />❑ <br />5 <br />All other heating systems <br />-1.0 <br />❑ <br />Energy <br />Credits - select <br />ONE <br />Options <br />p <br />Energy Credit Option Descriptions <br />energy option from <br />each <br />category' <br />1.1 <br />Efficient Building Envelope <br />0.5 <br />Fenestration U-0.24 <br />1.2 <br />Efficient Building Envelope <br />1.0 <br />❑ <br />1.3 <br />Efficient Building Envelope <br />0.5 <br />❑ <br />1.4 <br />Efficient Building Envelope <br />1.0 <br />❑ <br />1.5 <br />Efficient Building Envelope <br />2.0 <br />❑ 7771 <br />1.6 <br />Efficient Building Envelope <br />3.0 <br />❑ <br />1.7 <br />Efficient Building Envelope <br />0.5 <br />❑ <br />2.1 <br />Air Leakage Control and Efficient Ventilation <br />0.5 <br />❑ <br />2.2 <br />Air Leakage Control and Efficient Ventilation <br />1.0 <br />❑ <br />2.3 <br />Air Leakage Control and Efficient Ventilation <br />1.5 <br />❑ <br />2.4 <br />Air Leakage Control and Efficient Ventilation <br />2.0_ <br />❑ <br />3. 1' <br />High Efficiency HVAC <br />1.0 <br />❑ <br />3.2 <br />High Efficiency HVAC <br />1.0 <br />❑ <br />3.3, <br />High Efficiency HVAC <br />1.5 <br />❑ <br />3.4 <br />High Efficiency HVAC <br />1.5 <br />❑ <br />3.5 <br />High Efficiency HVAC <br />1.5 <br />❑ <br />3.6' <br />High Efficiency HVAC <br />❑ <br />2.0 <br />Imin_ HSPF-10 <br />4.1 <br />High Efficiency HVAC Distribution System <br />0.5 <br />❑ <br />4.2 <br />High Efficiency HVAC Distribution System <br />1.0 <br />❑ <br />Prescriptive Path - Single Family 2018 Washington State Energy Code-R <br />a <br />0 <br />N O <br />N <br />O <br />CIDco <br />O <br />J N Q V <br />0 0 - <br />rn 0 <br />> M r> <br />Q O M <br />O W <br />ti <br />-1-r <br />M <br />O <br />i00 <br />O <br />W <br />W <br />� <br />v♦ <br />W <br />v <br />Ill <br />Cn <br />L <br />LO <br />00 <br />t- <br />r <br />O <br />M <br />r <br />� <br />DISCLAIMER <br />DUET LIMITED SITE AND PROJECT INFORMATION, ATVAGA ACCEPTS NO LIABIL <br />THE CONTENT OF THIS FEASIBILITY STUDY OR FOR THE CONSEQUENCES OF At <br />ACTIONS TAKEN ON THE BASIS OF THE INFORMATION PROVIDED IN THIS FEASIB <br />STUDY. <br />NOTICE: <br />TEAM <br />CHECKED <br />DRAWING REVISION <br />DESCRIPTION NO. I <br />PERMIT SET 2022-I <br />ENERGY <br />Al2.1 <br />