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Pal W 10 I-949-O_Energy_Forms20I8 Washington State Energy Code — Residential Prescriptive Energy Code Compliance for All Climate Zones in Washington Single Family -- New &ddfifian5 Teffecti►re February 1, 2021) Version 1.0 These requirements apply to all IRC building types, including detached one- and two-family dwellings and multiple single-family dwellings (townhouses). PrWect In formation 1-949-0 Contact Information GNS Construction Instructions: This single-family project will use the requirements of the Prescriptive Path below and incorporate the minimum values listed. Based on the size of the structure, the appropriate number of additional credits are checked as chosen by the permit applicant. Provide all information from the following tables as building permit drawings: Table R402.1- Insulation and Fenestration Requirements by Component, Table R406.2 - Fuel Normalization Credits and 406.3 - Energy Credits. Representative M All Climate Zones able 31402.1.1 R -Value ° U -Factor ■ Fenestration U -Factor ° n/a 0.30 S li ht U -Factor a n/a 0.50 Glazed Fenestration SHGC °'° rr/a n/a Ceiling ° 49 0.026 Wood Frame Wall &h 21 int 0.056 Floor 30 0.029 Below Grade Wall cfi 10/15/21 int + TS 0.042 Slab R -Value & Depth 10, 2 ft n/a R -values are minimums. U -factors and SHGC are maximums. When insulation is installed in a cavity that is less a than the label or design thickness of the insulation, the compressed R -value of the insulation from Appendix Table A101.4 shall not be less than the R -value specified in the table_ b The fenestration. U -factor column excludes skylights. _ "10/15/21 +5TB" means R-10 continuous insulation on the exterior of the wall, or R-15 continuous insulation on the interior of the wall, or R-21 cavity insulation plus a thermal break between the slab and the basement wall at c the interior of the basement wall. "10/15/21 +5TB" shall be permitted to be met with R-13 cavity insulation on the interior of the basement wall plus R-5 continuous insulation on the Interior or exterior of the wall. "5TB" means R-5 thermal break between floor slab and basement wall. d R-10 continuous insulation is req uired under heated slab on grade floors. See Section 8402.2.9.1. For single rafter- or joist -vaulted ceilings, the insulation may be reduced to R-38 if the full insulation depth e extends over the top p late of the exterior wall. R-7.5 continuous insulation installed over an existing slab is deemed to be equivalent to the required perimeter f slab insulation when applied to existing slabs complying with Section R503.1.1. If foam plastic is used, It shall meet the rtq u1rements for thermal barriers protecti n.@ foam plastics. For log structures developed in compliance with Standard ICC 400, log walls shall meet the requirements far g climate zone 5 of ICC 400. Int. (intermediate framing) denotes framing and insulation as described in Section A103.2.2 including standard h framing 16 inches on center, 78% of the wall cavity insulated and headers insulated with a minimum of R-1.0 insulation. Prescriptive Path — Single Family 2018 Washington State Energy Cod e -R 2015 Washington State Energy Code - Residential Prescriptive Energy Code Compliance for All Climate Iones in Washington ily - New & Additions [effective February= Each dwelling unit in a residential building shall comply with sufficient options from Table R406.2 (fuel normalization credits) and Table 406.3 (energy credits) to achieve the following minimum number of credits. To claim this credit, the building permit drawings shall specify the option selected and the maximum tested building air leakage, and show the qualifying ventilation system and its control sequence of operation. 1. Small Dwelling Unit: 3 credits Dwelling units iessthan 1,500 sf in conditioned floor area with less than 300 sf of fenestration area. Additions to existing building that are greater than 500 sf of heated floor area but less than 1,500 sf. 2. Medium Dwelling Unit: 6 credits All dwelling units that are not included in #1 or #3 3. Large Dwelling Unit: 7 credits Dwelling units exceeding 5,000 sf of conditioned floor area 4. Additions less than 500 square feet: 1.5 credits All other additions shall meet 1-3 above Before selecting your credits on this Summary table, review the details in Table 405.3 (single Family), on page 4. Heating Options Summary of TWe R+406.2 Credits - select ONE - Fuel Normalization Descriptions heating option User Notes 1 Combustion heating minimum NAECA° 0.0 ❑ 2 3 heat pump` Electric resistance heat only - fumace or zonal 1.0 -1.0 0 ❑ 4 DHP with zonal electric resistance per option 3.4 0.5 ❑ 5 All other heating systems -1.0 ❑ Energy Options 1.1 1.2 Energy Credit Option Descriptions ® ® Efficient Building Envelope Credits - select ONE energy option from each tate o 0.5 1.0 0.5 ❑ ❑ 0 1.3 Efficient Building Envelope 1.4 Efficient Building Envelope 1.0 ❑ 1.5 Efficient Building Envelope 2.0] 1.6 1.7 Efficient Building Envelope Efficient Building Envelope El 3.0 ❑ 05 ❑ 2.1 Air Leakage Control and Efficient Ventilatlon 05 Ei 2.2 Air Leakage Control and Efficient Ventilation 1.0 ❑ 2.3 Al Leakage Control and Efflcient Ventilation 15 2.0 1.0 1.0 ❑ ❑ ❑ ❑ 2.4 Air Leakage Control and Efficient Ventilatlon 3.1' Hi den HVAC 3.2 High Efficiency HVAC 3.3' High Efficiency HVAC 1.5 ❑ 3.4 High Efficiency HVAC 1.5 ❑ 3.5 High Efficiency HVAC 1.5 El 3.62 4.1 High Effic€enry HVAC E High Efficiency HVAC Distribution System 2.0 ❑ 0.5 0 4.2 High Efficiency HVAC Distribution System EZ.D ❑ Prescriptive Path - Single Family 2018 Washington State Energy Code -R 2018 Washington State Energy Code — Residential Prescriptive Energy Code Compliance for All Climate Zones in Washin rton Summary of Table 8406.2 (cont.) Energy Credits - select ONE Options Energy Credit Option Descriptions (cont.) energy option from User Notes each tate o ' _ rte - g _ . . 5.1d Efficient Water Heating 0,5 13 5.2 Efficient Water Heating 0,5 ❑ 5.3 Efficient Water Heating 1.0 ❑ 5.4 Efficient Water Heating 1.5 ❑ 5.5 Efficient Water Heating 2.0 El 5.6 Efficient Water Heating 2.5 ❑ 6.10 Renewable Electric Energy credits max) 1.0 0 7.1 IARpllance Package Total Credits 0.5 TR 8.0 Calm" ToWl Clear Farm a. An alternative heating souroe sized at a maximum of 0.5 W/sf (equivalent) of heated floor area or 500 W, whichever Is bigger, may be installed in the dwelling unit. b. Equipment listed in Table C403.3.2(4) or C403.3.2(5) c. Equipment listed in Table C403.3.2(1) or C403.3.2(2) d. You cannot select more than one option from any category EXCEPT in category S. Option 5.1 may be combined with options 5.2 through 5.6. See Table 406.3. e. 1.0 credit for each 1,200 kWh of electrical generation provided annually, up to 3 credits max. See the complete Table R406.2 for all requirements and option descriptions. f. Use the single radiobutton In the upper right of the second oolumn to deselect radiobuttons In that group, Please print only pages I through 3 of this worksheet for submission to your building official. Prescriptive Path - Single Family 2018 Was hingtan State Energy Code -R Window, Skylight and Door Schedule proad Ir f awn Cc &d + avm a on 1-949-0 GNS Canstrvdion Wdth Height Ref, U -factor Qt Fee; Feet '" Area UA Exempt Swinging poor (24 sq. ft. max.) 0.28 It 13 lu IL:e 20.0 5.50 Exempt Glazed Fenestration (15 sq. ft. max.) L I I I0,0 O.Of] Vertical Fenestration (Windows and doorsy Component Vfth Height Qt- Feet"" Feet =M®®® =ME©® ©®®©® ©UNM®® MINE©®' NEMBIER® INBE®®® EI®®©® =©®©® ©©®M® =©®MI® EIME�� IEIU=ME MINUME NEENUIENE --DME IN EMU IMIMNE� IMINIMEN _-IMEN -NI MENIMEN MINIO MMMME MMEME MENNININ MMEME EIME�� MENOININ MMINEIE MMEME MMEME INIMEE� MIN O IM-EME NIUMINNE IM -E -N IMIMEME IM -M -E _IMEME �MIMEN MMIMEN MMEME Sum ofVeHd cal Fenestration Area and UA Verfxral Fenesfralron Area Werghled V = UAVArea Overhead Glazing (Skylights) Component McIth Height Desai tion Ref U -facto; Ot. Feet "`" Feet Sum of ❑vedl oad Glazing Area and UA Overhead Glazing Area Weighted U = UAIArea Total Sum of Fenestration Area and UA (for heating system string calculations) 265.8 74.41 0.28 Area JA 0.0 0.00 v -o O.00 O.0 O.Oa 0.0 0.00 fl.❑ o.oO 0.0 0.00 0.01 00 ❑-GQ 285-8 80A1 Simple Heating System Size: Washington State This heating system sizing caICUlator is based on the Prescriptive Requirements of the 2018 Washington State Energy Code tool will calculate heating loads only, ACOA procedures for sizing cooling systems should he used to determine cool inq bads. This Please complete the green drop -downs and boxes that are applicable to your project. As you make selections in the drop -downs for each seat lon, some values will be calculated for you. If you do not see the selection you need in the drop-down options, please contact the WSU Energy Program at energycode@energy-wsu.edu or {380} 956-21.342 for assistance. Heating System Type: Q All other sy,tW, * Heat Pam Ta see dabbed irmbucWw kx'each section, place your cursor on the x+ord "lnstrdlcl,C7n5" Design Temperature instruCt�vns Rainier Lan mire Design Temperature pifference (AT) 9i- —(70 dggy"Sj• 0 -vow O"n ramp Area of Building Conditioned Volume Gonditifoned Floor Area 9-Q Instructions Conditioned Floor Area {sq ft} Average Ceiling Height X Area - Instructions Average Ceiling Height (ft) 0.280 Glazing and Doors 73.94 Instructions X Area - LA u-o.2s 0.50 Skylights — Instructions X Area = Insulation 0-026 Attic 47-32 Instructions X Area Single Rafter or Joist Vaulted Ceilings Instructions No Vaulted Ceilincis in th Is protect. Above Grade Walls (meFpur f) X Area insouct�vns 0.056 R-21 Intennedlate 115.02 Floors X Area Instructions 0.625 R-38 0.25 Below Grade Walls rsm Figure }J X Area Instructions No selection Select R -value Slab Below Grade rsee Figure 7] X Len th Instructions 0.303 No Slab Below Grade in [his project. _ Slab on Grade I,— Flgurg +i X Len th Instructions 0.540 R-10 Perimeter _• Location of Ducts Instructions VncandRlaned 5 ce Fioure 1. G 2,286 Duct Leakage Coefficient 1.10 55 Sum of UA Conditioned Volume Envelope Heat Load 9-Q 20,574 U -Factor X Area - UA 0.280 288 73.94 U -Factor X Area - UA 0.50 Ducts in uncondilior space: sum of buddinc heat loss — U -Factor X Area = UA 0-026 t,82L1 47-32 U -Factor X Area UA U -Factor X Area UA 0.056 2,054 115.02 LI -Factor X Area UA 0.625 10 0.25 U -Factor X Area UA No selection 975 F -Factor X Len th UA 0.303 — F -Factor X Len th UA 0.540 151 81-43 Duct Leakage Coefficient 1.10 55 Sum of UA 323.97 Envelope Heat Load 17,818 Btu/ Hour Sum of UA x AT Air Leakage Heat Load 12,221 Stu/ Hour Volumex 0.6xATx0,018 Building Design Heat Load 30,039 Btu /Hour Air leakage + envelope heat loss Building and Duct Heat Load 33,043 Btu/ Hour Ducts in uncondilior space: sum of buddinc heat loss x t 10 Ducts in condilloned space: sum of buddino hear k>Ss x 7 Maximum heat Equipment Output 41,304 Btu/ Hour Suildinc and duel heat loss x 1.40 for forced air furnace Buildinc and duct hear loss x 1-25 Wheal pump