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REVIEWED BLD RESUB 2-BLD-BLD2023-1095+Energy_Calculations+8.23.2024_10.21.19_AM+4458885REVIEWED BY = 2018 Washington State Energy Code — Residential Proscriptive Energy Code Compliance for All Climate Zones in Washington CITY OF EDMONDS _ Single Family - New & Additions (effective February 1, 2021)_ version 1.0 _ BUILDING DEPARTMENT: ..............................................: These requirements apply to all IRC building types, including detached one- and two-family dwellings and multiple single-family dwellings (townhouses). Project information Contact Information _ RUST RESIDENCE JAMES RUST 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. Authorized Representative Date All Climate Zones (Table R402.1.1) —_ R-Value a U-Factor a Fenestration U-Factor b n/a 0.30 Skylight U-Factor b n/a _0.50 Glazed Fenestration SHGC b,e n/a n/a Ceiling a 49 0.026 Wood Frame Wall g,h 21 int 0.056 Floor 30 0.029 Below Grade Wall `-h 10/15/21 int+TB 0.042 Slab d f R-Value & Depth r 10, 2 ft n/a — - --- L - ---- - - -_ -- -- --- - - - - 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 required under heated slab on grade floors. See Section_R402.2.9.1. _ 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 plate 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 requirements for thermal barriers protecting foam plastics. For log structures developed in compliance with Standard ICC 400, log walls shall meet the requirements for 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-10 insulation. 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 Washington Single Family- New & Additions (effective February 1, 2021) 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 less than 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 406.3 (Single Family), on page 4. Summary of Table R406.2 Heating Options Fuel Normalization Descriptions Credits - select ONE heating option User Notes 0.0 ❑ 1 Combustion heating minimum NAECAb 2 Heat pump` 1.0 0 3 Electric resistance heat only - furnace or zonal -1.0 ❑ 4 DHP with zonal electric resistance per option 3.4 0.5 ❑ 5 All other heating systems -1.0 ❑ Energy Options p Energy Credit Option Descriptions Credits - select energy option category ONE from each 1.1 Efficient Building Envelope 0.5 ❑ 1.2 Efficient Building Envelope 1.0 ❑ 1.3 Efficient Building Envelope 0.5 ❑ 1.4 Efficient Building Envelope 1.0 ❑ 1.5 Efficient Building Envelope 2.0 ❑ 1.6 Efficient Building Envelope 3.0 ❑ 1.7 Efficient Building Envelope El 0.5 ❑ 2.1 Air Leakage Control and Efficient Ventilation 0.5 ❑ 2.2 Air Leakage Control and Efficient Ventilation 1.0 ❑ 2.3 Air Leakage Control and Efficient Ventilation 1.5 ❑ 2.4 Air Leakage Control and Efficient Ventilation 2.0 ❑ 3.11 High Efficiency HVAC 1.0 ❑ 3.2 High Efficiency HVAC 1.0 0 3.31 High Efficiency HVAC 1.5 ❑ 3.4 High Efficiency HVAC 1.5 ❑ 3.5 High Efficiency HVAC 1.5 ❑ 3.6a High Efficiency HVAC 2.0 ❑ 4.1 High Efficiency HVAC Distribution System 0.5 ❑ 4.2 High Efficiency HVAC Distribution System 1.0 ❑ 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 Washington W Single Family— New & Additions (effective February 1, 2021) — Summary of Table R406.2 (cont.) Energy Options Energy Credit Option Descriptions (cont.) Efficient Water Heating Efficient Water Heating Efficient Water Heating Credits - select ONE energy option from each category d User Notes 5.1d 0.5 ❑ 5.2 0.5 ❑ 5.3 1.0 I] 5.4 Efficient Water Heating 1.5 ❑ 5.5 Efficient Water Heating 2.0 ❑ 5.6 Efficient Water Heating 2.5 ❑ 6.1e Renewable Electric Energy (3 credits max) 1.0 0 7.1 Appliance Package 0.5 ❑ Total Credits F 3.0 IMMbWTotall I Clear Form a. An alternative heating source 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 column to deselect radiobuttons in that group. Please print only pages 1 through 3 of this worksheet for submission to your building official. Prescriptive Path —Single Family 2018 Washington State Energy Code-R 3 Window, Skylight and Door Schedule Project Information RUST RESIDENCE 19803 81 ST PL W EDMONDS, WA 98026-6410 Ref. U-factor Exempt Swinging Door (24 sq. ft. max.) Exempt Glazed Fenestration (15 sq. ft. max.) Vertical Fenestration (Windows and doors) Component Description Ref. U-factor DINING 0.30 GREAT ROOM 0.30 GREAT ROOM 0.30 OFFICE 0.30 BATHROOM 0.30 MASTER 0.30 Contact Information JAMES RUST Width Height Qt. Feet Inch Feet Inch Area UA Width Height Qt. Feet Inch Feet Inch EIMER� M©EME ©MEME EI©EME EI©E©E EI©EME --E-E --■-■ --■-■ --■-■ --■-■ --■-■ --■-■ --■-■ --■-■ --■-■ --■-■ --■-■ --■-■ --■-■ --■-■ --■-■ --■-■ --■-■ --■-■ --■-■ --■-■ --■-■ --■-■ --■-■ --■-■ --■-■ --■-■ 11 111 11 111 Area UA ®1 •1 1 1 • 11 1 1 • 11 11 111 11 111 11 111 11 111 11 111 11 111 11 111 11 111 11 111 11 111 11 111 11 111 11 111 11 111 11 111 11 111 11 111 11 111 11 111 11 111 11 111 11 111 11 111 11 111 11 111 11 111 11 111 Sum of Vertical Fenestration Area and UA Vertical Fenestration Area Weighted U = UA/Area Overhead Glazing (Skylights) Component Description Ref. U-factor Width Height Qt. Feet Inch Feet Inch Sum of Overhead Glazing Area and UA Overhead Glazing Area Weighted U = UA/Area Total Sum of Fenestration Area and UA (for heating system sizing calculations) 11 111 11 111 11 111 11 111 11 111 11 111 11 111 11 111 11 111 229.7L!�A Area UA 11 111 11 111 11 111 11 111 11 111 11 111 11 111 1 11 1 229.71 68.90 simple Heating system size: wasnington state This heating system sizing calculator is based on the Prescriptive Requirements of the 2018 Washington State Energy Code (WSEC) and ACCA Manuals J and S. This tool will calculate heating loads only. ACCA procedures for sizing cooling systems should be used to determine cooling loads. Please complete the green drop -downs and boxes that are applicable to your project. As you make selections in the drop -downs for each section, 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 (360) 956-2042 for assistance. Project Information Contact Information RUST RESIDENCE I IJAMES RUST 19803 81ST PL W EDMONDS, WA 98026-6410 Heating System Type: O All other systems OO Heat Pump To see detailed instructions for each section, place your cursor on the word 'Instructions" Design Temperature Instructions l Design Temperature Difference (AT) 46 Edmonds AT = Indoor (70 degrees) - Outdoor Design Temp Area of Building Conditioned Floor Area Instructions Conditioned Floor Area (sq ft) 976 Average Ceiling Height Conditioned Volume Instructions Average Ceiling Height (ft) 9.0 8,784 Glazing and Doors U-Factor X Area = UA Instructions u-o.so . I 0.300 230 69.00 Skylights U-Factor X Area = UA Instructions 0.50 --- Insulation Attic U-Factor X Area = UA nstructions R 49 0.026 976 25.38 Single Rafter or Joist Vaulted Ceilings U-Factor X Area UA Select R-Value I No selection --- Above Grade Walls (see Figure 1) U-Factor X Area UA Instructions 0.056 697 39.03 I_J R-21 Intermediate � Floors U-Factor X Area UA Instructions 0.025 I 976 24.40 R-38 � Below Grade Walls (see Figure 1) U-Factor X Area UA Instruction- Select R-value � No selection I --- Slab Below Grade (see Figure 1) F-Factor X Length UA Instructions Select conditioning No selection --- Slab on Grade (see Figure 1) F-Factor X Length UA Instructions Select R-Value � No selection I 0 --- Location of Ducts Instructions Duct Leakage Coefficient L Unconditioned Space 1.10 Sum of UA 157.81 Envelope Heat Load 7,259 Btu / Hour Figure 1. Sum of UA x AT Air Leakage Heat Load 4,364 Btu / Hour Volume x 0.6 x AT x 0.018 Above Grade Building Design Heat Load 11,623 Btu/Hour Air leakage + envelope heat loss Building and Duct Heat Load 12,785 Btu / Hour Ducts in unconditioned space: sum of buildinq heat loss x 1.10 Ducts in conditioned space: sum of building heat loss x 1 Maximum Heat Equipment Output 15,982 Btu / Hour Building and duct heat loss x 1.40 for forced air furnace Building and duct heat loss x 1.25 for heat pump (07101113)