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REVIEWED BLD2022-0561+Energy_Calculations+5.3.2022_4.41.08_PM+2845120RECEIVED BLD2022-0561 May 17 2022 CITY OF EDMONDS DEVELOPMENT SERVICES DEPARTMENT 2018 Washington State Energy Code - Residential Prescriptive Energy Code Compliance for All Climate Zones in Washington Single Family — New & Additions (effective 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). Project Information Contact Information Sharma Residence Architectural Innovations 8422 238th Street SW Edmonds WA 114311 SE 16th Street Bellevue WA 98007 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) -Value U-Factor a .. .. r'/a iit U I c.: n/a U`,J Glazed Fenestration SHGC b,e n/a n/a Ceiling ` 49 0.0 26 Wood Frame Wall 9,h 21 int 0.06 Floor 30 0.029 Below Grade Wall ,h 10/15/21 int + TB 0.042 Slab d•f 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. "STB" 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: 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: - All dwelling units that are not included in #1 or #3 3. Large Dwelling Unit: ' s Dwelling units exceeding 5,000 sf of conditioned floor area 4. Additions less than 500 square feet: 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 Fuel Normalization Descriptions Credits - select ONE User Notes Options heating option 1 Combustion heating minimum NAECAb 0.0 ❑ 2 Heat pumps 1.0 Lil 3 _ - _ Electric resistance heat only - furnace or zonal _ _ _ -1.0 _ _ _❑ 4 _ DHP with zonal electric resistance per option 3.4 0.5 ❑ 5 Energy Options; All other heating systems ''I Energy Credit Option Descriptions _ -1.0 _ ❑ Credits - select ONE energy c ttionnr rom each 1.1 1.2 1.3 1.4 1.5 _ Efficient Building Envelope Efficient Building Envelope Efficient Building Envelope Efficient Building Envelope - - Efficient Building Envelope 0.5 1.0 0.5 __ 1.0 2.0 ❑ ❑ ❑ ❑ 1.6 1.7 2.1 2.2 .Air _ 23 Efficient Building Envelope Efficient Building Envelope Air Leakage Control and Efficient Ventilation Leakage Control and Efficient Ventilation Air Leakage Control and Efficient Ventilation _ _ 3.0 ❑ _ 0.5 ___ 0.5 1.0 _ 1.5 ❑ ❑ _ ❑ ❑ 2.4 3.1° . 3.2 3.38 3.4 3.5 3.6a 4.1 4.2 Air Leakage Control and _Efficient Ventilation _ High Efficiency HVAC High Efficiency HVACI High Efficiency HVAC High Efficiency HVAC High Efficiency HVAC High Efficiency HVAC High Efficiency HVAC Distribution System High Efficiency HVAC Distribution System ____❑ _ 2.0___ 1.0 1.0 1.5 1.S 1.5 2.0 0.5 0 1.0 _ ❑ ❑ ❑ _--� ❑ ❑ ❑ ❑ Prescriptive Path - Single Family 2018 Washington State Energy Code-R 2 2018 Washington State Energy Code — Residential Prescriptive Energy Code Compliance for All Climate Zones in Washington Single Family — New & Additions (effective February 1, 2021) _ Summary of Table R406.2 (cont.) Energy • Credits -select ONE Options Energy Credit Option Descriptions (cont.) energy option from User Notes 5.id Efficient Water Heating 5.2 Efficient Water Heating 5.3 Efficient Water Heating 5.4 Efficient Water Heating 5.5 Efficient Water Heating 5.6 Efficient Water Heating E 6.le Renewable Electric Energy (3 credits max) 7.1 Appliance Package Total Credits each category° 0.5 ❑ 0.5 ❑ 1.0 ❑ 1.5 ❑ 2.0 2.5 ❑ 1.0 Q 0.5 ❑ 6Calculate Total 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 Cade-R Size: nis heating system sizing calculator is based on the Prescriptive Requirements of the 2018 Washington State Energy Code (WSEC and S. This tool will calculate heating loads only. ACCA procedures for sizing cooling systems should be used to determine cooling 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 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 :ode@energy.wsu.edu or (360) 956-2042 for assistance. na Residence 238th Street SW 16th Heating System Type: Oal other systems OO Heat bump To see detailed instructions for each section, place your cursor on the word "Instructions" Design Temperature `s rr��I Design Temperature Difference (AT) Edmonds ICI I AT=irMow(70 degrees)- Culdoar Design Temp Area of Building Conditioned Floor Area Conditioned Floor Area (sq ft) Average Ceiling Height Average Ceiling Height (ft) Glazing and Doors U-0.28 Skylights Attic R-49 Single Rafter or Joist Vaulted Ceilings No vauited Ceilings in this project. Above Grade Walls pees Fig., 1) R-21 Inteunediate - -- Floors 38 Below Grade Walls (see Figure t) No Below Grade Walls in this project. 1 Slab Below Grade tree Fiusrs v lt N. Slab Below Grade in this project. � Slab on Grade (see Flgnre n No Slab on Grade in this project. � 4 Location of Ducts Conditioned Space 1 Figure 1. —i Abave�'"1� Below Grade 3,711 Conditioned Volume 9.8 36,182 U-Factor X Area - UA 0.280 738 206.64 U-Factor X Area = 0.50 U-Factor X Area - 0.026 2,137 U-Factor X Area U-Factor X Area 0.056 3,134 U-Factor X Area 0.025 2,137 U-Factor X Area 0.028 0� F-Factor X Len th 0.303 LM F-Factor X 0 Sum of UA Duct Leakage Coefficient 1.00 UA UA 55.56 UA UA 175.50 UA 53.43 UA UA UA 491.13 46 Envelope Heat Load 22,592 Btu / Hour Sum of UA x 6T Air Leakage Heat Load 17,975 Btu / Hour Volumex 0.6xdTx0.018 Building Design Heat Load 40,567 Btu I Hour Air leakage + envelope heat loss Building and Duct Heat Load 40,567 Btu / Hour Ducts in unconditioned space: sum of building heat loss x 1. 10 Ducts in conditioned space: sum of building heat loss x 1 Maximum Heat Equipment Output 50,709 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) Window, Skylight and Door Schedule Project Information Sharma Residence 8422 238th Street SW Edmonds AI Job # 19050.05 Exempt Swinging Door (24 sq. ft. max.) Exempt Glazed Fenestration (15 sq. ft. max.) Vertical Fenestration (Windows and doors) Component Description Ref. U-factor Ref. U-factor A3 Office Milg 0.28 A3 Foyer K/lilg 0.28 A3 Dining Room N/lilg 0.28 A3 Dining Room Milg 0.28 A3 2nd Kitchen Milg 0.28 A3 Kitchen Milg 0.28 A3 Kitchen l0ilg 0.28 A3 Kitchen SI GI Dr Simp 0.28 A3 Great Room Kilg 0.28 A3 Great room KTilg 0.28 A3 Guest Suite A3 Guest Suite A3 Guest Bath A3 Mech Room A5 Foyer A5 W.I.C. A5 Master Bath A5 Master Bedroom A5 Master Bedroom A5 Bedroom 4 A5 Bedroom 3 A5 Bedroom 3 A5 Laundry A5 Prayer Room A5 Bonus Room A5 Bonus Room A5 Bath A5 Bedroom 2 Contact Information Architectural Innovations PS 14311 SE 16th Street Bellevue WA 98007 Width Height Qt. Feet Inch Feet Inch ON©MME MMEME Width Height Qt. Feet Inch Feet Inch =MEMO =MEMO =MEMO MMEME ENMEEN EN©©©® M©EENE MMEME ©MEMO ©MEMO =MEMO EIME©� =MEMO ©©OME MMEME MMEME ©MEMO ©©E©� =MEMO MMEME MMEME MMEME =MEMO MIN MMEME MMEME EN©EENO MMEME MMEME =MEMO �MEMO MMEME MMEME MMEME MMEMO Area UA 21.31 5.97 4.7 1.17 Area UA � M �ME �® �MB � rr MEW ®� M M'' M M MME ®ME � rr � rr M M MEW MME MME r rr M M M M MNME MUME MUME Overhead Glazing (Skylights) Component Sum of Vertical Fenestration Area and UA Vertical Fenestration Area Weighted U = UA/Area Width Height reek 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) all 111 11 111 11 111 11 111 11 111 712.21 82.81 0.12 Area UA 11 111 11 111 11 111 11 11/ 11 111 11 111 11 111 1 11 738.2 89.95