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REVIEWED BLD2023-0389+Energy_Calculations+3.30.2023_2.52.46_PM+3454272RECEIVED BLD2023-0389 Apr 03 2023 2018 Washington State Energy Code — Residential CITY OF EDMONDS Prescriptive Energy Code Compliance for All Climate Zones in Washington DEVELOPMENT SERVICES DEEARIMENI Single Family -- New & Additions effective Februally 1 2021 Version 1.1 ...............................ri1wnun.0 REVIEWED These requirements apply to all IRC building types, including detached one- and two-family BY CITY OF EDMONDS dwellings and multiple single-family dwellings (townhouses). BUILDING DEPARTMENT? ............................................... Project Information Contact Information MMOURTY RESIDENCE ADDITION/ALTERATION ICHARLENE K. SMITH ARCHITECT 1139 - 3RD AVE SOUTH EDMONDS, WA 98020 1 c k.s comcast.net OR 206 450-9714 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 Fenestration U Factor b Skylight U-Factor b Glazed Fenestration SHGC b,e Ceiling Wood Frame Wall Floor Below Grade Wall `" Slab a-' R-Value & Depth All Climate Zones (Table R4021.1) R-Value a n/a n/a n/a 49 21 int 30 10/15/21 int + 10, 2 ft 7+k � Date 03I3012023 U-Factor' 0.30 0.50 n/a 54YOZE 0.042 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 required under heated slab on grade floors. See Section 11402.2.9.1. e For single rafter- or joist -vaulted ceilings, the insulation may be reduced to R-38 if the full insulation depth extends over the top plate of the exterior wall. `i 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 Sing|eFan`ihy-Qew & Additions (effective February 42D21) 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: 3c,edits 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. I Medium Dwelling Unit: ` All dwelling uoit�, that are not included in#1or#3 l Large Dwelling Unit: 7c Dwelling units exceeding 5,OUOsfufconditioned floor area 4. Additions less thmw500 square feet: %.5credits All other additions shall meet 1'3above Before selecting your credits on this Summary table, review the details in Table 406.3 (Single Family), on page 4. Summary ofTable Q4O6.%and 406.3 |Heating F�|Non�|i��Qe�n��n� ��-eye�O� User Notes Optinn»" heating option 3 Electric resistance heat only - furnace or zonal -1.0 El 4 DHP with zonal electric resistance per option 3.4 0.5 E] F Credits - select ONE i Energy Energy Credit Option Descriptions energy option from each i Options category' 1.3 Efficient Building Envelope 0.5 2.1 Air Leakage Control and Efficient Ventilation 7 2.2 Air Leakage Control and Efficient Ventilation F 2.3 Air Leakage Control and Efficient Ventilation 1.5 17-1 2.4 Air Leakage Control and Efficient Ventilation 2.0 F 3.4 High Efficiency HVAC 3-5 High Efficiency HVAC 1.5 4.1 High Efficiency HVAC Distribution System 0.5 G1 [SEE ARCH NOTE #3!4 =32 4 2 High Efficiency HVAC Distribution System 1.0 pmscmptwrPam-Sinnlerunvty z0/8Washington State EnergyCodef{ 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 Orn, i I Energy Credit Option Descriptions (cont.) energy option from User Notes Options' each categoryd ,_ 5. 1' Efficient Water Heating 0.5 0 5.2 Efficient Water Heating 0.5 ID ISEE ARCH NOTE #46 f. 5.3 Efficient Water Heating 1.0 171 1 SA Efficient Water Heating 1.5 0 5.5 Efficient Water Heating 2.0 1 El 5.6 - Efficient- Water Heating 2.5__ 6.1e Renewable Electric Energy (3 credits max) 1.0 7.1 Appliance Package 0.5 ❑ Total Credits 1.5 EGalwl,' 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 I through 3 of this worksheet for submission to your building official. ;For Building Officials Only Prescriptive Path — Single Family 2018 Washington State Energy Code-R CGOURTY RESIDENCE ADDITION ALTERATION CHARLENE K. SMITH / REG. ARCHITECT #1213E 139 - 3RD AVE SOUTH 206) 450-9714 DMONDS, WA 98020 c.k.s comcast.net AWNING STYLE DOUBLE-GLAZEDm©mmm AWNING STYLE DOUBLE -GLAZED mmmmm CASEMENT STYLE • m©m©m D • • m©m©m STYLE DOUBLE -GLAZED mmmmm DOUBLE-GLAZEDAWNING CASEMENT STYLE m©©©m MMEME MMEME MMEME MMEME MMEM mmmmm VINYL SKYLIGHT DOUBLE -GLAZED