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REVIEWED BLD2024-0367+Energy_Calculations+3.14.2024_1.41.53_PM+4133054RECEIVED REVIEWED BY CITY j BUILDING DEPARTEDMONDMENT' ' WSU Code Compliance Calculator, WSEC 2018 BUILDING DEPARTMENT; p ............................................: Mar 14 2024 BLD2024-0367 CITY OF EDMONDS Project Information nPPAPTKAPKIT Jones Residence Addition 3 Total Credits Contact Information Mike Currier - Sgima Drafting & Design (360)464-5373 3515 Long Lake Dr SE, Olympia, WA 98503 UA Reduction = 1.87, Proposed UA is better than baseline by 1 Whole House Mechanical Ventilation Airflow Rate: 120 CFM with Run Time Percent of 50%, Unbalanced, Not Results assume your inputs are complete and correct. Results do not constitute an approval. Analysis should be reviewed by your AHJ. ANALYSIS SET UP What code compliance pathway are you using? Prescriptive Path Compliance with Option 1 referred Project Building Type? Addition Occupancy Type? R3 Single family homes and duplexes Code Version? WSEC 2018 Classification: Small Dwelling Unit -- 1433 sq. ft. Baseline Description: Code Baseline - Baseline and proposed window areas are equal. About Your Selection: Up to 15 sf exempt window and 24 sf exempt door allowable RESULTS - Comparison of Baseline and Proposed Design Component Performance. R occupancies Doors U = Overhead Glazing U = Vertical Glazing U = Flat/Vaulted Ceilings U = Wall (above grade) U = Floors over Crawlspace U = Slab on Grade F = Below Grade Wall U = Below Grade Slab F = Baseline U Area UA 0.300 0 0.0 0.500 24 12.0 0.300 223 66.9 0.027 1,409 38.0 0.056 76 4.3 0.029 430 12.5 0.540 0 0.0 0.042 0 0.0 0.570 1 01 0.0 Proposed Design U Area UA 0 0.0 0.500 24 12.0 0.300 223 66.9 0.027 1,409 38.0 0.054 76 4.1 0.025 430 10.8 0 0.0 01 0.0 01 0.0 Baseline UA Total 133.7 Proposed UA Total 131.8 Required Credits 3.0 Proposed Credits 3.0 from Tables 406.2 and 406.3 UA Percent Reduction 1.4 UA Reduction 1.9 If the Proposed UA <_ the Target UA, and the Proposed Credits from Table 406 are >_ those required in Section R406, then the home meets the WSEC. Table R406.2 Fuel Normalization Credits Fuel Normalization Total Credits System No. Full Description Select System Type Credits 406.2 Energy Credits 406.3 406.2 & 406.3 For an initial heating system using a heat pump that meets federal standards for the equipment listed in Table C403.3.2(1)C or C403.3.2(2) OR Air to water heat pump units that are configured to provide both heating and cooling and are rated in accordance Wth AHRI 2 550/590. Heat pump with electric resistance or fossil -fuel supplemental heat requires Heat Pump, air-to-air or air to water 1.0 2.0 3.0 compliance with WSEC 403.1.2 "Heat Pump Supplementary Heat". Packaged Terminal Heat Pumps (PTAC-HP) requires an HSPF tested value (See SBC Interpretation dated December 2020). Table R406.3 Energy Credits Energy Option No. Category Select Options Credits Brief Description of Selected Options* 1 Efficient Building Envelope 0.0 2 Air Leakage Control and Efficient Ventilation 0.0 3 High Efficiency HVAC Option 3.6 2.0 Ductless Split System with no electric resistance in primary living areas 4 High Efficiency HVAC Distribution System NA 5.1 Efficient Water Heating 0.0 5.2-5.6 Efficient Water Heating 0.0 6 Renewable Electric Energy kWh 0.0 7 Appliance Package 0.0 Energy Credits 2.0 *Refer to WSEC 2018 Table R406.3 for complete option descriptions and requirements 2018_W SU_C3_20220215_Master.xlsm 3/13/2024 1 WSU Code Compliance Calculator, WSEC 2018 THERMAL ENVELOPE DETAILS - Proposed Design IW Conditioned Floor Area of Addition, Proposed Design 1,433 sq. ft Classification Small Dwelling Unit Notes Exterior Doors Plan Component Door Width Hei ht ID Description Ref. U Qt. Feet 1nc6 Feet 1nc6 Area UA Exempt 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 Sum of Area and UAI 0 0.0 Exterior Doors Area Weighted U Overhead Glazing Plan ID Component Description Ref. Glazing U Qt. Width Hei ht Area UA Feet T 1nc6 Feet I 1nc6 2 I wood, a=0.05 argon Code Baseline 10-6E 0.50 3 2 ° 4 ° 24 12 0 0 0 0 Sum of Area and UA 241 12 Overhead Glazing Area Weighted U 0.500 Vertical Glazing Schedule Rows to Show 8 Plan Component Glazing Width Hei ht Feet T 1nc6 Feet I 1nc6 ID Description Ref. U Qt. Area UA Exempt U=0.30 Code Baseline Table 406.2 0.30 1 3 ° 4 ° 12.0 3.60 1 U=0.30 Code Baseline Table 406.2 0.30 1 3 ° 4 ° 12.0 3.60 2 U=0.30 Code Baseline Table 406.2 0.30 4 5 ° 4 ° 80.0 24.00 3 U=0.30 Code Baseline Table 406.2 0.30 4 2 3 4 ° 36.0 1 10.80 4 U=0.30 Code Baseline Table 406.2 0.30 2 4 6 4 ° 36.0 10.80 5 U=0.30 Code Baseline Table 406.2 0.30 2 2 ° 4 6 18.0 5.40 6 U=0.30 Code Baseline Table 406.21 0.30 1 3 ° 5 ° 15.0 4.50 7 U=0.30 Code Baseline Table 406.21 0.30 1 6 ° 21 ° 12.0 3.60 8 U=0.30 Code Baseline Table 406.21 0.30 1 1 4 '1 31 6 14.0 4.20 Sum of Area and UA (excluding exempt window) 223.0 66.9 Vertical Glazing Area Weighted U 0.300 Vertical Glazing and Doors Area Weighted U 0.300 FlatNaulted Ceilings Plan ID Component Description Ref. Attic U Area UA R49 blown Attic STD baffled Code Baseline, Option 1.1-1.4 10-7 0.027 1,409 38.0 Sum of Area and UA 1,409 38.0 Walls Above Grade) ���E Plan ID Component Description Ref. Wall U Net Area UA R21 cavil +RO foam INT 2X6W La Code Baseline 10-5 0.054 76 4 Sum of Area and UA 76 4 Floor over crawl or exterior Plan Coponent Floor UA ID Description Ref. U Area 2018_W SU_C3_20220215_Master.xlsm 3/13/2024 WSU Code Compliance Calculator, WSEC 2018 R38 vented Joist 16oc O tions 1 a-1 c, 1.3-1.5 10-3 0.025 ■ 430 11 Sum of Area and UA 430 11 Slab on Grade less than 2 feet belowgrade) Plan ID Component Description Ref. Slab F Slab Perim FP Sum of Perimeter and FP1 01 0 Below Grade Walls and Slabs Plan ID Component Description Ref. Wall U Wall Area Wall UA Slab F Slab Perim Slab UA Sum of Area, Length and UA 01 0.0 01 0 Number of Bedrooms 2 Run -Time Percent in Each 4-Hour Segment 50% Is the system Balanced? Unbalanced Is the system Distributed? Not Distributed Ventilation Code Section IRC, Chapter 15 Whole House Mechanical Ventilation Airflow Rate 120 CFM HVAC Thermal Distribution System Download RS-33 (2018) htt ://www.ener .wsu.edu/Documents/Duct%20Testin %20Standards%2 Is this a hydronic heating system? INO Location of Ducts jUnducted Location of Air Handler I Unconditioned Space Is Duct Testing Required? No Links to Download Forms, Checklists and Other Resources Link Compliance Certificate Compliance Certificate Instructions Insulation Certificate for Residential New Construction Insulation Certificate Duct Testing Affadavits Existing Construction Affidavit, Existing New Construction Affidavit, New Prescriptive Checklist for 2018 WSEC Prescriptive Checklist Alterations (Remodel) Worksheet Worksheet Heatina Svstem Sizina - Proposed Design Try Out BetterBuiltNW's HVAC Sizing Tool: httr)s://betterbuiltnw.com/resources/hvac-sizina-tool Nearest Weather Station Indoor Design Temperature Outdoor Design Temperature Design Temperature Difference (AT) Conditioned Floor Area of Addition, Proposed Design Conditioned Volume Leave blank to use default of 8.5 ft. ceiling height HVAC System Type Location of HVAC Distribution System 70 F 24 F 46 F 1,433 ft2 12,181 ft3 Heat Pump Unducted Sum of UA, including exempt door and window 135 Envelope Heat Load Sum of UA X AT 6,229 Btu / Hour Air Leakage Heat Load 6,051 Btu / Hour ((Volume X 0.6) X AT) X .018)) Building Design Heat Load 12,280 Btu / Hour Air Leakage + Envelope Heal Loss Building and Duct Heat Load 12,280 Btu / Hour For ducts located in unconditioned space: Sum of Building Heat Loss X 1.1 For ducts located in conditioned space or ductless: Sum of Building Heat Loss X 1 Maximum Heat Equipment Output 15,350 Btu / Hour 2018_W SU_C3_20220215_Master.xlsm 3/13/2024 3 WSU Code Compliance Calculator, WSEC 2018 Building and Duct Heat Loss X 1.25 for heat pumps Building and Duct Heat Loss X 1.40 for all other systems 2018_W SU_C3_20220215_Master.xlsm 3/13/2024 Alterations Worksheet - 2018 Washington State Energy Code Project Information Contact Information Jones Residence Addition 19303 88th Ave W Edmonds, WA 98026 Mike Currier (360) 464-5373 3515 Long Lake Dr SE, Olympia, WA 98503 The WSEC requirements for alterations are located in Chapter 5 of the code text. Alterations (remodels) do not need to obtain energy credits from Table R406.3 Additions must meet the requirements for new construction. This includes nonconditioned space being altered to become conditioned space. Will the wall cavities be exposed? Yes No If yes: Exposed wall cavities must be insulated - 2 X 4 wall studs require R-15 insulation 2 X 6 wall studs require R-21 insulation Will the roof/ceiling framing cavities or attic be exposed? Yes No If yes: Exposed roof/ceiling assemblies must be insulated - Vaulted ceilings: Insulate to the full depth of the framing member while allowing for the minimum 1" ventilated space Flat ceilings: Install R-49 insulation or what the attic space can accommodate based on the roof pitch Will the floor framing cavities be exposed? Yes No If yes: Exposed floor cavities must be insulated to R-30 Are the windows and/or doors being replaced? Yes No (includes both window or door and frames) If yes: New windows and doors must have an area weighted average U-factor of <_0.30 Will the heating or cooling system be replaced? Yes No If yes: New equipment must meet current requirements and ducts need to be tested Will the hot water system be altered? Yes No If yes: New water heating equipment must meet current code requirements Are more than 50% of the light fixtures being changed? v Yes No If yes: 75% of all lamps must be high efficacy (LED or CFL) R503.1.1 Building envelope. Building envelope assemblies that are part of the alteration shall comply with Section R402.1.1 or R402.1.4, Sections R402.2.1 through R402.2.11, R402.3.1, R402.3.2, R402.4.3 and R402.4.4. Exception: The following alterations need not comply with the requirements for new construction provided the energy use of the building is not increased: 1. Storm windows installed over existing fenestration. 2. Existing ceiling, wall or floor cavities exposed during construction provided that these cavities are filled with insulation. 2x4 framed walls shall be insulated to a minimum of R-15 and 2x6 framed walls shall be insulated to a minimum of R-21. 3. Construction where the existing roof, wall or floor cavity is not exposed. 4. Roof recover. 5. Roofs without insulation in the cavity and where the sheathing or insulation is exposed during reroofing shall be insulated either above or below the sheathing. 6. Surface -applied window film installed on existing single pane fenestration assemblies to reduce solar heat gain provided the code does not require the glazing fenestration to be replaced. R503.1.1.1 Replacement fenestration. Where some or all of an existing fenestration unit is replaced with a new fenestration product, including sash and glazing, the replacement fenestration unit shall meet the applicable requirements for U-factor and SHGC in Table R402.1.1. Where more than one replacement fenestration unit is being installed, an area -weighted average of the U-factor and SHGC of all replacement fenestration shall be permitted to be used to demonstrate compliance. R503.1.2 Heating and cooling systems. New heating, cooling and duct systems that are part of the alteration shall comply with Section R403. Exceptions: 1. Where ducts from an existing heating and cooling system are extended, duct systems with less than 40 linear feet in unconditioned spaces shall not be required to be tested in accordance with Section R403.2.2. 2. Existing duct systems constructed, insulated or sealed with asbestos. R502.1.1.2 Heating and cooling systems. New heating, cooling and duct systems that are part of the addition shall comply with Section R403. Exception: The following need not comply with the testing requirements of Section R403.3.3: 1. Additions of less than 750 square feet. Duct systems that are documented to have been previously sealed as confirmed through field verification and diagnostic testing in accordance with procedures in WSU RS-33. 3. Ducts with less than 40 linear feet in unconditioned spaces. 4. Existing duct systems constructed, insulated or sealed with asbestos. R503.1.3 Service hot water systems. New service hot water systems that are part of the alteration shall comply with Section R403.5. R503.1.4 Lighting. New lighting systems that are part of the alteration shall comply with Section R404.1. Exception: Alterations that replace less than 50 percent of the luminaires in a space, provided that such alterations do not increase the installed interior lighting power. R503.2 Change in space conditioning. Any nonconditioned or low -energy space that is altered to become conditioned space shall be required to be brought into full compliance with this code.