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APPROVED BLD -BLD2020-1177+Energy_Calculations+10.30.2020_10.20.41_AMPrescriptive Energy Code Compliance for All Climate Zones in Washington Project Information Contact Information Plan 3112 This project will use the requirements of the Prescriptive Path below and incorporate the RECEIVED the minimum values listed. In addition, based on the size of the structure, the appropriate number of additional credits are checked as chosen by the permit applicant. NOV 05 2020 Authorized Representative All Climate Zones R-Value U-Factor Fenestration U-Factor" n/a 0.30 Skylight U-Factor n/a 0.50 Glazed Fenestration SHGC"" n/a n/a Ceilingk 4Y 0.026 Wood Frame Wallg,m,n 21 int 0.056 Mass Wall R-Value' 21/21 0.056 Floor 30 0.029 Below Grade Wall' 10/15/21 int + TB 0.042 Slab R-Value & Depth 10, 2 ft n/a Fable R402.1.1 and Table R402.1.3 Footnotes included on Page 2. Date CITY OF EDMONDS DEVELOPMENT SERVICES DEPARTMENT ..,.,.,.,.,..............................., REVIEWED BY CITY OF EDMONDS BUILDING DEPARTMENT Each dwelling unit in a residential building shall comply with sufficient options from Table R406.2 so as to achieve the following minimum number of credits: 1. Small Dwelling Unit: 1.5 credits ❑ Dwelling units less than 1500 square feet in conditioned floor area with less than 300 square feet of fenestration area. Additions to existing building that are greater than 500 square feet of heated floor area but less than 1500 square feet. ❑� 2. Medium Dwelling Unit: 3.5 credits All dwelling units that are not included in #1 or #3. Exception: Dwelling units serving R-2 occupancies shall require 2.5 credits. ❑3. Large Dwelling Unit: 4.5 credits Dwelling units exceeding 5000 square feet of conditioned floor area. ❑4. Additions less than 500 square feet: .5 credits Table R406.2 Summary Caption Description Credit(s) 1a Efficient Building Envelope 1a 0.5 lb Efficient Building Envelope lb 1.0 1c Efficient Building Envelope 1c 2.0 1d Efficient Building Envelope 1d 0.5 2a Air Leakage Control and Efficient Ventilation 2a 0.5 2b Air Leakage Control and Efficient Ventilation 2b 1.0 2c Air Leakage Control and Efficient Ventilation 2c 1.5 3a High Efficiency HVAC 3a 1.0 3b High Efficiency HVAC 3b 1.0 3c High Efficiency HVAC 3c 1.5 3d High Efficiency HVAC 3d 1.0 4 High Efficiency HVAC Distribution System 1.0 5a Efficient Water Heating 5a 0.5 5b Efficient Water Heating 5b 1.0 5c Efficient Water Heating 5c 1.5 5d Efficient Water Heating 5d 0.5 6 Renewable Electric Energy 0.5 1-1 El Fj 1-1 0 1.0 El 0 1.0 0 0.5 0 1.0 1200 kwh 0.0 Total Credits 3.50 *Please refer to Table R406.2 for complete option descriptions Table R402.1.1 Footnotes For SI: 1 foot .= 304.8 mm, ci .= continuous insulation, int .= intermediate framing. a R-values are minimums. U-factors and SHGC are maximums. When insulation is installed in a cavity which is less 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. The SHGC column applies to all glazed fenestration. "10/15/21.+TB" means R-10 continuous insulation on the exterior of the wall, or R-15 on the 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 the interior of the basement wall. "10/15/21.+TB" 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. "10/13" means R-10 continuous insulation on the interior or exterior of the home or R-13 cavity insulation at the interior of the basement wall. "TB" means thermal break between floor slab and basement wall. d R-10 continuous insulation is required under heated slab on grade floors. See R402.2.9.1. e There are no SHGC requirements in the Marine Zone. f Reserved. g Reserved. h Reserved. ' The second R-value applies when more than half the insulation is on the interior of the mass wall. Reserved. k For single rafter- or joist -vaulted ceilings, the insulation may be reduced to R-38. Reserved. m Int. (intermediate framing) denotes standard framing 16 inches on center with headers insulated with a minimum of R-10 insulation. Table R402.1.3 Footnote a Nonfenestration U-factors shall be obtained from measurement, calculation or an approved source or as specified in Section R402.1.3. Window, Skylight and Door Schedule Project Information Contact Information Plan 3112 Width Height Ref. U-factor Qt. Feet Inch Feet Inch Area UA Exempt Swinging Door (24 sq. ft. max.) I I I I I 1 0.01 0.00 Exempt Glazed Fenestration (15 sq. ft. max.) I I I I I 1 0.01 0.00 Vertical Fenestration (Windows and doors) Component Description Ref. U-factor Foyer 0.30 Den 0.30 0.30 Powder 0.30 Great Room 0.30 0.30 Dining 0.30 0.30 Mudroom 0.30 0.30 Stair 10.30 Laundry 0.30 Upper Entry 0.30 Bonus 0.30 0.30 Bedroom 4 0.30 Bedroom 3 0.30 Bedroom 2 0.30 Master Bath 0.30 Master Bedroom 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 Width Height Qt. Feet Inch Feet Inch Area UA MMEME MMEME MMEME MMEME MMEME MMEME MMEME MM■ E, ©M E, ©MEMO mm■©�; ©©■©� =MEMO =MEMO =MEMO =ME MMEME MMEME MMEME MME�� MMEME MENNINE MMEME MEN MMEME MMEME NEMEENO NEME�� MMEME INIMENNE ENMEMO MINE��� EMNEMO MMEME MENEME 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) 532.1 159.62 0.30 Area UA 1 532.11 159.62 Simple Heating S stem Size: Washington State This heating system sizing calculator is based on the Pres ive Requirements of the 2015 Washinciton State Enercy Coe SE and ACCA Manuals J and S_ This calculator will calcylate heating loads only. ACCA procedures for izin oli systems —should be used to determine cooling loads. The glazing (window) and door portion of this calculator assumes the installed glazing and door products have an area weighted average U-factor of 0.30, The incorporated insulation requirements are the minimum prescriptive amounts specified by the 2015 WSEC. Please fill out all of 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 call the WSU Energy Extension Program at (360) 956-2042 for assistance. Pro eci Information Contact Information Plan 3112 Heating System Tyre: O All Other systems O Heat Pump To see detailed instructions for each section, place your cursor on the word "Instructions". Design Temperature Instructions { Design Temperature Difference (AT) 46 1 Edmonds AT = Indoor (70 degrees) - Outdoor Design Temp Area of Building Conditioned Floor Area Instructions Conditioned Floor Area (sq ft) 3,112 Average Ceiling Height Conditioned Volume Instructions Average Ceiling Height (ft) 8.8 27,386 Glazing and Doors U-Factor X Area = UA msvucuons 0.30 532 159.60 Skylights U-Factor X Area = UA Instructions 0.50 Insulation Attic U-Factor X Area = UA Instructions R-49 -]� 0.026 2.024 52.62 Single Rafter or Joist Vaulted Ceilings U-Factor X Area UA Instructions Select R-Value � No selection 0 --- Above Grade Walls (see Figure 1) U-Factor X Area UA Instructions IW R-21 intermediate 0.056 2,880 161.28 Floors U-Factor X Area UA Instructions R-30 � I 0.029 2,024 58.70 J —i Below Grade Walls (see Figure 1) U-Factor X Area UA Instructions No Below Grade Walls in this project. � --- --' Slab Below Grade (see Fieure 1) F-Factor X Length UA Instructions No Slab Below Grade in this project. U Slab on Grade (see Figure 1) F-Factor X Length UA Instructions 19 No Slab on Grade in this project. i Location of Ducts Instructions Duct Leakage Coefficient Conditioned Space 1.00 Sum of UA 432.20 Envelope Heat Load 19,881 Btu/Hour Figure 1. SumofUAXAT Air Leakage Heat Load 13,605 Btu/Hour Volume 0.6XATX 016 AdovaGrade Building Design Heat Load 33,486 Btu / Hour �1. Air Leakage + Envelope Heal Loss Building and Duct Heat Load 33,486 Btu / Hour Ducts in unconddioned space: Sum of Building Heat Loss X 1 10 Ducts in conditioned space: Sum of Building Heat Loss X 1 Maximum Heat Equipment Output 46,881 Btu / Hour Building and Duct Heat Loss X 140 for Forced Air Furnace Building and Duct Heat Loss X 1.25 for Heat Pump (07101113)