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2021.0120.SF0014 energy code2018 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 A 2. Medium Dwelling Unit: All dwelling units that are not included in #1 or #3 3. Large Dwelling Unit: 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 8406.2 Heating , Fuel Normalization Descriptions Options Credits - select ONE Notes heating option 1 Combustion heating minimum NAECAh 0.0 ! ❑ 2 _ Heat pump` 1,0 X. 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 j Energy Credit Option Descriptions Options Credits - select ONE energy option from each categoryd 1.1 Efficient Building Envelope - 1.2 Efficient Building Envelope - 1.3 j Efficient Building Envelope _ 1.4 Efficient Building Envelope 0.5 i ❑ I i --r i 1.0 l 0.5 1.0 ❑ I j 1.5 1 Efficient Building Envelope 2.0 ❑ 1.6 ' Efficient Building Envelope 3.0 ❑ 0.5 0 -- 0.5SL 1.7 °Efficient Building Envelope -01 2.1 1 Air Leakage Control and Efficient Ventilation 2.2 Air Leakage Control and Efficient Ventilation 1.0 ❑ 2.3 Air Leakage Control and Efficient Ventilation 1.5 i ❑ 2.4 Air Leakage Control and Efficient Ventilation 2.0 ❑ 3.1' ; High Efficiency HVAC 1.0 ❑ 3.2 High Efficiency HVAC 1.0 3.3- High Efficiency HVAC i 1.5 ❑ 1.5 I ❑ _ 3.4 High Efficiency HVAC j _ 3.5 1 High Efficiency HVAC 1.5 ❑ 3.6' )High Efficiency HVAC LJ 2.0 ❑ 0.5 ❑ E1.0DK 4.1 High Efficiency HVAC Distribution System 4.2 High Efficiency HVAC Distribution System Prescriptive Path - Single Family 2018 Washington State Energy Code -R 2018 Washington State Energy Code – Residential Prescriptive Energy Code Compliance for NI Climate Zones In Washington Single Family – New & Additions (effective February 1, 3021) Summary of Table R406.2 (cont.) – Energy Options 5 id ...__—.-_.__.------- ---- -- Energy Credit Option Descriptions (cont.) `— Efficient Water Heating ----..._-- -- Credits -suet ONE energy option from each catego_ 0 5 ❑ -- User Notes _ 5.2 Efficient Water Heating 0 5 ❑ 5.3 5.4 5.5 Efficient Water Heating Efficient Water Heating Efficient Water Heating 1.0 1.5 2.0 ❑ ❑ f 5.6 _ Efficient Water Heating 2.5El _ 6,1e Renewable Electric Energy (3 credits max) 1.0 _---- — [� 7.1 Appliance Package 0.5 �- -_ Total Credits Calculate Total clear Pnrm 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 C4033.2(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. Prescriptive Path –Single Pamily 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) 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 e P v �+ bey& J 1 _. iaPJ- f - 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 RepresentativeDate 4/ �y All Climate Zones ("table R402.1.1) _ R -Value a U -Factor a Fenestration U -Factor b n/a 0.30 j Skylight U -Factor _ n/a 0S0 - Glazed Fenestration SNGC b" n/a I n/a Ceiling 2 49 0.026 _- Wood Frame Wall g.h 21 int 0.056 Floor 30 j - --- 0.029 Below Grade Wall `-1 10/15/21 int +TB j 0.042 Slab 4,f R -Value & Depth 10, 2 ft n/a R -values are minimums. U factors and SNGC 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 wail, 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 forthermal 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, _ IInt. (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 Simple Heating System Size: Washington State This healing 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. Pro'ect Infonnation Contact Information %v 7- AAA s n KF—TF—P-71_1 A 6; 360 1fkYl - Heating System Type: O All Omer systems O Heat Fump To see detailed instructions for each section, place your cursor on the word "Instructions" Design Temperature r Instructions Design Temperature Difference (AT) eT = Indoor (70 degrees) - Outdoor Resign Temp Area of Building Conditioned Floor Area instructions Conditioned Floor Area (sq ft) Average Ceiling Height Instructions Average Ceiling Height (ft) Glazing and Doors Instructions Select U -Factor Skylights Instructions Insulation Attic Instructions i Select R -Value _ + Single Rafter or Joist Vaulted Ceilings Ii751! uCti4175 ` V ;Select R -Value Above Grade Walls (see Figure p Conditioned Volume 2-11N Instructions [ !I Select R -Value + Floors = UA Instructions select R -value ,1-7 Below Grade Walls (see Figure r) _ Instructions �` Select A -value U -Factor Slab Below Grade rsee Figure v - UA Instructions I Select conditioning _. Slab on Grade (see Roure1) Instructions Select 11 -Value • Location of Ducts Instructions Unconditioned Space � + Figure 1. Ahave Grade Duct Leakage Coefficient 1.10 SumofUA 3 Envelope Heat Load �� 3 Btu f Hour Sum of UAxAT Air Leakage Heat Load © �'" Btu f Hour Volume x 0.6 x AT x Q.01 B! c 1 Building Design Heat Load 1 "t G Btu I Hour Air leakage { envelope heat loss p Building and Duct Heat Load 310 � { r Ir Btu ! Hour Ducts in unconditioned space: sum atbuildinq heat loss x 1.10 Ducts in conditioned space: sum of building heat loss x i Maximum Heat Equipment Output 3 1 .. Jq Btu ! Hour Building and duct heat loss x 1.40 for forced air fumace Building and duct heat loss x 1.25 for heat pump (0710/13) Conditioned Volume 2-11N 5' U -Factor X Area = UA ,1-7 1304 _ jvx•�� U -Factor X Area - UA 0.50 1 — 1.1 -Factor X Area - UA U -Factor X Area UA No selection 0 --- U -Fact Jor a vS U X /Area �I� UA �� . U -Factor X Area UA �0,is sr!a� ® U -Factor X Area UA No selection --- >=-Factor XLe� U No selection --- F -Factor X LengthI UA NO SeIEC[ICn --- Duct Leakage Coefficient 1.10 SumofUA 3 Envelope Heat Load �� 3 Btu f Hour Sum of UAxAT Air Leakage Heat Load © �'" Btu f Hour Volume x 0.6 x AT x Q.01 B! c 1 Building Design Heat Load 1 "t G Btu I Hour Air leakage { envelope heat loss p Building and Duct Heat Load 310 � { r Ir Btu ! Hour Ducts in unconditioned space: sum atbuildinq heat loss x 1.10 Ducts in conditioned space: sum of building heat loss x i Maximum Heat Equipment Output 3 1 .. Jq Btu ! Hour Building and duct heat loss x 1.40 for forced air fumace Building and duct heat loss x 1.25 for heat pump (0710/13) Window, Skylight and Door Schedule Project Information L4311- 7 11' e'r wer Frv" + O &IW' Ref. U -factor Exempt Swinging Door (24 sq. ft. max.)r-l'G Exempt Glazed Fenestration (95 sq. ft. max.) f� � 9" Vertical Fenestration (Windows and doors) Component Descrintinn Ref_ LJ.fartnr Contact Information lI- Width Height Qt. Feet Inch Feet Inch 101 b 10 f1 3 I'v Width Height Qt. Feet Inch Feet inch BE Area LIA '7�0 13, 2.v 1 ®� ®um M # 111 i� i1 111 11 111 11 111 11 111 11 111 11 111 1 1 1 rl I 1 111 1 1 I r1 11 111 11 111 1 r 1 Ir I 1 111 11 111 1 1 1 r1 11 111 11 111 11 111 11 111 Contact Information lI- Width Height Qt. Feet Inch Feet Inch 101 b 10 f1 3 I'v Width Height Qt. Feet Inch Feet inch BE Area LIA '7�0 13, 2.v Area I JA ®um M # 111 i� i1 111 11 111 11 111 11 111 11 111 11 111 1 1 1 rl I 1 111 1 1 I r1 11 111 11 111 1 r 1 Ir I 1 111 11 111 1 1 1 r1 11 111 11 111 11 111 11 111 Overhead Glazing (Skylights) Component Sum of Vertical Fenestration Area and UA Vertical Fenestration Area Weighted U = UA/Area Ker. u -tactor Width Height Qt. f=eet 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) Area UA 11 111 f l 1 11 1 1 f 11 f 1 f f1 1 1 ill i/ 111 Area UA 111 11 111 f l 1 11 1 1 f 11 1 1 f 11 1 1 1 If 111