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2018 Washington State Energy Code—Residential <br /> Prescriptive Energy Code Compliance for All Climate Zones in Washington. <br /> Single Family-New&Additions(effective February 1,2021) Version 1.0 <br /> These requirements apply to all IRC building types, including detached one- and two-family <br /> dwellings and multiple single-family dwellings(townhouses). <br /> Project Information Contact Information <br /> GETAHUN MULIGETA eMD Design <br /> 7814 E CASINO RD EVERETTT,WA 98203 larmias@emddesignpractice.com <br /> Instructions;This single-family project will use the requirements of the Prescriptive Path below and <br /> incorporate the minimum values listed. Based on the size of the structure,the appropriate number of <br /> additional credits are checked as chosen by the permit applicant. <br /> Provide all information from the following tables as building permit drawings:Table R402.1-Insulation and <br /> Fenestration Requirements by Component,Table R406.2-Fuel Normalization Credits and 406.3-Energy Credits. <br /> Authorized Representative Date <br /> ............. <br /> All Climate Zones Table R402 1.1 <br /> ( _. )-- I <br /> R-Value a i U Factor a <br /> .-... _ --- -- ..... -+ — ----.._ ........ . ---- -� <br /> ;Fenestration U-Factor a ... .............-......... .. n/a 0.30 .. --- -- - - ---.....rati..__._....-----..._.._..---- ._..........-_. _. l. ... <br /> 'Skylight U-Factor n n/a 0.50 <br /> - _ <br /> Glazed Fenestration SHGC be n/a . n/a <br /> - . <br /> Ceiling e 49 �- 0.026 - ----- <br /> Wo ... ._......_ ......__ ....—._._........... .... . . . _..._ _ .. .. . ..... _..._... -._..._._ - <br /> Floor 30 0.029 <br /> ---- ----t--- - - - - ..............._ _.................. <br /> _ -... .-. <br /> Below Grade Wall c.h 10/15/21 int+TB 0.042 <br /> -- -- <br /> Slab d,f R-Value& Depth 10, 2 ft n/a <br /> R-values are minimums. U-factors and SHGC are maximums.When insulation is installed in a cavity that is less <br /> a than the label or design thickness of the insulation,the compressed R-value of the insulation from Appendix <br /> Table A101.4 shall not be less than the R-value specified in the table. <br /> b The fenestration U-factor column excludes skylights. <br /> _ : .....- -.............. .................-....__ ..... _.... .__. . <br /> "10/15/21+5TB" means R-10 continuous insulation on the exterior of the wall, or R-15 continuous insulation on <br /> the interior of the wall,or R-21 cavity insulation plus a thermal break between the slab and the basement wall at: <br /> c the interior of the basement wall. "10/15/21+5TB"shall be permitted to be met with R-13 cavity insulation on <br /> the interior of the basement wall plus R-5 continuous insulation on the interior or exterior of the wall. "5TB" <br /> means R-5 thermal break between floor slab and basement wall. <br /> -_...._... ......... ......... <br /> d R-10 continuous insulation is required under heated slab on grade floors.See Section R402.2.9.1. <br /> - ........- _.-.._.— <br /> For single rafter-or joist-vaulted ceilings,the insulation may be reduced to R-38 if the full insulation depth <br /> e :extends over the top plate of the exterior wall <br /> R-7.5 continuous insulation installed over an existing slab is deemed to be equivalent to the required perimeter <br /> f slab insulation when applied to existing slabs complying with Section R503.1.1. If foam plastic is used, it shall <br /> meet the requirements for thermal barriers protecting foam plastics. <br /> For log structures developed in compliance with Standard ICC 400, log walls shall meet the requirements for <br /> g climate zone 5 of ICC 400. <br /> Int. (intermediate framing)denotes framing and insulation as described in Section A103.2.2 including standard <br /> h framing 16 inches on center,78%of the wall cavity insulated and headers insulated with a minimum of R-10 <br /> insulation. <br /> Prescriptive Path-Single Family 2018 Washington State Energy Code-R 1 <br />