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Washington Stcte Energy Code—ResideridU: Prescriptive Energy Code Compliance for All Climate Zones in Washington Single Family—New &Additions(effective February 1,2021) _ These requirements apply to all IRC building types, including detached one- and two-family dwelllings and multiple single-family dwellings(townhouses). Project information Contact information �Chan.pheung Custom Home I li III "'1 Instructions: This single-family project will use the requirements of the Prescriptive Path below and incorporate the minimum values listed. Based on tl'ie size of the structure,the appropriate number of additional credits are checked as chosen by the permit applicant. Provide all information from t:ie following tables as building permit drawings:Table R402.1-Insulation and Fenestration Requirements by;Component,Table R41::16.2-Fuel Normalization Credits and 406.3-Energy Credits. Authorized Representative [ Date All Climate Zones(Table R402.1.1) R-Value a U-Factor Fenestration U-Factor b n;a 0.30 Skylight U-Factor b n;a 0.50 Glazer) Fenestration SHGC bje n;a n/a Ceilingil a 44:' 0.026 Wood Frame Wall @,h 21 int 0.056 Floor 30 0.029 Below Grade Wall`'h 10/15/2:1 int+TB 0.042 Slab`I. R-Value& Depth 10, >ft n/a A.values are minimums. U-factors and SHGC are maximums.When insulatic n is installed in a cavity that is less a than the label or design th ckness of the insulation, the compressed R-value of the insulation from Appendix Table A101.4 shall not be less than the R-value spe,::ified in the table. b The fenestration U-factor;:olumn excludes skylightti. "10/15/21+STB" 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 betwei?n the slab and the basement wall at c the interior of the baseme"it wall. "10/15/21+STB" shall be permitted to be met with R-13 cavity insulation on the interior of the baseme in wall plus R-5 continuous insulation on the interior or exterior of the wall. "STB" means R-5 thermal break Iaetween floor slab and basement wall. d R.10 continuous insulation is required under heated slab on grade floors.See Section R402.2.9.1. F'::r single rafter-or joist-vaulted ceilings,the insulation may be reduced to l -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 comp ying with Section R503.1.1. If foam plastic is used; it shall meet the requirements for thermal barriers protecting foam plastics. r log structures developed in compliance with Standard ICC 400, log walls shall meet the requirements for g ci'mate zone 5 of ICC 400. Int.(intermediate framing) denotes framing and im:ulation 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 1