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n <br />u <br />rJ'tarl5tdte r.erg ,r ..,-d- <br />Prescriptive Energy Code Compliance for All Climate Zones in Washington <br />Single Family — New & additions (effective February 1, 2021) <br />Table 406.3 —Enema Credits (Simile Family <br />on Description Credits SF <br />__._ <br />1. EFFICIENT BUILDING ENVELOPE OPTIONS <br />Dnl,q one option from Items 1. i through 1.? may be selected in this catenary_ <br />compliance with the conductive UA targets is dernonstrated using Section P.402.1_4r Total UA alternative; where (1- <br />(Proposed UA,`Target UA)] >the required %UA reduction. <br />Prescriptive compliance is based on Table R402.1.1 with the fallowing modifications: <br />1.1 <br />Vertical fenestration U =0.24 <br />compliance is'bas�ed c n Table R402.1.1 with the fol,o,ti inE modifications: <br />0.5 <br />1`0 <br />1'2 <br />lPrescriptive <br />'Vertical fenestration U = 0.20 <br />_ <br />Prescriptive compliance is based on Table 'R402.1.1 with the following modifications - <br />Vertical fenestration U = 0.28 <br />Floor R-38 <br />1-3 <br />Slab on grade R-10 perimeter and underentire stab below grade slab A-10 perme sr and <br />0-5 <br />under entire slab or <br />compliance based on Section R402.1.4: Reduce the Total conductive UA b_�% <br />Prescriptive compliance is based on Table R402.1.1 with the follo•.Ving modifications: <br />Vertical fenestration U = 0.25 <br />Wall R-21 plus R-4 ci <br />Floor R.-38 <br />1-4 <br />Basement wall R-21 int plus R-5 ci <br />1-0 <br />slab on grade R-10 perimeter and under entire slab Below grade slab R-10perimeterand <br />under entire slab or <br />compliance based on Section R402.1.4: Reduce the Total conductive UA by 15% <br />Prescriptive compliance is based on Table R402.1.1 with the following modifications: <br />vertical fenestration U = 0.22 <br />Ceiling and single -rafter or foist -vaulted R-49 advanced <br />Wood frame wall P.-21 int plus R-12 ci Floor R-3 <br />1.5 <br />Basement wall R-21 Int plus R.-12 ci <br />2.0 <br />Slab on grade R-10 perimeter and under entire slab Below grade slab R- 0 perimeter and <br />under entire slab or <br />Compliance based on Section R402.1.4 Reduce the Total conductive UA by 30% <br />Prescriptive compliance is based on Ta'ole R402.1.1 with the following modifications. <br />vertkal fenestration U = 0.19 <br />Ceiling and single -rafter or joist­,raulted P-60 advaneed <br />Wood frame wall R-21 int plus R-16 ci <br />16 <br />Floor R-48 <br />3.0 <br />Basement wall R-21 int plus R-16 ci <br />Slab on grade R-20 perimeter and under entire slab Below.grade slab R-20 perimeter and <br />under entire slab or <br />com pliance based on Section R402.1.4: Reduce the Total conductive UA by 40%. <br />Advanced framing and raised heel trusses or rafters <br />vertical Glazing U-0.28 <br />1.7 <br />R-49 Advanced (U-0.020) as listed in Section A102.2.L, Cedlir►gs below a vented attic and <br />0 5 <br />R-49 vaulted ceilings with full height of uncompressed insulation e:rtending over the wall <br />top plate at the eaves_ <br />