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2006 W7 inaton State Nonresidential Energy Code <br />Energy Code <br />Decision Flowchart Use this flowchart to determine if project qualifies for the optional Prescriptive Option. <br />for Prescriptive Option If not, either the Component Performance or Systems Analysis Options must be used. <br />1302 space Heat Type: For the purpose of determining building envelope <br />requirements. the foNchving two categories comprise all space heating types'. <br />Other: All other space beating system including gas, sole fuel, oil, and <br />propane space beating system and those system listed In the exception to <br />electric rexistence. (continued at right) <br />All Insulation Installed? <br />Below Grid Wall text) <br />R-10 <br />Below Ord Wall loth) <br />R-19 <br />Roof Over Attic <br />R-30 <br />All Other Roof <br />R-21 <br />Raised Floor <br />R-19 <br />Slab -On -Grade <br />R-10 <br />Radiant Floor <br />R-10 <br />Opaque Door <br />U-0.60 <br />Criteria OK? <br />(below) , <br />tG Mass Wall Insulation Rec <br />Mass Wall <br />U0.15IR5.74 <br />CMU Block <br />Ins. Cores <br />Wood Frame <br />R79 <br />Metal Framed <br />R79 <br />Wall R79 <br />July 2007 <br />START elements as the primary heating system including baseboard, radiant and <br />forced air units where the total electric resistance heat capacity exceeds 1 0 <br />♦I WW of the gross conditioned Boer area Exception: Heat pumps and <br />J� terminal electric resistance heatmgm variable air volume distribution systems <br />Electric <br />Resistance Ye:�-- <br />Heal? <br />All Insulation <br />Installed? <br />Wood <br />Metal <br />Below Gro Wall (ted) <br />R-10 <br />R-10 <br />Below Grid Wall (olh) <br />R-19 <br />U-0.062 <br />Roof Over Attic <br />R-3e <br />U-0.031 <br />All Other Roof <br />R-30 <br />U-0.034 <br />Raised Floor <br />R-30 <br />U-0.029 <br />Slao-On-Grade <br />R-10 <br />R-10 <br />Radiant Floor <br />R-10 <br />R-10 <br />Glazing Criteria Met? <br />Glazing <br />Vert OH <br />Area % <br />UVal UVal SHGC <br />0-30% <br />0.65 0.70 0.45 <br />3045% <br />0.45 0.60 0.40 <br />>45% <br />Not Allowed <br />3 Wall R1 <br />wood, or <br />Glazing Criteria Met? <br />Glazing Vert OH <br />Arta % Uval UVal SHGC <br />0.30% 040 0.60 0.40 <br />>30 Not Allowed <br />is prescr ptive , Yes <br />L _,[ Path Allowed <br />Component Performance, <br />Systems Analysis, or <br />EnvStd Required <br />Criteria OK? <br />(below) <br />AG Mass Wall Insulation Req. <br />Klass Wall U0.157R5.7ci <br />CMU Block Ins Cores <br />Wootl Frame R79 <br />Metal Framed U0.062 <br />Concrete/Mason Option" I Wall Heat Capacity (HC) <br />Assembly, Descholion I Assy lag I IIC" I .Area (sfj I IC x Area <br />Totalsi <br />Area weighted HC. divide total of (HC x area) by Total <br />'If the area <br />weighted heat <br />capacity (HC) of <br />the total above <br />grade wall is a <br />minimum of 9 0, <br />the Concrete <br />Masonry Option <br />may be used. <br />"For framed <br />walls, assume <br />HC=1.0 unless <br />calculations are <br />provided, for all <br />other walls, use <br />Section 1009. <br />4& <br />