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Determine"U"value of each wall segment. <br /> j. 0.00 x"U" 0.450 = O.OQ <br /> k. 134.00 x"U" 0.020 = 2.68 <br /> i. 1250.00 x"U" 0.020 = 25.00 <br /> 4. Total = 27.68 <br /> If total of#4 is the same as,or less than#2,you have met the intent of <br /> of SBC 6006(c)1. <br /> Atternate Building Envelope Design <br /> To utilize the total envelope system method,the values established by the <br /> sum of items#3 and#4 shall not be greater than the sum of items#1 and#2. <br /> 1. 386.75 +2. 35.93 = 422.69 <br /> 3. 347.24 + 4. 27.68 = 374.92 <br />