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: � <br /> Exterior Envelope Average "U" Computation <br /> Site Address: 425 Hunter Pass <br /> Contractor: Jyland Development, Inc. 08-Sep-97 404-0600 <br /> 4. Total Exposed Roof/Ceiling Calculations: <br /> Total exposed roof/ceiling <br /> area 1,866 sq ft <br /> j) Total skylight area sq ft x "U" = 0.00 <br /> k) Total roof/ceiling framing <br /> area 187 sq ft x "U" 0.025 = 4.60 <br /> I) Total net insulated <br /> roof/ceiling area 1,679 sq ft x "U" 0.022 = 36.77 <br /> #4 TOTAL j) thru I) 41.38 <br /> Alternate 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 sums of items#1 and #2. <br /> #1: 493.90 + #2: 48.52 = 542.42 <br /> #3: 370.55 + #4: 41.38 = 411.92 <br /> CERTIFICATION <br /> I hereby certify that I have calculated the "U" factors and "R" values <br /> herein and that the building here described meets or exceeds the State of <br /> Minnesota Energy Conservation Act. <br /> Date: �/ `7 <br /> (Signature) <br />