Maximum Window U-value with 90% AFUE space heatin' and R-10 Foundation Wall Insulation -q
<br /> Max.Total Window and Door Area I 1 3
<br /> as a percent of exposed wall 10% 12% 14% 16% 18% 20% 22% 24% 26% 28%
<br /> Wall Type: ! "
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<br /> 2x4,R-13 insulation, <R-5 sheathing 0.37 0.37 0.33 0.28 0.25 022 0.20 0.18 0,17 0.15
<br /> 2x4,R-13 Insulation,>R-5 sheathing 0.37 0.37 0.37 0.37 0.37 0.33 0.30 0.27 0.25 0.23
<br /> 2x4,R-13 insulation,>R-7 sheathing 0,37 0,37 0.37 0.37 037 0.36 0.33 0.30 0.27 0.25 D
<br /> 2x6,R-19 Insulation, <R-5 sheathing 0.37 0.37 ' 0.37. 0.37 0.36 _ 0.32 0.29 - 0.27 0.24 0.23 iz
<br /> 2x6 ,R-19 insulation, >R-5 sheathing 0.37 ,0.37 0.37 ' 0• .37 I 0.37 0.39 0.35 0.32 0.29 0.27 • c
<br /> 2x6,R-21 Insulation, <R-5 sheathing 0.37 0.37 0.37 0• .37 0.37 0.35 0.31 0.29 0.26 0,24 pip
<br /> 2x6,R-21 insulation,>R-5 sheathing 0,37 0,37 0.37 , 0.37 0.37 0.37 .0.36 0.33 I 0,30 0.28 t7
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<br /> Maximum Window U-value with 90% AFUE space heatin. and R-5 up to R-10 Exterior Foundation Wall insulation
<br /> Max. Total Window and Door Area
<br /> as a percent of exposed wall 10% 12% 14% • 16% 18% 20% 22% 24% 26% ' 28% 0
<br /> Wall Typo:
<br /> 2x4,R-13 insulation,<R-5 sheathing 0.37 , 0.36 0,30 0.26 0.23 0.20 0.18 0.16 0.15 0.14 m
<br /> 2x4,R-13 insulation, >R-5 sheathing 0.37 0.37 0.37 . 0• .37 0.35 0.31 0.28 0.25 0.23 .' 0.22 0
<br /> 2x4,R-13 insulation,>R-7 sheathing 0.37 0.37 0.37 0.37 0.37 0.34 , 0.31 0.28 0.26 0.24
<br /> 2x6,R-19 insulation,<R-5 sheathing . 0.37 0.37 0.37 0.37 0.34 . 031 ' 0.28 0.25 ' 0.23 0.21 m
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<br /> 2x6,R-19 insulation, >R-5 sheathing 0.37 0.37 -0,37 0.37 0.37 0.37 0.33 0.30 0.28 0.26
<br /> 2x6,8-21 insulation,<R-5 sheathing 0.37 0.37 0.37 0.37 0.37 0.33 • 0.30 0.27 ' 0.25 0.23 w
<br /> 2x6,8-21 insulation,>R-5 sheathing ' 0.37 0.37 0.37 0.37 0.37 0.37 0.35 0.31 0.29 0.27 °D
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<br /> Maximum Window U-value with 90% AF1JE space heatin and R-19 or_greater foundation wall insulation
<br /> Max.Total Window and Door Area
<br /> as a percent of exposed wall 10% 12% 14% 16% 18% 20% 22% 24% 26% 28%
<br /> Wall Typo: . -1,
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<br /> 2x4,R-13 insulation, <R-5 sheathing 0.37 0.37 0.34 0.29 0.26 0.23 0.21 0,19 0.17 0.16 r
<br /> 2x4,R-13 insulation, >R-5 sheathing 0.37 0.37 0,37 0.37 ; 0.37 0.34 0.31 0.28 0• .26 ' 0.24 m
<br /> 2x4,R-13 insulation,>R-7 sheathing 0.37 0.37 0.37 4 0.37 10.37 0.37 0.34 0.31 ' 0.28-1 0.24
<br /> I2x6,R-19 insulation,<R-5 sheathing 0.37 0.37 0.37 1, 0.37 0.37 0.34 -L 0.30 0.28 0.25 0.23
<br /> 2x6,R-19 insulation,>R-5 sheathing 0.37 0.37 0.37 0.37 0,37 0.37 0.36 0.33 0• .30 0.28 m
<br /> 2x6,R-21 insulation, <R-5 sheathing 0.37 0.37 0.37. 0.37 0,37' 0.36 _ 0.32 0.29 0.27 0.25 iv insulation,>R-5 sheathing 0.37 0.37; 0.37 0.37 I 0.37 . 0.37 0.37 0.34 0.31 0.29 v
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<br /> 'Chis i s a summary only. Other rernirements may apply. Sec the Minnesota Energy Code. f J�"'�
<br /> Questions? Call Department aPablic Service 1n1oranation Center at 651 296 5175 or 800 657 3710. * f" [e Page 41
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