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Exceptions: <br /> Continuous insulation for wood, metal framed, and mass walls are not required <br /> when at least one of the following conditions is met: <br /> 1. Walls have a covering with a reflectance of> 0.64. <br /> 2. Walls have overhangs with a projection factor equal to or greater than 0.3. <br /> The projection factor is the horizontal distance from the surface of the wall <br /> to the farthest most point of the overhang divided by the vertical distance <br /> from the first floor level to the bottom most point of the overhang. <br /> 3. Concrete, CMU, and similar mass walls are 6 inches or greater in <br /> thickness. <br /> The R-value of integral insulation installed in concrete masonry units shall not be <br /> used in determining compliance with Table C402.1.3. <br /> "Mass walls" shall include walls: <br /> 1. Weighing not less than 35 psf(170 kg/m2) of wall surface area. <br /> 2. Weighing not less than 25 psf(120 kg/m2) of wall surface area where the <br /> material weight is not more than 120 pcf(1900 kg/m3). <br /> 3. Having a heat capacity exceeding 7 Btu/ft2• °F (144 kJ/m2• K). <br /> 4. Having a heat capacity exceeding 5 Btu/ft2• °F (103 kJ/m2• K), where the <br /> material weight is not more than 120 pcf(1900 kg/m3)." <br /> (11) Table C402.4 from the International Energy Conservation Code is deleted in its <br /> entirety and replaced with the following: <br /> "TABLE C402.4 <br /> BUILDING ENVELOPE FENESTRATION <br /> MAXIMUM U-FACTOR AND SHGC REQUIREMENTS - <br /> CLIMATE ZONE 1 <br /> CLIMATE ZONE 1 <br /> Vertical fenestration <br /> U-factor <br /> Fixed fenestration 0.50 <br /> Operable fenestration 0.65 <br /> Entrance doors 1.10 <br /> 8 <br />