Laserfiche WebLink
5-85 HAWAII COUNTY CODE <br />Exceptions: <br />Continuous insulation for wood, metal framed, and mass <br />walls are not required when at least one of the following <br />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 <br />greater than 0.3. The projection factor is the horizontal <br />distance from the surface of the wall to the farthest most <br />point of the overhang divided by the vertical distance from <br />the first floor level to the bottom most point of the <br />overhang. <br />3. Concrete, CMU, and similar mass walls are 6 inches or <br />greater in thickness. <br />The R -value of integral insulation installed in concrete <br />masonry units shall not be used in determining compliance <br />with Table C402.1.3. <br />"Mass walls" shall include walls: <br />1. Weighing not less than 35 psf (170 kg/m2) of wall <br />surface area. <br />2. Weighing not less than 25 psf (120 kg/m2) of wall <br />surface area where the material weight is not more <br />than 120 pcf (1900 kg/m3). <br />3. Having a heat capacity exceeding 7 Btu/ft2 • °F (144 <br />kJ/m2 • K). <br />4. Having a heat capacity exceeding 5 Btu/ft2 • °F (103 <br />kJ/m2 • K), where the material weight is not more <br />than 120 pcf (1900 kg/m3)." <br />(11) Table C402.4 from the International Energy Conservation Code is deleted in <br />its entirety and replaced with the following: <br />SUPP. 8 (7-2020) <br />"TABLE C402.4 <br />BUILDING ENVELOPE FENESTRATION <br />MAXIMUM U -FACTOR AND SHGC REQUIREMENTS - <br />CLIMATE ZONE 1 <br />CLIMATE ZONE <br />1 <br />Vertical fenestration <br />U -factor <br />Fixed fenestration <br />0.50 <br />Operable fenestration <br />0.65 <br />Entrance doors <br />1.10 <br />5-114 <br />