Laserfiche WebLink
§ 5-85 <br />HAWAII COUNTY CODE <br />(32) TABLE R402.1.2 of the International Energy Conservation Code is deleted in <br />its entirety and replaced with the following: <br />"TABLE R402.1.2 <br />INSULATION AND FENESTRATION REQUIREMENTS BY COMPONENTa <br />CLIMATE <br />ZONE <br />FENESTRATION <br />U-FACTORb <br />SKYLIGHT <br />U-FACTORb <br />GLAZED <br />FENES- <br />TRATION <br />SHGC b e, g <br />CEILING R- <br />VALUEd <br />WOOD <br />FRAME <br />WALL <br />R -VALUE d <br />MASS <br />WALL <br />R -VALUE e,, <br />FLOOR <br />R -VALUE <br />BASEMENT <br />WALL <br />R -VALUE <br />SLAB <br />R -VALUE <br />& DEPTH <br />CRAWL <br />SPACE <br />WALL <br />R -VALUE <br />1 <br />NR <br />0.75 <br />0.25 <br />30 <br />13 <br />3/4 <br />0 <br />0 <br />0 <br />0 <br />For SI: 1 foot = 304.8 mm <br />a. R -values are minimums. U -factors and SHGC are maximums. When insulation is installed <br />in a cavity which is less than the label or design thickness of the insulation, the installed R - <br />value of the insulation shall not be less than the R -value specified in the table. <br />b. The fenestration U -factor column excludes skylights. The SHGC column applies to all <br />glazed fenestration. Exception: Skylights may be excluded from glazed fenestration SHGC <br />requirements in climate zones 1 through 3 where the SHGC for such skylights does not <br />exceed 0.30. <br />c. Exception: If fenestration have overhangs with projection factors, the maximum solar heat <br />gain coefficient shall be as specified in Table 11401.2.1. <br />d. 11402.1.2 and 11402.2 allow use of 11407. <br />e. The second R -value applies when more than half the insulation is on the interior of the <br />mass wall. <br />f. Exception: R -value for mass walls are not required if: mass walls have a covering with <br />reflectance of ? 0.64; mass walls have overhangs with a projection factor equal to or greater <br />than 0.3. CMU or similar mass walls are 6 inches or greater in thickness. <br />g. Exception: Jalousie windows are exempt from SHGC requirements." <br />(33) Subsection R402.1.2 of the International Energy Conservation Code is <br />amended to read as follows: <br />"R402.1.2 Insulation and fenestration criteria (Prescriptive). <br />The building thermal envelope shall meet the requirements <br />of Table R402.1.2, <br />Exception: Insulation values of above -grade walls and ceilings <br />shall be permitted to comply with Section R407." <br />(34) Subsection R402.2 of the International Energy Conservation Code is <br />amended to read as follows: <br />"R402.2 Specific insulation requirements (Prescriptive). <br />In addition to the requirements of Section R402.1, insulation <br />shall meet the specific requirements of Sections R402.2.1 <br />through R402.2.13. <br />Exception: Above -grade walls and ceilings shall be permitted <br />to comply with Section R407." <br />SUPP. 8 (7-2020) 5-124 <br />