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V.APPENDIX <br />1. IBC Commentary on “Depth of footings” <br />“Footings are required to extend below the ground surface a minimum of 12”. <br />This is considered a minimum depth to protect the footing from the <br />movement of the soil caused by freezing and thawing in mild climate areas.” <br />Where no frost exists and erected on solid rock this requirement is waived. <br />Other soiltypes must be examined for lateral sliding value, expansion, or <br />limited bearing capacity. <br /> <br />2. IBC 104.11 Alternative materials, design, and methods of construction and <br />equipment. <br />The provisions of this code are not intended to prevent the installation of any <br />material or to prohibit any design or method of construction not specifically <br />prescribed by this code, provided that any such alternative has been <br />approved. An alternative material, design or method of construction shall be <br />approved where the building official finds that the proposed design is <br />satisfactory and complies with the intent of the provisions of this code, and <br />that the material, method or work offered is, for the purpose intended, at <br />least the equivalent of that prescribed in this code in quality, strength, <br />effectiveness, fire resistance, durability and safety. <br />County of Hawai`i is an Equal Opportunity Provider and Employer. <br />