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<br />01-05-09 <br /> <br />ICC Code Interpretation (Mike): <br /> <br />IRC Sect. R905.2.5 Fasteners. <br />Section identifies the kind of nails to be used for asphalt shingle installation. <br /> <br />IRC Sect R905.2.6 Attachment. <br />Section states asphalt shingles shall have the minimum number of fasteners required by <br />the manufacturer. He believes that they talking about manufacturer recommendations <br />on the nailing pattern - but still talking about nails rather than staples - even though <br />manufacturers do allow use of staples. <br /> <br />IRC Sect. R1 04.11 Alternative materials. design and methods of construction and <br />equipment. <br />He stated an alternative material, design or method of construction shall be approved <br />where the building official finds that the proposed design is satisfactory and complies <br />with the intent of the provisions of this code and that the material, method or work <br />offered is, for the purposed intended, at least the equivalent of that prescribed in this <br />code. <br /> <br />Past practices have been to allow the manufacturer's installation <br />instructions as to "fasteners and nailing". Should the decision be <br />made to utilize only nails, a clarification policy can implement the <br />change immediately. <br />