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J. Unless otherwise detailed, plywood used as blocking or shim shall be installed below <br />dimensional lumber such that the fastener head terminates at the dimensional lumber <br />surface. <br />K. Wood nailers at roof perimeters, expansion joints, roof area dividers, etc. shall not be less <br />than 3 feet long. <br />L. When multiple nailers are installed stacked two high or more, offset nailers no less than <br />12" such that joints at nailer end do not line-up vertically. <br />M. Each end of nailers shall be fastened with additional fasteners to ensure a smooth transition <br />at butted joints, and to prevent warping and/or twisting. <br />N. Shims: <br />1. The Contractor shall add plywood and lumber shims as required for the specified <br />height and thickness. <br />2. Shims shall make full contact with stacked rough carpentry. Partial shim contact, <br />and small shim pieces spaced apart are not acceptable. <br />3. Plywood used as blocking or shim shall be installed below dimensional lumber <br />such that the fastener head terminates at the dimensional lumber surface. <br />O. Curbs: <br />1. Adjust wood curbs to support rooftop piping, ducts, equipment, etc. <br />2. Raise equipment to provide required flashing height for roofmg. <br />3.04 CLEAN-UP <br />A. The Contractor shall ensure the site and building are cleaned to meet pre -construction <br />conditions, as accepted by the Owner. <br />B. The site and building shall be free of saw dust from pressure treated lumber, fasteners and <br />other debris. <br />C. Damages to the building, grounds, equipment and site shall be repaired or replaced by the <br />Contractor to meet pre -construction conditions, as accepted by the Owner. <br />END OF SECTION 06 10 00 <br />Indian River County West WWTP <br />Roof Replacement 06 1000-8 Rough Carpentry <br />