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IRC-1838 Indian River County <br />Main Library <br />Roof Replacement 06 10 00-5 Rough Carpentry <br />3.1 EXAMINATION <br />A. Contractor shall inspect substrates to receive rough carpentry, and ensure substrates are <br />in satisfactory condition prior to installation of rough carpentry. <br />B. Contractor shall inspect all new and existing rough carpentry including fasteners for <br />material condition before proceeding with installation. Deteriorated, rotted, damaged, split, <br />warped, twisted or wet materials shall be removed and replaced with specified materials. <br />Refer to Section 01 22 00-Unit Prices. <br />C. Contractor shall remove old cants, tapered edge strips, debris, old fasteners, etc. that <br />interfere with the installation of new rough carpentry. <br />D. Contractor shall notify Engineer in writing of unsatisfactory conditions. <br />E. Commencement of work signifies Contractor’s acceptance of substrates. Any defects in <br />roofing work resulting from such accepted substrates shall be corrected at no additional <br />expense to the Owner. <br />3.2 PREPARATION <br />A. Steel/Metal Substrates: <br />1. Any pressure treated wood to contact steel or metal shall have the steel/metal <br />coated with a heavy coating of asphalt primer. <br />B. Roof Deck and Structure: <br />1. Roof deck and structure shall be dried and broomed and/or vacuumed clean of <br />debris and foreign matter prior to installation of the new rough carpentry. <br />2. Contractor shall adjust substrates to receive rough carpentry to ensure completed <br />rough carpentry installation is acceptable for roofing and sheet metal flashings. <br />3. Steel decking shall be coated with a uniform, heavy application of asphalt primer, <br />or separated by membrane or other acceptable means to prevent contact between <br />steel and treated wood products. <br />4. Treated lumber shall not make direct contact with light gage steel decking. <br />C. Masonry Walls: <br />1. Adhesive anchors: <br />a. Contractor shall follow adhesive anchor manufacturer’s published <br />instructions for preparation and installation. <br />b. Pre-drill hole or clean-out existing gap/hole for adhesive anchors. <br />c. Use compressed air to blow-out all dust and moisture. Dust and moisture <br />will result in failure of anchors and shall be removed before installing <br />adhesive anchors. <br />3.3 INSTALLATION <br />A. Remove existing damaged or deteriorated wood blocking, nailers, and curbs and replace <br />with new material of same dimensions. <br />B. Re-secure all existing wood nailers at roof edges that are to remain. Fastener type and <br />spacing shall comply with this specification. <br />C. Install new wood blocking, nailers, and curbs to achieve a minimum eight inch flashing <br />height above the roof membrane. Wood nailers at perimeter roof edges and expansion