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Orange County Architectural Renovations Smith Sinnett / 2023036 <br />Hillsborough, NC Orange County Asset Management Services <br />INTERIOR FINISH CARPENTRY 06 20 23 - 3 <br />C. Do not use material that is warped or does not comply with requirements for untreated material. <br />D. Mark lumber with treatment quality mark of an inspection agency approved by ALSC’s Board of Review. <br />1. For exposed lumber indicated to receive a stained or natural finish, mark end or back of each <br />piece or omit marking and provide certificates of treatment compliance issued by inspection <br />agency. <br />2.3 CUSTOM STAIR TREAD AND RISERS <br />A. Hardwood Lumber for Transparent Finish (Stain or Clear Finish): <br />1. Species and Grade: White maple; Clear; NHLA. <br />2. Maximum Moisture Content: 7 percent or less. <br />3. Jointing: Tongue and Grove <br />4. Face Surface: Surfaced (smooth). <br />5. Matching: Selected for compatible grain and color. <br />B. Treads: 1-1/16-inch, clear, kiln-dried, edge-glued, hard maple stepping with half-round nosing. <br />C. Risers: 13/16-inch, clear, kiln-dried, edge-glued hard maple stock. <br />D. All lumber shall be back primed. <br />2.4 MISCELLANEOUS MATERIALS <br />A. Fasteners for Interior Finish Carpentry: Nails, screws, and other anchoring devices of type, size, material, <br />and finish required for application indicated to provide secure attachment, concealed where possible. <br />1. Where galvanized finish is indicated, provide fasteners and anchorages with hot-dip galvanized <br />coating complying with ASTM A 153/A 153M. <br />B. Glue: Aliphatic-resin, polyurethane, or resorcinol wood glue recommended by manufacturer for general <br />carpentry use. <br />1. Use wood glue that has a VOC content of 30 g/L or less when calculated according to 40 CFR 59, <br />Subpart D (EPA Method 24). <br />2.5 FABRICATION <br />A. Ease edges of lumber less than 1 inch in nominal thickness to 1/16-inch radius and edges of lumber 1 inch <br />or more in nominal thickness to 1/8-inch radius. <br />PART 3 - EXECUTION <br />3.1 EXAMINATION <br />A. Examine substrates, with Installer present, for compliance with requirements for installation tolerances <br />and other conditions affecting performance. <br />B. Examine finish carpentry materials before installation. Reject materials that are wet, moisture damaged, <br />and mold damaged. <br />C. Proceed with installation only after unsatisfactory conditions have been corrected. <br />3.2 PREPARATION <br />A. Clean substrates of projections and substances detrimental to application. <br />B. Before installing interior finish carpentry, condition materials to average prevailing humidity in <br />installation areas for a minimum of 24 hours. <br />Docusign Envelope ID: 52FACC74-DA96-491B-B0B8-04AC3961737D