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Project No. 21-1011 November 2024 017320 -6 <br />2. Neatly cut openings and holes plumb, square, and true to dimensions required. <br />Use cutting methods least likely to damage construction to remain or adjoining <br />construction. Use hand tools or small power tools designed for sawing or grinding, <br />not hammering and chopping, to minimize disturbance of adjacent surfaces. <br />Temporarily cover openings to remain. <br /> <br />3. Cut or drill from the exposed or finished side into concealed surfaces to avoid <br />marring existing finished surfaces. <br /> <br />4. Do not use cutting torches until work area is cleared of flammable materials. At <br />concealed spaces, such as duct and pipe interiors, verify condition and contents of <br />hidden space before starting flame-cutting operations. Maintain portable fire- <br />suppression devices during flame-cutting operations. <br /> <br />5. Maintain adequate ventilation when using cutting torches. <br /> <br />6. Remove decayed, vermin-infested, or otherwise dangerous or unsuitable materials <br />and promptly dispose of off-site. <br /> <br />7. Remove structural framing members and lower to ground by method suitable to <br />avoid free fall and to prevent ground impact or dust generation. <br /> <br />8. Locate selective demolition equipment and remove debris and materials so as not <br />to impose excessive loads on supporting walls, floors, or framing. <br /> <br />9. Dispose of demolished items and materials promptly. Comply with recycling <br />requirements in Section 01524 "Construction Waste Management." <br />B. Removed and Reinstalled Items: <br /> <br />1. Clean and repair items to functional condition adequate for intended reuse. <br /> <br />2. Pack or crate items after cleaning and repairing. Identify contents of containers. <br /> <br />3. Protect items from damage during transport and storage. <br /> <br />4. Reinstall items in locations indicated. Comply with installation requirements for <br />new materials and equipment. Provide connections, supports, and miscellaneous <br />materials necessary to make item functional for use indicated. <br />C. Existing Items to Remain: Protect construction indicated to remain against damage and <br />soiling during selective demolition. When permitted by Architect, items may be removed <br />to a suitable, protected storage location during selective demolition and cleaned and <br />reinstalled in their original locations after selective demolition operations are complete. <br /> <br />3.5 SELECTIVE DEMOLITION PROCEDURES FOR SPECIFIC MATERIALS <br />A. Concrete: Demolish in small sections. Using power-driven saw, cut concrete to a depth <br />of at least 3/4 inch (19 mm) at junctures with construction to remain. Dislodge concrete <br />from reinforcement at perimeter of areas being demolished, cut reinforcement, and then <br />remove remainder of concrete. Neatly trim openings to dimensions indicated.