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DSS Skills Development Center Smith Sinnett / 2020045 <br />Chapel Hill, North Carolina Orange County <br /> <br />CUTTING AND PATCHING 01 73 29 - 4 <br />B. Cutting: Cut in-place construction by sawing, drilling, breaking, chipping, grinding, and similar <br />operations, including excavation, using methods least likely to damage elements retained or adjoining <br />construction. If possible, review proposed procedures with original Installer; comply with original <br />Installer's written recommendations. <br />1. In general, use hand or small power tools designed for sawing and grinding, not hammering and <br />chopping. Cut holes and slots as small as possible, neatly to size required, and with minimum <br />disturbance of adjacent surfaces. Temporarily cover openings when not in use. <br />2. Finished Surfaces: Cut or drill from the exposed or finished side into concealed surfaces. <br />3. Concrete or Masonry: Cut using a cutting machine, such as an abrasive saw or a diamond-core <br />drill. <br />4. Excavating and Backfilling: Comply with requirements in applicable Division 31 Sections where <br />required by cutting and patching operations. <br />5. Mechanical and Electrical Services: Cut off pipe or conduit in walls or partitions to be removed. <br />Cap, valve, or plug and seal remaining portion of pipe or conduit to prevent entrance of moisture <br />or other foreign matter after cutting. <br />6. Proceed with patching after construction operations requiring cutting are complete. <br />C. Patching: Patch construction by filling, repairing, refinishing, closing up, and similar operations <br />following performance of other Work. Patch with durable seams that are as invisible as possible. <br />Provide materials and comply with installation requirements specified in other Sections. <br />1. Inspection: Where feasible, test and inspect patched areas after completion to demonstrate <br />integrity of installation. <br />2. Exposed Finishes: Restore exposed finishes of patched areas and extend finish restoration into <br />retained adjoining construction in a manner that will eliminate evidence of patching and <br />refinishing. <br />a. Clean piping, conduit, and similar features before applying paint or other finishing <br />materials. <br />b. Restore damaged pipe covering to its original condition. <br />3. Floors and Walls: Where walls or partitions that are removed extend one finished area into <br />another, patch and repair floor and wall surfaces in the new space. Provide an even surface of <br />uniform finish, color, texture, and appearance. Remove in-place floor and wall coverings and <br />replace with new materials, if necessary, to achieve uniform color and appearance. <br />a. Where patching occurs in a painted surface, apply primer and intermediate paint coats over <br />the patch and apply final paint coat over entire unbroken surface containing the patch. <br />Provide additional coats until patch blends with adjacent surfaces. <br />4. Ceilings: Patch, repair, or rehang in-place ceilings as necessary to provide an even-plane surface <br />of uniform appearance. <br />5. Exterior Building Enclosure: Patch components in a manner that restores enclosure to a <br />weathertight condition. <br />D. Cleaning: Clean areas and spaces where cutting and patching are performed. Completely remove paint, <br />mortar, oils, putty, and similar materials. Thoroughly clean piping, conduit, and similar features before <br />applying paint or other finishing materials. Restore damaged pipe covering to its original condition. <br />END OF SECTION 01 73 29 <br />DocuSign Envelope ID: ECCAC5A0-6CC8-4B37-8AD3-89D69F0AE1AE