Loading...
HomeMy WebLinkAbout01-7329-Cutting-And-Patching_Rev_1Dennis Yarmouth Intermediate Middle School January 19, 2021 Dennis Yarmouth Regional School District 100% Construction Documents Perkins Eastman DPC, project #71011 CUTTING AND PATCHING 01 7329 - 1 SECTION 01 7329 CUTTING AND PATCHING PART 1 - GENERAL 1.1 RELATED DOCUMENTS A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and other Division 01 Specification Sections, apply to this Section. 1.2 SUMMARY A. Section includes general administrative and procedural requirements governing cutting and patching. B. Related Requirements: 1. Section 01 7300 “Execution" for general administrative and procedural requirements governing execution of the Work. 2. Section 01 7333 “Remedial Work to Correct Errors” for remedial work to correct errors includes cutting and patching associated with construction errors including defective, non-conforming, ill-timed, and improperly fitting work. 3. Division 02 thru 33 Sections for materials and installation requirements for patching. 1.3 DEFINITIONS A. Cutting: Removal of in-place construction necessary to permit installation or performance of other work. Cutting includes undercutting. B. Patching: Fitting and repair work required to restore construction to original conditions after installation of other work. C. Coring: A new penetration cut through existing or new construction using a coring drill, and measuring not more than 6 inches in diameter, or measuring not more than 6 by 6 inches square. Larger openings will be considered under-cutting. D. Undercutting: Cutting away material from existing or new construction so as to leave a portion overhanging. 1.4 INFORMATIONAL SUBMITTALS A. Make Submittals in accordance with Section 01 3300 “Submittal Procedures.” B. Cutting and Patching Plan: Submit plan describing procedures at least 10 days prior to the time cutting and patching will be performed. Include the following information: 1. Extent: Describe reason for and extent of each occurrence of cutting and patching. 2. Changes to In-Place Construction: Describe anticipated results. Include changes to structural elements and operating components as well as changes in building appearance and other significant visual elements. Dennis Yarmouth Intermediate Middle School January 19, 2021 Dennis Yarmouth Regional School District 100% Construction Documents Perkins Eastman DPC, project #71011 CUTTING AND PATCHING 01 7329 - 2 3. Products: List products to be used for patching and firms or entities that will perform patching work. 4. Dates: Indicate when cutting and patching will be performed. 5. Utilities and Mechanical and Electrical Systems: List services and systems that cutting and patching procedures will disturb or affect. List services and systems that will be relocated and those that will be temporarily out of service. Indicate length of time permanent services and systems will be disrupted. a. Include description of provisions for temporary services and systems during interruption of permanent services and systems. 1.5 INVESTIGATIVE SURVEYS A. Subsurface Utilities: General Contractor shall perform investigative surveys to determine the exact location of underground utilities, including utilities below slabs-on-grade, by use of ground penetrating radar (GPR), or other methods approved by Architect. B. Re-Bars and Coring: Before coring, General Contractor shall perform investigative surveys to determine exact locations of reinforcing bars in concrete. Do not cut reinforcing bars in concrete without prior written approval of Architect’s structural engineer. 1.6 QUALITY ASSURANCE A. Cutting and Patching: Comply with requirements for and limitations on cutting and patching of construction elements. 1. Structural Elements: When cutting and patching structural elements, notify Architect of locations and details of cutting and await directions from Architect before proceeding. Shore, brace, and support structural elements during cutting and patching. Do not cut and patch structural elements in a manner that could change their load-carrying capacity or increase deflection a. Restrictions for Cutting Structural Members: Do not cut structural members including steel reinforcing, unless the cutting is clearly shown and detailed on the Structural Contract Drawings. b. Proposed Structural Cutting Not Shown On Structural Contract Drawings: Prior to cutting structural members not shown on Structural Contract Drawings, obtain Owner's and Project Structural Engineer of Record's approval of proposed cutting of structural members. 1) Provide specially prepared drawings for each specific structural cutting operation proposed. 2) Show all structural members proposed to be cut including, without limitation, load bearing walls, structural framing of all types, structural slabs and decks, concrete, structural masonry, and rebar. 3) Provide temporary shoring and bracing as specified below. 2. Operational Elements: Do not cut and patch operating elements and related components in a manner that results in reducing their capacity to perform as intended or that results in increased maintenance or decreased operational life or safety. Operational elements include but are not limited to the following: a. Primary operational systems and equipment. b. Fire separation assemblies. c. Air or smoke barriers. d. Fire-suppression systems. e. Mechanical systems piping and ducts. f. Control systems. Dennis Yarmouth Intermediate Middle School January 19, 2021 Dennis Yarmouth Regional School District 100% Construction Documents Perkins Eastman DPC, project #71011 CUTTING AND PATCHING 01 7329 - 3 g. Communication systems. h. Fire-detection and -alarm systems. i. Conveying systems. j. Electrical wiring systems. k. Operating systems of special construction. 3. Other Construction Elements: Do not cut and patch other construction elements or components in a manner that could change their load-carrying capacity, that results in reducing their capacity to perform as intended, or that results in increased maintenance or decreased operational life or safety. Other construction elements include but are not limited to the following: a. Water, moisture, or vapor barriers. b. Membranes and flashings. c. Exterior curtain-wall construction. d. Sprayed fire-resistive material. e. Equipment supports. f. Piping, ductwork, vessels, and equipment. g. Noise- and vibration-control elements and systems. 4. Visual Elements: Do not cut and patch construction in a manner that results in visual evidence of cutting and patching. Do not cut and patch exposed construction in a manner that would, in Architect's opinion, reduce the building's aesthetic qualities. Remove and replace construction that has been cut and patched in a visually unsatisfactory manner. B. Cutting Techniques: 1. Preform cutting by sawing, drilling or coring. 2. Cutting by chipping, hammering or breaking is prohibited and will not be allowed. C. Cutting and Patching Conference: Before proceeding, meet at Project site with parties involved in cutting and patching, including mechanical and electrical trades. Review areas of potential interference and conflict. Coordinate procedures and resolve potential conflicts before proceeding. 1.7 COORDINATION A. General Contractor shall be responsible for the following: 1. Obtain locations and dimensions of required penetrations through walls and floors from trades requiring penetrations. 2. Coordinate those penetrations with the requirements of other trades. 3. Forward locations and dimensions of requested penetrations to the trades responsible for performing the cutting and patching work. B. General Contractor shall perform cutting and patching work except where cutting and patching work is indicated to be performed by a Filed Sub-Bid subcontractor. C. Coring of openings up to and including 6 inches shall be performed by the trade requiring the new penetration. Coring of openings larger than 6 inches shall be performed by General Contractor. 1. Investigative survey for re-bar locations shall be performed by General Contractor. Dennis Yarmouth Intermediate Middle School January 19, 2021 Dennis Yarmouth Regional School District 100% Construction Documents Perkins Eastman DPC, project #71011 CUTTING AND PATCHING 01 7329 - 4 1.8 WARRANTY A. Warranties: Cut and patch systems, materials, and surfaces with materials and methods so as not to void existing or new warranties. PART 2 - PRODUCTS 2.1 MATERIALS A. For patching materials and installation procedures, comply with requirements specified in other Sections. B. In-Place Materials: Use materials for patching identical to in-place materials. For exposed surfaces, use materials that visually match in-place adjacent surfaces to the fullest extent possible. 1. If identical materials are unavailable or cannot be used, use materials that, when installed, will provide a match acceptable to Architect for the visual and functional performance of in-place materials. PART 3 - EXECUTION 3.1 EXAMINATION A. Examine materials and surfaces to be cut and patched and conditions under which cutting and patching are to be performed. 1. Before cutting and patching, verify compatibility and suitability of substrates, including compatibility with in-place finishes and primers. 3.2 PREPARATION A. Provide temporary support of Work to be cut and patched. B. Protect in-place construction during cutting and patching to prevent damage. Provide protection from weather for portions of Project that might be exposed during cutting and patching operations. Refer to Section 015000 “Temporary Facilities and Controls” for additional protection requirements. C. Avoid interference with the use of adjacent areas or interruption of passage to adjacent areas. 3.3 CUTTING AND PATCHING, GENERAL A. Employ skilled workers to perform cutting and patching. Proceed with cutting and patching at the earliest feasible time, and complete without delay. 1. Cut in-place construction to provide for installation of other components or performance of other construction, and subsequently patch as required to restore surfaces to their original condition. B. Existing Warranties: Remove, replace, patch, and repair materials and surfaces cut or damaged during installation or cutting and patching operations, by methods and with materials so as not to void existing warranties. Dennis Yarmouth Intermediate Middle School January 19, 2021 Dennis Yarmouth Regional School District 100% Construction Documents Perkins Eastman DPC, project #71011 CUTTING AND PATCHING 01 7329 - 5 C. Temporary Support: Provide temporary support of work to be cut, including undercutting. 1. Temporary Shoring and Bracing: Design, engineer, and provide all temporary shoring and bracing needed to ensure safety of people and property. a. Provide specially prepared shop drawings for each specific shoring and bracing scheme proposed. b. Show loads, reactions, anchorage, and connections. D. Protection: Protect in-place construction during cutting and patching to prevent damage. Provide protection from adverse weather conditions for portions of Project that might be exposed during cutting and patching operations. E. General Requirements for Concealed Elements: 1. Thoroughly investigate and understand visually concealed conditions prior to cutting. 2. Use electronic metal sensors and density change sensors to locate concealed items. 3. Do not unintentionally cut concealed structural members including steel reinforcing. 4. Do not unintentionally cut utilities. F. General Requirements for Cutting: 1. Make submittal and obtain written approval prior to all cutting. 2. Accurately layout and mark openings in plan and elevation prior to cutting. 3. Investigate and confirm concealed conditions and concealed elements. 4. Provide uniform, precise, circular, rectangular, or square openings. 5. Make openings the minimum size necessary to accommodate the work. 6. Size openings to accommodate fire stopping, sealants, and similar related work. 7. At locations visible in the completed work, ensure cut edges will be covered by trim rings. 8. Protect adjacent surfaces from cutting related damage including dust, water, and vibration. G. Cutting: Cut in-place construction by sawing, drilling, breaking, chipping, grinding, and similar operations, including excavation, using methods least likely to damage elements retained or adjoining construction. If possible, review proposed procedures with original Installer; comply with original Installer's written recommendations. 1. In general, use hand or small power tools designed for sawing and grinding, not hammering and chopping. Cut holes and slots neatly to minimum size required, and with minimum disturbance of adjacent surfaces. Temporarily cover openings when not in use. 2. Finished Surfaces: Cut or drill from the exposed or finished side into concealed surfaces. 3. Concrete and Masonry: Cut using a cutting machine, such as an abrasive saw or a diamond-core drill. 4. Excavating and Backfilling: Comply with requirements in applicable Sections where required by cutting and patching operations. 5. Mechanical and Electrical Services: Cut off pipe or conduit in walls or partitions to be removed. Cap, valve, or plug and seal remaining portion of pipe or conduit to prevent entrance of moisture or other foreign matter after cutting. 6. Proceed with patching after construction operations requiring cutting are complete. H. Patching: Patch construction by filling, repairing, refinishing, closing up, and similar operations following performance of other work. Patch with durable seams that are as invisible as practicable. Provide materials and comply with installation requirements specified in other Sections, where applicable. 1. Inspection: Where feasible, test and inspect patched areas after completion to demonstrate physical integrity of installation. 2. Perform patching so as to maintain the fire rating and acoustical rating, if any, of the construction being patched. Dennis Yarmouth Intermediate Middle School January 19, 2021 Dennis Yarmouth Regional School District 100% Construction Documents Perkins Eastman DPC, project #71011 CUTTING AND PATCHING 01 7329 - 6 3. Exposed Finishes: Restore exposed finishes of patched areas and extend finish restoration into retained adjoining construction in a manner that will minimize evidence of patching and refinishing. a. Clean piping, conduit, and similar features before applying paint or other finishing materials. b. Restore damaged pipe covering to its original condition. 4. Floors and Walls: Where walls or partitions that are removed extend one finished area into another, patch and repair floor and wall surfaces in the new space. Provide an even surface of uniform finish, color, texture, and appearance. Remove in-place floor and wall coverings and replace with new materials, if necessary, to achieve uniform color and appearance. a. Where patching occurs in a painted surface, prepare substrate and apply primer and intermediate paint coats appropriate for substrate over the patch, and apply final paint coat over entire unbroken surface containing the patch. Provide additional coats until patch blends with adjacent surfaces. 5. Ceilings: Patch, repair, or rehang in-place ceilings as necessary to provide an even- plane surface of uniform appearance. 6. Exterior Building Enclosure: Patch components in a manner that restores enclosure to a weathertight condition and ensures thermal and moisture integrity of building enclosure. 3.4 CUTTING AND PATCHING BY FILED SUB-BID SUBCONTRACTORS A. Masonry: Cutting and patching of masonry shall be performed by the Masonry Filed Sub-Bid subcontractor. B. Waterproofing, Dampproofing and Caulking: Cutting and patching of waterproofing, dampproofing, and caulking shall be performed by the Waterproofing, Dampproofing, and Caulking Filed Sub-Bid subcontractor. C. Roofing And Flashing: Cutting and patching of roofing and flashing shall be performed by the Roofing And Flashing Filed Sub-Bid subcontractor. D. Metal Fabrications: Cutting and patching of metal fabrications, including metal stair, pipe and tube railings, metal gratings, and decorative metal railings, shall be performed by the Miscellaneous And Ornamental Iron Filed Sub-Bid subcontractor. E. Tile: Cutting and patching of tile shall be performed by the Tile Filed Sub-Bid subcontractor. F. Painting: Painting of patched surfaces shall be performed by the Painting Filed Sub-Bid subcontractor. G. Plumbing: Cutting and patching of Plumbing work shall be performed by the Plumbing Filed Sub-Bid subcontractor. H. HVAC: Cutting and patching of HVAC work shall be performed by the Heating, Ventilating, and Air-Conditioning Filed Sub-Bid subcontractor. I. Electrical: Cutting and patching of electrical work shall be performed by the Electrical Filed Sub-Bid subcontractor. Dennis Yarmouth Intermediate Middle School January 19, 2021 Dennis Yarmouth Regional School District 100% Construction Documents Perkins Eastman DPC, project #71011 CUTTING AND PATCHING 01 7329 - 7 3.5 CLEANING A. Dispose of waste materials in accordance with Section 01 7419 “Construction Waste Management And Disposal.” B. Cleaning: Clean areas and spaces where cutting and patching are performed. Remove paint, mortar, oils, putty, and similar materials from adjacent finished surfaces. END OF SECTION (THIS PAGE IS BLANK)