GSA 01 73 10 CUTTING PATCHING.docx

Eagle Pass I & II Land Port of Entry BRIC Eagle Pass, Texas Kahua #352 Santa Teresa Land Port of Entry BRIC Santa Teresa, New Mexico Kahua #353

SECTION 01 73 10 - CUTTING AND PATCHING DB V

PART 1 GENERAL

1.1 SUMMARY

A. This section includes procedural requirements for cutting and patching in existing work.

B. Definition: Cutting and patching includes cutting into existing construction to provide for the installation or performance of other work and subsequent fitting and repair required to restore surfaces to their original condition. Drilling holes for fasteners and similar operations are not "cutting and patching".

C. Refer to other sections for other requirements and limitations applicable to cutting and patching individual parts of the Work.

1.2 Coordinate cutting and patching with demolition requirements as specified in Division 1 Section "Selective Demolitions"

1.3 SUBMITTALS

A. Cutting and Patching Plan: The Contractor shall submit a plan to GSA for review and approval that describes the cutting and patching procedures. The plan shall be submitted 7 days prior to the pre construction Meeting. The plan shall be approved by GSA prior to the issuance of the Notice to Proceed.

1. Include the following information, as applicable:

a. Description of the extent of cutting and patching required. Show how it will be performed and indicate why it cannot be avoided.

b. Description of the anticipated results in terms of changes to existing construction. Include changes to structural elements and operating components as well as changes in appearance and other significant visual elements.

c. List of products to be used and entities that will perform work.

d. Dates and hours of operation when cutting and patching will be performed.

e. List utilities that will be disturbed or otherwise be affected by work, including those that will be relocated and those that will be out-of-service temporarily. Indicate how long utility service will be disrupted.

f. Compatibility and cohesion characteristics of patching compounds with adjacent materials.

g. Details and engineering calculations showing integration of reinforcement with the original structure, where cutting and patching involve adding reinforcement to structural elements.

h. Temporary protection of existing structures, surfaces, finishes, equipment, etc. to remain in place during construction.

B. Approval by GSA to proceed with cutting and patching does not waive the right to later require complete removal and replacement of unsatisfactory work.

1.4 QUALITY CONTROL

A. Requirements for Structural Work: Do not cut and patch structural elements in a manner that would change their load-carrying capacity or load-deflection ratio.

1. The cutting and patching plan shall include but not necessarily be limited to work required at the following structural elements:

a. Foundation construction.

b. Bearing and retaining walls.

c. Structural concrete.

d. Equipment supports.

e. Structural systems of other construction.

B. Operational Limitations: Do not cut and patch operating elements, safety related systems, or related components in a manner that would result in reducing their capacity to perform as intended, or that would result in increased maintenance or decreased operational life or safety.

1. The cutting and patching plan shall include but not be limited to work required on the following operating elements or safety related systems:

a. Primary operational systems and equipment.

b. Water, moisture, or vapor barriers.

c. Membranes and flashings.

d. Communication systems.

e. Operating systems of other construction.

f. Intrusion detection systems.

g. Automated access control systems.

h. Internet, data and telephone lines.

C. Visual Requirements: Do not cut and patch construction exposed on the exterior or in occupied spaces in a manner that would, in GSA's opinion, reduce the building's aesthetic qualities. Do not cut and patch construction in a manner that would result in visual evidence of cutting and patching. Remove and replace construction that is cut and patched in a visually unsatisfactorily manner.

1. Retain the original installer or fabricator to cut and patch exposed work if the original installer or fabricator is identified in the Contract Documents or is known to the Contractor and is available for the work.

2. If it is not possible to engage the original installer or fabricator, engage a Specialist who is specifically experienced in the work.

3. The cutting and patching plan shall include but not be limited to work required at the following visual elements:

a. Processed concrete finishes.

b. Stonework and stone masonry.

1.5 EXISTING WARRANTIES

A. Replace, patch, and repair material and surfaces cut or damaged by methods and with materials in such a manner as not to void any existing warranties.

PART 2 PRODUCTS

2.1 MATERIALS

A. Use materials identical to existing materials to the maximum extent available.

B. For exposed surfaces, use materials that visually match existing adjacent surfaces to the fullest extent possible.

C. Use materials whose installed performance will equal or surpass that of existing materials.

D. Materials and/or products used in historic buildings must be approved by GSA Historic Preservation Staff.

PART 3 EXECUTION

3.1 INSPECTION

A. Before cutting, examine surfaces to be cut and patched and conditions under which cutting and patching is to be performed. If unsafe or unsatisfactory conditions are encountered, take corrective action before proceeding.

B. Before proceeding with cutting and patching involving two or more trades, meet at the Project site with the entities providing or affected by the cutting and patching. Review areas of potential interference and conflict. Coordinate procedures and resolve potential conflicts before proceeding.

3.2 PREPARATION

A. Provide temporary support for work to be cut.

B. Protect existing conditions during cutting and patching to prevent damage. Provide protection from adverse weather conditions for portions of the Project that might be exposed during cutting and patching operations.

C. Avoid interference with use of adjoining areas or interruption of free passage to adjoining areas.

3.3 PERFORMANCE

A. Employ skilled workmen to perform cutting and patching. Proceed with cutting and patching at the earliest possible time and complete without delay. Any adverse noise or odor producing work must be performed in accordance with GSA FY23 01 14 00 WORK RESTRICTIONS.

B. Cutting: Cut existing construction using methods least likely to damage elements retained and adjoining construction. Where possible, review proposed procedures with the original installer and comply with the original installer's recommendations.

1. In general, use hand or small power tools designed for sawing or grinding, not for hammering and chopping.

2. Cut holes and slots as small as possible, neatly to size required, and with minimum disturbance of adjacent surfaces. Temporarily cover openings when not in use.

3. To avoid marring existing finished surfaces, cut or drill from the exposed or finished side into concealed surfaces.

4. Cut through concrete and masonry using silicon carbide or harder tipped tools. Follow OSHA standard for respirable crystalline silica that is generated by construction activities. Include any and all requirements in Section 015950 Safety and Health.

5. Comply with requirements of applicable specification sections where cutting and patching requires excavating and backfilling.

6. After utility services are bypassed, cut-off pipe or conduit in walls or partitions to be removed. Cap, valve or plug and seal the remaining portion of pipe or conduit to prevent entrance of moisture or other foreign matter after by-passing and cutting.

C. Patching: Patch with durable seams that are as invisible as possible. Comply with specified tolerances.

1. Inspect and test patched areas to demonstrate integrity of the installation.

2. Restore exposed finishes of patched areas and extend finish restoration into adjoining construction in a manner that will eliminate evidence of patching and refinishing.

D. Perform cutting and patching work if listed in Division 1 Section "Work Restrictions" E. To be performed during Government Unoccupied Hours.

3.4 CLEANING

A. Clean areas and spaces where cutting and patching are performed. Completely remove all evidence of the Work.

END OF SECTION 01 73 10

June 17, 2025 CUTTING & PATCHING 01 73 10 - Page 2 of 2