017000 Execution Requirements.pdf

Robert C Weaver Federal Building, Granite Façade Repairs, Phase 2 Washington, DC Project Number # VDC00213

FY15 Update Oct. 1, 2014 Execution Requirements 017000 - 1

SECTION 017000 - EXECUTION REQUIREMENTS

PART 1 - GENERAL

1.1 SUMMARY

A. This section includes certain general procedural requirements governing the Contractor's execution of the Work, including, but not limited to laying out the work, general installation of products, correction of defective work, and cleaning.

B. Substitutions: Changes in methods of construction required by the Contract Documents proposed by the Contractor after award of the Contract shall comply with the procedures and conditions specified for Substitutions in the Construction Contract Clauses and Division 1 Section 016000 "Product Requirements".

1.2 SUBMITTALS

A. Surveyor Qualification Statement: Submit for review a statement attesting to previous experience from the surveyor or professional engineer engaged to survey the existing construction and lay out the Work. Include list of completed projects, with project names and addresses, and names and addresses of architects and owners.

B. Certificates: Submit a certificate signed by the surveyor or professional engineer certifying that the location and elevation of improvements comply with requirements indicated.

C. Existing Condition Survey: Upload 1 (one) electronic copy to ePM and 1 (one) copy of the existing condition survey to GSA. Place survey in ePM.

D. Final Survey: Upload 1 (one) electronic copy to ePM and 1 (one) copy of the final survey to GSA.

Place survey in ePM.

E. Field Correction Requests: Immediately upon discovery of the need to deviate from requirements of the Contract Documents, submit a field correction request to GSA for review. Include a detailed description of the problem encountered, together with recommended changes and detailing the reasons for deviating from the Contract Documents.

F. Manufacturer's Field Services Submissions: Where product manufacturers are required by the individual sections of the Specifications to provide qualified personnel to observe conditions of project conditions, installation or workmanship, start up or adjustment of equipment, tests or other activities, and to initiate instructions when necessary, the following shall be submitted to GSA:

1. Qualifications: For approval, submit qualifications of observer at least 30 calendar days in advance of scheduled activities.

2. Report: For information, submit report of activities and findings within 15 calendar days after the successful execution of the specified work. Include logs and other documented data where applicable.

G. Landfill Receipts: Submit copy of receipts issued by a landfill facility, licensed to accept hazardous materials, for hazardous and other waste disposal. Also submit electronic copies through ePM of receipts for any items recycled or salvaged.

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1.3 QUALITY CONTROL

A. Surveyor Qualifications: Engage a surveyor or qualified professional engineer registered in the state where the Project is located, to perform required surveying services.

B. Workmanship Standards: Initiate and maintain procedures to ensure personnel performing the work are skilled and knowledgeable in the methods and craftsmanship needed to produce the required levels of workmanship. Remove and replace work that does not comply with workmanship specified and standards recognized in the construction industry for the applications indicated. Remove and replace work damaged or deteriorated by faulty workmanship or replacement of other work.

1. Manufacturer's Instructions: Where installations include manufactured products, comply with manufacturer's applicable installation instructions and recommendations to the extent that those instructions and recommendations are more explicit or stringent than requirements contained in the Contract Documents.

2. Specialists: Where the individual sections of the specifications require specialists to perform the work, comply with the requirements specified in the Construction Contract Clauses. The assignment of a specialist shall not relieve the Contractor from complying with applicable regulations, union jurisdictional settlements or similar conventions, and the final responsibility for fulfillment of the entire requirements remains with the Contractor.

3. Minimum Quality and Quantity: The quality level or quantity shown or specified shall be the minimum required for the work. Except as otherwise indicated, the actual work shall comply exactly with that minimum or may be superior to that minimum within limits acceptable to GSA. Specified numeric values are either minimums or maximums as indicated or as appropriate for the context of the requirements.

4. Availability of Tradespersons and Manufacturer's Field Services Representatives: At each progress or coordination meeting, review availability of tradespersons, qualified manufacturers’ representatives required in the specifications, and projected needs to accomplish work as scheduled. Require each entity employing personnel to report on events which might affect progress of work. Where possible, consider alternatives and take actions to avoid disputes and delays

PART 2 - PRODUCTS (Not Applicable)

PART 3 - EXECUTION

3.1 LAYING OUT THE WORK

A. Identification: Identify existing benchmarks, control points and property line corner stakes to provide this information on the design-build drawings.

B. Reference Points: Locate existing permanent benchmarks, control points and similar reference points before beginning Work. Preserve and protect permanent benchmarks and control points during construction operations.

1. Do not change or relocate existing benchmarks or control points without prior written approval of GSA. Report lost or destroyed permanent benchmarks or control points promptly. Report the need to relocate benchmarks or control points to GSA before proceeding.

2. Replace lost or destroyed permanent benchmarks and control points promptly. Base replacements on the original control points.

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C. Existing Condition Survey:

1. Survey the existing façade to establish the existing building lines of the façade vertically and horizontally, plumbness of the facade, and identify individual elements that have moved out of plane with the rest of the façade.

2. Make recommendation as to tolerances for plumbness and location of the overall façade for reinstallation and corrections for elements that have shifted.

3. After the façade is removed, survey the concrete substrate to establish its relation to the façade so that the structural supports can be coordinated to the cavity width for each façade element.

D. Before proceeding to lay out the Work, verify layout information shown on the Drawings, in relation to the property survey and existing benchmarks. If discrepancies are discovered notify GSA promptly.

E. Establish and maintain a minimum of two (2) permanent benchmarks on the site, referenced to data established by survey control points.

1. Record benchmark locations, with horizontal and vertical data, on Project Record Documents.

2. Where the actual location or elevation of layout points cannot be marked, provide temporary reference points sufficient to locate the Work.

3. Remove temporary reference points when no longer needed. Restore marked construction to its original condition.

F. Record Log: Maintain a log of layout control work. Record deviations from required lines and levels. Make the log available for reference by GSA.

G. Existing Utilities and Equipment: Before beginning site work, investigate and verify the existence and location of underground utilities and other construction.

1. Prior to construction, verify the location and invert elevation at points of connection of sanitary sewer, storm sewer, and water-service piping.

2. Furnish location data for work related to the Project which must be performed by public utilities serving the Project site.

H. Layout the Work using accepted surveying practices.

1. Establish benchmarks and markers to set lines and levels at each story of construction and elsewhere as needed to locate each element of the Project.

2. Establish dimensions within tolerances indicated.

3. Inform installers of lines and levels to which they must conform.

4. Check the location, level and plumb of every major element as the work progresses.

5. Notify GSA when deviations from required lines and levels exceed allowable tolerances.

6. Establish limits of use of Project site.

7. Close site surveys with an error of closure equal to or less than the standard established by authorities having jurisdiction.

I. Final Survey: Prepare a final survey showing the significant features of the Project. Include on the survey a certification, signed by the surveyor, that principal metes, bounds, lines, and levels of the Project are accurately positioned as shown on the survey.

3.2 EXAMINATION

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A. Examine applicable substrates and conditions under which the Work will be performed before starting construction operations.

B. If unsafe or otherwise unsatisfactory conditions are encountered take corrective action before proceeding. Provide GSA with a written report documenting the conditions with the corrective actions taken.

3.3 PREPARATION

A. Building Lines and Levels: Locate and lay out batter boards for façade corner lines and joint lines and levels.

B. Existing Utilities: Furnish information necessary to adjust, move, or relocate existing structures, utility poles, lines, services, or other appurtenances located in or affected by construction.

Coordinate with local authorities having jurisdiction.

C. Take field measurements as required to fit the Work properly. Recheck measurements before installing each product. Confirm dimensional requirements of the contract documents can be met.

D. Verify space requirements of items shown diagrammatically on Drawings.

3.4 INSTALLATION

A. Locate the Work and components of the Work accurately.

1. Make vertical work plumb and horizontal work level within tolerances established by the existing conditions survey and to meet historic requirements.

2. Where space is limited, install components to maximize space available for maintenance and to maximize ease of removal for replacement.

3. Conceal pipes, ducts, and wiring in finished areas unless construction documents have designated otherwise.

B. Install products at the time and under conditions that will produce satisfactory results.

1. Maintain temperature, humidity and other weather controls for best performance.

2. Isolate units of non-compatible work to prevent deterioration.

C. Comply with manufacturer's written instructions and recommendations for installing products in applications indicated.

D. Conduct construction operations so that no part of the Work is subjected to damaging operations, or loading in excess of that structurally designed for the occupancy.

E. Tools and Equipment: Do not use tools or equipment that produce harmful or unacceptable levels of noise.

F. Odors and Fumes: To the greatest extent practicable, do not use products that produce harmful or noticeable odors or fumes. If necessary to use such products, coordinate ventilation requirements to produce the ambient condition required for the work and to minimize energy consumption, and to protect personnel from fumes and other harmful effects.

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G. Anchors and Fasteners: Provide anchors and fasteners that will withstand stresses, vibration and physical distortion. Anchor each component securely in place, accurately located and aligned with other Work.

1. Mounting Heights: Where mounting heights are not indicated, mount components at heights directed by GSA.

2. Allow for building movement, including thermal expansion and contraction.

H. Joints: Make like joints of uniform width within contiguous surfaces. Where joint locations in exposed work are not indicated, arrange joints for a uniform and balanced visual effect.

I. Adjust operating components for proper operation

3.5 PROTECTION OF INSTALLED CONSTRUCTION

A. Provide final protection and maintain conditions that ensure installed Work is without damage or deterioration at time of Substantial Completion.

B. Comply with manufacturer's written instructions for temperature and relative humidity.

3.6 CORRECTION OF INSTALLED DEFECTIVE WORK

A. Repair or remove and replace defective construction. Restore damaged substrates and finishes.

B. Repairing includes replacing defective parts, refinishing damaged surfaces, touching up with matching materials, and proper adjustment of operating equipment.

C. Restore permanent facilities used during construction to their specified condition.

D. Remove and replace damaged surfaces that are exposed to view if the surfaces cannot be repaired without visible evidence of repair.

E. Repair components that do not operate properly. Remove and replace operating components that cannot be repaired to operate properly.

F. Remove and replace chipped, scratched or broken surfaces.

3.7 CLEANING

A. Maintain the project work areas free of waste material and debris. Comply with requirements in NFPA 241 for removal of combustible waste materials and debris.

B. Clean areas where work is in progress to the level of cleanliness necessary for proper execution of the work.

1. Remove liquid spills promptly.

2. Where dust would impair proper execution of the work, broom- or vacuum-clean the entire work area.

3. Separate containers of hazardous materials from other waste, and mark containers to identify. Legally dispose of all waste in timely fashion.

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C. Keep installed work clean. Clean installed surfaces in accordance with the recommendations of the manufacturer or fabricator of the product installed, using only the cleaning materials specifically recommended. If specific cleaning materials are not recommended, use cleaning materials that are not hazardous to health or property and will not damage exposed surfaces.

D. Remove debris from concealed spaces prior to enclosing.

E. Clean exposed surfaces and protect as necessary to ensure freedom from damage and deterioration at the time of project completion.

3.8 PROTECTION

A. Protect installed work from soiling and damage.

B. Protective Coverings: Provide appropriate protective coverings for work that might be damaged by subsequent operations. Maintain protective coverings in place until project completion.

END OF SECTION 017000