01 73 00 - Execution Requirements.pdf

01 73 00 - Execution Requirements

1.0 General

1.1 Section Includes

A. Field engineering.

B. Testing, adjusting, and balancing.

C. Examination.

D. Preparation.

E. Execution.

F. Cutting and patching.

G. Protecting installed construction.

H. Progress cleaning.

I. Correction of defective work.

1.2 Field Engineering

A. Employ land surveyor registered in State of Pennsylvania and acceptable to Engineer and Owner. This cost shall be incidental to the Project.

B. Locate and protect survey control and reference points. Promptly notify Engineer of discrepancies discovered.

C. Control datum for survey is indicated on the Contract Drawings.

D. Field Measurements - The Contractor shall:

1. Verify setbacks and easements; confirm Drawing dimensions and elevations.

2. Take field measurements to fit the Work properly. Recheck measurements before installing each product.

3. Verify space requirements and dimensions of items shown diagrammatically on

Drawings.

E. The Contractor shall provide field engineering services. Establish locations, elevations, lines, and levels using recognized engineering survey practices.

F. The Contractor shall maintain complete and accurate log of control and survey Work as Work progresses.

G. The Contractor shall protect survey control points prior to starting Site Work; preserve permanent reference points during construction.

H. The Contractor shall promptly report to Engineer, in writing, loss or destruction of reference point, or relocation required because of changes in grades, or other reasons.

The Contractor shall make such notice to the Engineer within no more than 24 hours

– verbally; and written notice shall be within 36 hours.

I. Where dislocated survey control points, based on original survey control, are found, the Contractor shall hire a licensed professional surveyor to replace or reset the same.

Make no changes without prior written notice to Engineer, and obtaining their concurrence in writing. Such work shall be at no additional cost to the Owner, unless the Contractor shows – to the satisfaction of the Engineer – that neither they nor any of their subcontractors are responsible for dislocated survey control points.

2.0 Products - Not Used.

3.0 Execution

3.1 Examination

A. The Contractor shall verify that existing Site conditions (including improvements and utilities) and substrate surfaces are acceptable for subsequent Work. Beginning new

Work means acceptance of existing conditions.

B. The Contractor shall verify that existing substrate is capable of structural support or attachment of new Work being applied or attached.

C. The Contractor shall examine and verify specific space and conditions described in individual Specification Sections.

D. The Contractor shall verify that utility services are available with correct characteristics and in correct locations.

E. Failure to inspect, verify and report in writing, shall constitute the Contractor’s acceptance of the field condition, or other work, as fit and proper for the reception of his Work.

F. The Contractor shall promptly report to the Engineer any defects in such Work that render it unsuitable for such proper execution and results. (See part 1.2.H above in this section for the definition of “prompt.”) The Contractor’s written report shall include, but may not be limited to:

1. Description of the Work.

2. List of detrimental conditions, including substrates.

3. List of unacceptable installation tolerances.

4. Recommended corrections.

5. Verify compatibility with and suitability of substrates.

6. Examine roughing-in systems to verify actual locations of connections before equipment and fixture installation.

7. Examine walls, floors, and roofs for suitable conditions where products and systems are to be installed.

G. The Contractor shall proceed with installation only after unsatisfactory conditions have been corrected, to the satisfaction of the Engineer. Proceeding with the Work indicates the Contractor’s acceptance of surfaces and conditions, at no additional cost to the

Owner.

3.2 Preparation

A. The Contractor shall clean substrate surfaces prior to applying the next material or substance according to manufacturer's instructions.

B. The Contractor shall seal cracks or openings of substrate prior to applying next material or substance.

C. The Contractor shall apply manufacturer-required or -recommended substrate primer, sealer, or conditioner prior to applying new material or substance in contact or bond.

3.3 Execution

A. The Contractor shall locate the Work and components of the Work accurately, in correct alignment and elevation, as indicated:

1. Make vertical Work plumb and make horizontal Work level.

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

3. Conceal pipes, ducts, and wiring in finished areas, unless otherwise indicated.

4. Maintain minimum headroom clearance of 8 feet in spaces without a suspended ceiling.

B. The Contractor shall comply with manufacturer's installation instructions, performing each step in sequence. Maintain one set of manufacturer's installation instructions at

Project Site during installation and until completion of construction.

C. When manufacturer's installation instructions conflict with Contract Documents, the

Contractor shall request written clarification from Engineer before proceeding.

D. The Contractor shall verify that field measurements are as indicated on approved Shop

Drawings or as instructed by manufacturer.

E. The Contractor shall secure products in place with positive anchorage devices designed and sized to withstand stresses, vibration, physical distortion, or disfigurement:

1. Secure Work true to line and level and within specified tolerances, or if not specified, industry-recognized tolerances.

2. Physically separate products in place, provide electrical insulation, or provide protective coatings to prevent galvanic action or corrosion between dissimilar metals.

3. Exposed Joints: Provide uniform joint width and arrange to obtain best visual effect. Refer questionable visual-effect choices to Architect/Engineer for final decision.

F. The Contractor shall allow for expansion of materials and building movement.

G. Joints: The Contractor shall make joints of uniform width. Where joint locations in exposed work are not indicated, arrange joints for the best visual effect. Fit exposed connections together to form hairline joints.

H. Climatic Conditions and Project Status: The Contractor shall install each unit of Work under conditions to ensure best possible results in coordination with entire Project:

1. Isolate each unit of Work from incompatible Work as necessary to prevent deterioration.

2. Coordinate enclosure of Work with required inspections and tests to minimize necessity of uncovering Work for those purposes.

I. Mounting Heights: Where not indicated, the Contractor shall mount individual units of

Work at industry recognized standard mounting heights for particular application indicated:

1. Refer questionable mounting heights choices, in writing, to Engineer for final decision.

2. Elements Identified as Accessible to Handicapped: Comply with applicable codes and regulations.

J. The Contractor shall adjust operating products and equipment to ensure smooth and unhindered operation.

K. The Contractor shall clean and perform maintenance on installed Work as frequently as necessary through remainder of construction period. Lubricate operable components as recommended by manufacturer.

3.4 Cutting And Patching

A. The Contractor shall employ skilled and experienced installers to perform cutting and patching.

B. The Contractor shall submit written request in advance of cutting or altering elements affecting:

1. Structural integrity of element.

2. Integrity of weather-exposed or moisture-resistant elements.

3. Efficiency, maintenance, or safety of element.

4. Visual qualities of sight-exposed elements.

5. Work of Owner or separate contractor.

C. The Contractor shall execute cutting, fitting, and patching including excavation and fill to complete Work and to:

1. Fit the several parts together, to integrate with other Work.

2. Uncover Work to install or correct ill-timed Work.

3. Remove and replace defective and nonconforming Work.

4. Remove samples of installed Work for testing.

D. The Contractor shall execute Work by methods to avoid damage to other Work and to provide proper surfaces to receive patching and finishing.

E. The Contractor shall cut masonry and concrete materials using masonry saw or core drill.

F. The Contractor shall restore Work with new products according to requirements of

Contract Documents, and to the satisfaction of the Owner.

G. The Contractor shall fit Work tight to pipes, sleeves, ducts, conduits, and other penetrations through surfaces.

3.5 Protecting Installed Construction

A. The Contractor shall protect installed Work and provide special protection where specified in individual written Specification Sections.

B. The Contractor shall provide temporary and removable protection for installed products. Control activity in immediate Work area to prevent damage.

C. The Contractor shall provide protective coverings at walls, projections, jambs, sills, and soffits of openings.

D. The Contractor shall use durable sheet materials to protect finished floors, stairs, and other surfaces from traffic, dirt, wear, damage, or movement of heavy objects.

E. The Contractor shall prohibit traffic or storage upon waterproofed or roofed surfaces.

When traffic or activity is necessary, obtain recommendations for protection from waterproofing or roofing material manufacturer.

F. Prohibit traffic from landscaped areas.

3.6 Progress Cleaning

A. General: The Contractor shall clean Project Site and work areas daily, including common areas, to the satisfaction of the Owner, Engineer, and any AHJs. Coordinate progress cleaning for joint-use areas where more than one installer has worked.

Enforce requirements strictly. Dispose of materials lawfully:

1. Comply with requirements in NFPA 241 for removal of combustible waste materials and debris.

2. Do not hold materials more than seven days during normal weather or three days if the temperature is expected to rise above 80 deg F (27 deg C).

3. Containerize hazardous and unsanitary waste materials separately from other waste. Mark containers appropriately and dispose of legally, according to regulations.

B. Site: The Contractor shall maintain Project Site free of waste materials and debris.

C. Work Areas: The Contractor shall clean areas where Work is in progress to the level of cleanliness necessary for proper execution of the Work:

1. Remove liquid spills promptly, to the satisfaction of the Owner.

2. Where dust would impair proper execution of the Work, broom-clean or vacuum the entire work area, as appropriate, to the satisfaction of the Owner.

D. Installed Work: The Contractor shall keep installed Work clean. Clean installed surfaces according to written instructions of manufacturer or fabricator of product installed, using only cleaning materials specifically recommended. If specific cleaning materials are not recommended, use cleaning materials that are not hazardous to health or property and that will not damage exposed surfaces.

E. Concealed Spaces: The Contractor shall remove debris from concealed spaces before enclosing the space.

F. Exposed Surfaces in Finished Areas: The Contractor shall clean exposed surfaces and protect as necessary to ensure freedom from damage and deterioration at time of

Substantial Completion.

G. Waste Disposal: Burying or burning waste materials on-site will not be permitted.

Washing waste materials down sewers or into waterways will not be permitted.

H. During handling and installation, the Contractor shall clean and protect construction in progress and adjoining materials already in place. Apply protective covering where required to ensure protection from damage or deterioration at Substantial Completion.

I. The Contractor shall clean and provide maintenance on completed construction as frequently as necessary through the remainder of the construction period. Adjust and lubricate operable components to ensure operability without damaging effects.

J. Limiting Exposures: The Contractor shall supervise construction operations to assure that no part of the construction, completed or in progress, is subject to harmful, dangerous, damaging, or otherwise deleterious exposure during the construction period.

3.7 Correction of Defective Work

A. The Contractor shall repair or remove and replace defective construction. Restore damaged substrates and finishes:

1. Repairing includes replacing defective parts, refinishing damaged surfaces, touching up with matching materials, and properly adjusting operating equipment.

B. The Contractor shall restore permanent facilities used during construction to their specified condition.

C. The Contractor shall remove and replace damaged surfaces that are exposed to view if surfaces cannot be repaired without visible evidence of repair.

D. The Contractor shall repair components that do not operate properly. Remove and replace operating components that cannot be repaired.

E. The Contractor shall remove and replace chipped, scratched, and broken glass or reflective surfaces.

F. All repairs and/or corrections of defective Work shall be to the satisfaction of the

Owner, and at no additional cost to the same.

END OF SECTION