03f. Attachment A - TEB ATCT Glass Repair SOW 102218.pdf

Teteboro ATCT Cab Glass Repair

PART I - SECTION C

SCOPE OF WORK

The contractor shall provide all material, equipment and labor for the replacement of five (5) windows in the FAA Airport Traffic Control Tower Cab at Teterboro Airport, located in Teterboro, New Jersey.

1. Provide window, glazing and glazing accessories as needed for a complete and proper installation.

Contractor must confirm all site measurements.

2. The window to be replaced is trapezoidal in shape, 1inch Insulated Clear Glass Unit (one lite of 1/4-inch monolithic annealed glass and second lite of 1/4-inch monolithic annealed glass separated by a 1/2-inch dehydrated air space, hermetically sealed with an open 12-inch long capillary/breather tube for pressure equalization). “Exact measurements shall be the responsibility of the contractor”

3. The contractor shall be responsible for confirmation of the manufacture, size and type window to be installed. A site visit to the facility shall be made to make these determinations.

4. The window shall be removed in one piece and disposed of off the airport by the contractor.

5. The window is held in place by a neoprene gasket with a metal spine on the interior and exterior sides.

6. The neoprene gaskets are further retained by sectional aluminum metal frames of Kawneer No. 24-304 or equal, on the interior side, and Kawneer No. 14-321 or equal on the exterior of the cab.

7. The cab is atop of a 60' high shaft placing the top of the windows approximately 75' above ground. Means must be provided by the contractor for a working surface for his men and for removing, lowering and raising the window. Since the window is in a sloping position, a glass handling suction machine with a counterweight is recommended. Rigging a scaffold down from the cab roof and parapet will not be permitted.

8. All work shall be completed within 5 calendar days upon receipt of glass by contractor, from the manufacturer.

INSURANCE REQUIREMENT

GENERAL LIABILITY

General Aggregate $3,000,000 Products-Comp/Operations Aggregate $3,000,000 Each Occurrence $3,000,000

AUTOMOBILE LIABILITY

Combined Single Limit $3,000,000

WORKERS COMPENSATION

Statutory As-Required by State

The certificate of insurance must include the MWA# M-1050. The Port Authority of New York and New Jersey and the FAA must be named as additional insured under the policy.

IMMUNITY CLAUSE REQUIREMENT

The certificate of insurance and liability policy MUST contain the following endorsement for the above liability coverage:

“The insurer(s) shall not, without obtaining the express advance written permission from the General Counsel of the Port Authority, raise any defense involving in any way the jurisdiction of the Tribunal over the person of the Port Authority, the immunity of the Port Authority , its Commissioners, officers, agents or employees, the governmental nature of the Port Authority or the provisions of any statures respecting suits against the Port Authority.”

WINDOW ISSUES:

Side A B 2 Fog 3 Fog 4 Crack 5 Fog 6 Double

Section 01100

GENERAL CONDITIONS

Part 1 - GENERAL

1.1 SITE VISIT

Anthony Scozzafava, Teterboro Manager, shall be contacted at (201) 368-6651 to arrange for a site visit and for coordination of work at the facility.

1.2 WORK SCHEDULE

Work will be normally performed Monday through Friday from 6:30 a.m. to 4:30 p.m. unless approved, otherwise by the Engineer.

1.3 CRANE COORDINATION

Contractor shall provide the FAA the anticipated height of the crane (AGL) a minimum of thirty (30) days in advance to allow for filing of FAA Form 7460-1. Crane shall have an orange and white checkered flag mounted to the highest point at all times when the crane is in use.

1.4 CLEAN UP

Upon completion of work all surplus material, rubbish, and debris shall be removed from the site. Any area disturbed or items damaged shall be restored or repaired at no additional cost.

1.5 WORKMANSHIP

The contractor shall be responsible for any damage to buildings or FAA equipment which results from equipment or workmanship which are inferior, defective or not in accordance with the terms of the contract. In the event of such damage, the contractor shall affect all necessary repairs, and if proper restoration requires replacement, the contractor shall bear the cost thereof.

1.6 WARRANTY

The glazing contractor shall guarantee his workmanship against leaks and installation defects for a period of two years from the date of installation. During construction, care shall be taken to avoid deflected panes (sometimes caused by assembling glass plates in horizontal position) which may produce a lens affect and cause double images or ghosts. The guarantee shall cover the aforementioned defect.

1.7 PROTECTION

During the removal and installation of the window, take all necessary steps to protect the inside of the cab from the weather (wind, rain, etc.).

Section 08800

CAB GLAZING SYSTEM

PART 1 - GENERAL

1.1 SUMMARY

A. This Section includes glazing for the following products, including those specified in other Sections where glazing requirements are specified by reference to this Section:

1. Glazing at the Control Tower Cab.

1.2 REFERENCE STANDARDS

A. American Architectural Manufacturers Association (AAMA)

1. 800: Voluntary Specifications and Test Methods for Sealants.

2. SF1: Dense Rubber-Like Compression Gasket Materials.

B. American National Standards Institute (ANSI)

1. Z97.1: Glazing Materials Used In Buildings-Safety Performance Specifications and Method of Test.

C. American Society for Testing and Materials (ASTM)

1. ASTM C 1036 Flat Glass

2. ASTM C 1076 Standard Test Method for determining Compatibility of Liquid-Applied

Sealants with Accessories Used in Structural Glazing Systems.

3. ASTM C 1172 Standard Specification for Laminated Architectural Flat Glass.

4. ASTM C 1184 Standard Specification for Structural Silicone Sealants.

5. ASTM C 1401 Standard Guide for Structural Sealant Glazing.

6. ASTM C 864 Standard Specification for Dense Elastomeric Compression Seal Gaskets, Setting Blocks, and Spacers.

7. ASTM D 395 Standard Test Methods for Rubber Property-Compression Set.

8. ASTM E 1300 Standard Practice for Determining Load Resistance of Glass in Buildings.

9. ASTM E 2461 Standard practice for Determining the Thickness of Glass in Airport Traffic

Control Tower Cabs.

10. ASTM E 773 Standard Test Method for Accelerated Weathering of Sealed Insulating Glass

Units.

D. Glass Association of North America (GANA)

1. Glazing Manual.

2. Sealant Manual.

3. Laminated Glazing Manual.

E. Sealed Insulating Glass Manufacturers Association (SIGMA)

1. A1202 Commercial Insulating Glass Dimensional Tolerances.

2. TB3000 Glazing Guidelines for Sealed Insulating Glass Units.

1.3 DEFINITIONS

A. Manufacturer: Where used in this Section to refer to a firm that produces primary glass or fabricated glass as defined in the referenced glazing standard.

B. Deterioration of Coated Glass: Defects developed from normal use that are attributed to the manufacturing process and not to causes other than glass breakage and practices for maintaining and cleaning coated glass contrary to manufacturer's directions. Defects include peeling, cracking, and other indications of deterioration in metallic coating.

C. Deterioration of Laminated Glass: Defects developed from normal use that are attributed to the manufacturing process and not to glass breakage and practices for maintaining and cleaning laminated glass contrary to manufacturer's directions. Defects include edge separation, delamination materially obstructing vision through glass, and blemishes exceeding those allowed by referenced laminated glass standard.

D. Deterioration of Insulating Glass: Failure of the hermetic seal under normal use due to causes other than glass breakage and improper practices for maintaining, and cleaning insulating glass.

Evidence of failure is the obstruction of vision by dust, moisture, or film on the interior surfaces of glass. Improper practices for maintaining and cleaning glass do not comply with the manufacturer's directions.

1.4 SYSTEM PERFORMANCE REQUIREMENTS

A. General: Provide glazing systems that are produced, fabricated, and installed to withstand normal thermal movement, wind loading, and impact loading (where applicable), without failure including loss or glass breakage attributable to the following: defective manufacture, fabrication, and installation; failure of sealants or gaskets to remain watertight and airtight;

deterioration of glazing materials; and other defects in construction.

1. Temperature Change (Range): 120 F deg, ambient; 180 F deg, material surfaces.

1.5 NOT USED.

1.6 QUALITY ASSURANCE

A. Glazing Publications: Comply with published recommendations of glass product manufacturers and organizations identified in “REFERENCED STANDARDS” Article of this section, except where more stringent requirements are indicated.

B. Insulating Glass Certification Program: Provide insulating glass units permanently marked either on spacers or at least one component lite of units with appropriate certification label of inspecting and testing agency indicated below:

1. Insulating Glass Certification Council (IGCC).

2. Associated Laboratories, Inc. (ALI).

3. National Certified Testing Laboratories (NCTL).

C. Glazier Qualifications: Engage an experienced glazier who has completed glazing similar in material, design, and extent to that indicated for Project with a record of successful in-service performance.

D. Single-Source Responsibility for Glass: Obtain glass from one source.

E. Single-Source Responsibility for Glazing Accessories: Obtain glazing accessories from one source for each product and installation method indicated.

1.7 DELIVERY, STORAGE, AND HANDLING

A. Prior to delivery all the cab glass shall be boxed and crated for shipping. Under no circumstances shall the cab glass be installed in the cab framing before delivering to the site.

The cab glass shall be shipped to the site in a vertical position and stored in a vertical position against a sturdy support at an angle of approximately 7 degrees from vertical.

B. Deliver products to the site in unopened containers, labeled plainly with manufacturer’s names and brands.

C. Store glass and setting materials in safe, dry locations with adequate ventilation free from heavy dust, not subject to combustion products or sources of water and that shall permit easy access for inspection and handling. Do not unpack until needed for installation.

D. Deliver caulking and sealing compounds to the jobsite in sealed containers labeled to show the designated name, formula, or specification number; lot number, color, date of manufacturer, shelf life, and curing time when applicable.

E. Handle and install materials in a manner that will protect them from damage.

F. Unpack glass from the front of the case or container and avoid sliding the glass against itself or any uncushioned materials. Stack individual lites on edge using clean, cushioned pads placed at the quarter points of the bottom edge. Protect all edges from impact and use a clean dry separating material.

1.8 PROJECT CONDITIONS

A. Environmental Conditions: Do not start glazing work until the outdoor temperature is above 40 degrees F and rising, unless procedures recommended by the glass manufacturer and approved by the COTR are made to warm the glass and rabbet surfaces. Provide ventilation to prevent condensation of moisture on glazing work during installation. Do not perform glazing work during damp or rainy weather.

PART 2 - PRODUCTS

2.1 MANUFACTURERS

Subject to compliance with this Section, provide glass products from one of the following manufacturers:

1. PPG Glass; Starphire Ultra-Clear Glass.

2. Pilkington Optiwhite Low Iron Float Glass.

3. Schott; Amiran Water-White Glass.

4. SunGuard Advanced Architectural Glass; UltraWhite Low-Iron Glass.

2.2 GLASS

A. Glass thickness shown on the drawings or specified herein are minimums. Manufacturer to certify that glass can withstand all forces specified. The thickness of the cab glass shall be determined by ASTM E 2461 for a probability of breakage of 1 lite per 1000 at the first occurrence of the design windloading per ASCE 7. The Cab glass is not to be tinted, tempered, heat strengthened, or chemically strengthened. Glass Clad Polycarbonate is not acceptable. No on-site grinding or buffing of the glass is allowed. Glass edges shall be clean cut, undamaged, and flat ground.

Annealed Glass: ASTM C 1036, Type I, Class 1 with the following qualities:

1. Allowable point blemish size and distribution: Less than 1.0 mm with allowed minimum of 1500 mm (60-inch) separation. No others allowed.

2. Allowable linear blemish size and distribution: Faint less than 0.75 mm with allowed minimum of 1500 mm (60-inch) separation. No others allowed.

3. Allowable shell chip size and distribution: Chip depth and chip width less than or equal to 3 mm. Chip length less than or equal to 6 mm.

4. Allowable scratches: None.

B. Insulated Annealed Glass Units: Provide 1-0 inch Insulated Clear Glass Units. SIGMA A1202 and SIGMA TB-3000, fabricated of two lites of 1/4-inch monolithic annealed glass separated by a 1/2-inch dehydrated air space, hermetically sealed. Metal separator color shall be dark bronze or black. Units shall be double sealed. Primary seal shall be polyisobutylene; secondary seal shall be polyurethane or silicone. Within the bottom 1/2 of a vertical edge in each of the units, provide and install an open 12-inch long capillary/breather tube for pressure equalization. The tube shall be open during installation. Apply Low E coating to the Number 2 surface.

2.3 SETTING MATERIALS

A Provide as specified in the GANA Glazing Manual, SIGMA TB3000, SIGMA TB-3001, and manufacturer's recommendations, unless specified otherwise herein. Do not use metal sash putty, nonskinning compounds, nonresilient pre-formed sealers, or impregnated pre-formed gaskets. Materials exposed to view and unpainted shall be gray or neutral color.

B. Elastomeric Sealant. ASTM C 920, Type S or M, Grade NS, Class 12.5, Use G. Use for channel or stop glazing sash. Sealant shall be chemically compatible with setting blocks, edge blocks, and sealing tapes, with sealants used in manufacture of insulating glass units. For laminated glass the sealant shall be compatible with PVB interlayer. Color of sealant shall be as selected.

C. Pre-formed Channels: Neoprene, vinyl, or rubber, as recommended by the glass manufacturer for the particular condition.

D. Sealing Tapes: Pre-formed, semi-solid, polymeric-based material of proper size and compressibility for the particular condition. Use only where glazing rabbet is designed for tape and tape is recommended by the glass or sealant manufacturer. Provide spacer shims for use with compressible tapes. Tapes shall be chemically compatible with the product being set.

E. Setting Blocks and Edge Blocks: Lead or neoprene of 80 to 90 Shore "A" durometer hardness, chemically compatible with sealants used, and of sizes recommended by GANA and the glass manufacturer.

F. Accessories: Provide as required for a complete installation, including glazing points, clips, shims, angles, and spacer strips. Provide non-corroding metal accessories. Provide primer-sealers and cleaners as recommended by the glass and sealant manufacturers.

PART 3 - EXECUTION

3.1 EXAMINATION

Examine glass framing, with glazier present, for compliance with the following:

1. Manufacturing and installation tolerances, including those for size, squareness, offsets at corners.

2. Presence and functioning of weep system.

3. Minimum required face or edge clearances.

4. Effective sealing between joints of glass-framing members.

Do not proceed with glazing until unsatisfactory conditions have been corrected.

3.2 PREPARATION

A. Preparation, unless otherwise specified or approved, shall conform to the applicable recommendations in the GANA, SIGMA, and the glass manufacturer’s recommendations.

Determine the sizes to provide the required edge clearances by measuring the actual opening to receive the glass.

B. Where window mullions also structurally support the cab roof and penthouse, the full dead load of the Cab, not including the Cab ceiling grid and tiles, shall be applied before taking final measurements of the Cab window openings. The Cab glass shall then be cut to fit those dimensions.

C. Grind smooth in the shop glass edges that will be exposed in finish work such as butt glazing.

D. Leave removable labels in place until the installation is approved, except remove applied labels on heat-absorbing glass and on insulating glass units as soon as glass is installed.

E. Clean glazing channels, stops, and rabbets to receive the glazing materials, making free from obstructions and deleterious substances which might impair the work

3.3 GLASS SETTING

Glazing, unless otherwise specified or approved, shall conform to applicable recommendations in the GANA, SIGMA, and the glass manufacturer's recommendations. Handle and install glazing materials in accordance with the glass manufacturer's instructions. Use beads or stops which are furnished with items to be glazed to secure the glass in place. Avoid contact of glass edges with framing members and do not rest the glass on any uncushioned surfaces. Avoid rotating any glass on the corners. Inspect glass edges prior to installation. Glass of questionable quality should not be installed without approval of the Contracting Officer's Technical Representative.

Comply with the manufacturer's warranty and written instructions, except as indicated. Secure glass in place with bolts and spring clips. The minimum clearance between bolts and edge of glass unit shall be 3/16-inch. The glass shall be edged with 3/16-inch thick continuous neoprene, vinyl, or other approved material. Trim edging after installation. The channel shapes or strips shall be firmly held against the glass by the spring action of the extruded metal moldings or metal bars. Resilient setting blocks, spacer strips, clips, bolts, washers, angles, applicable glazing compound, and resilient channels or cemented-on materials shall be as recommended in the written instructions of the glass manufacturer which shall be submitted and approved prior to shipping the Cab glass.

Do not grind, nip, or cut edges or corners of units after the units have left the factory. Springing, forcing, or twisting of units during setting will not be permitted. Handle units so as not to strike frames or other objects. Installation shall conform to applicable recommendations of SIGMA TB-3000.

Tolerances and Clearance of Units: Design to prevent the transfer of stress in the setting frames to the glass. Springing, twisting, or forcing of units during setting will not be permitted.

3.4 GLAZING, GENERAL

A. Comply with combined recommendations of manufacturers of glass, sealants, gaskets, and other glazing materials, except where more stringent requirements are indicated, including those in referenced glazing publications.

B. Glazing channel dimensions as indicated on Drawings provide necessary bite on glass, minimum edge and face clearances, and adequate sealant thicknesses, with reasonable tolerances. Adjust as required by Project conditions during installation.

C. Protect glass from edge damage during handling and installation as follows:

1. Use a rolling block in rotating glass units to prevent damage to glass corners. Do not impact glass with metal framing. Use suction cups to shift glass units within openings; do not raise or drift glass with a pry bar. Rotate glass lites with flares or bevels on bottom horizontal edges so edges are located at top of opening, unless otherwise indicated by manufacturer's label.

2. Remove damaged glass from Project site and legally dispose of off site. Damaged glass is glass with edge damage or other imperfections that, when installed, weaken glass and impair performance and appearance.

D. Apply primers to joint surfaces where required for adhesion of sealants, as determined by preconstruction sealant-substrate testing.

E. Install elastomeric setting blocks in sill rabbets, sized and located to comply with referenced glazing standard, unless otherwise required by glass manufacturer. Set blocks in thin course of compatible sealant suitable for heel bead.

F. Do not exceed edge pressures stipulated by glass manufacturers for installing glass lites.

G. Provide spacers for glass sizes larger than 50 united inches (length plus height) as follows:

1. Locate spacers inside, outside, and directly opposite each other. Install correct size and spacing to preserve required face clearances, except where gaskets and glazing tapes are used that have demonstrated ability to maintain required face clearances and comply with system performance requirements.

2. Provide 1/8-inch minimum bite of spacers on glass and use thickness equal to sealant width.

With glazing tape, use thickness slightly less than final compressed thickness of tape.

H. Provide edge blocking to comply with requirements of referenced glazing publications, unless otherwise required by glass manufacturer.

I. Set glass lites in each series with uniform pattern, draw, bow, and similar characteristics.

3.5 PROTECTION

A. Protect exterior glass from breakage immediately after installation by attaching crossed streamers to framing held away from glass. Do not apply markers to glass surface. Do not remove labels until after Final Acceptance except remove labels on heat-absorbing glass and on insulating glass units as soon as the glass is installed. Clean surfaces.

B. Follow recommendations of GANA Glazing Manual and the glass manufacturer. Protect the glass from weld splatter by using plywood or heavy tarpaulins. Do not place insulation over the glass for protection or keep shading material on the glass because excess thermal buildup could result in glass breakage. Do not allow materials to be stored or placed in contact with the glass. Protect the glass with a sheet of clear plastic.

3.6 CLEANING

A. Follow recommendations of GANA Glazing Manual and the glass manufacturer. Clean glass and metal frequently during construction. Clean glass surfaces and remove labels, paint spots, putty, and other defacement as required to prevent staining. Glass shall be cleaned with a soft, clean, grit-free cloth, mild soap, detergent, or slightly acidic cleaning solution. Rinse immediately after cleaning with water and promptly remove excess rinse water with a clean squeegee. Razor blades or other sharp objects shall not be used to clean glass surfaces. Glass shall be clean at the time the Work is accepted.

END OF SECTION