06a A01 SOW_ Replace Roof and Hatches ITO ATCT Hilo HI.pdf

STATEMENT OF WORK

Remove and Replace the Roof Waterproofing Membrane, and Roof Access

Hatches at the Cab Roof and Catwalk Roof

ITO ATCT

Hilo, Hawaii

Air Traffic Control Tower (ATCT) outside Hilo Airport

102 Ailolo Street

Hilo, HI 96720

Project Engineer:

Leila Salehi

AJW-2W15U

TABLE OF CONTENTS

1.0 GENERAL

PROJECT PHASING AND NOTICES TO PROCEED

2.0 SCOPE OF WORK

PHASE 1 – ROOF WORK

2.1 Cab Roof and Catwalk Roof – Complete Removal and Replacement Catwalk Drain

2.2 Existing Perimeter Guardrails and Railing Penetrations

PHASE 2 – ROOF ACCESS HATCH WORK

2.3 Access Hatch Replacement – Cab Roof and Catwalk Roof

2.4 Catwalk Hatch and Ladder Specific Configuration

2.5 Sealant, Flashing, Penetrations, and Waterproofing

2.6 Existing Corroded or Deteriorated Components

2.7 FAA ANTENNAS, AIR TERMINALS, CABLES, CONDUITS, AND OPERATIONAL EQUIPMENT

2.8 Water-Intrusion Performance Requirement

2.9 Environmental and EOSH Requirements

2.10 Roof Area Information

3.0 TECHNICAL REQUIREMENTS

4.0 SUBMITTALS

5.0 WORK HOURS, SITE ACCESS, AND OPERATIONAL REQUIREMENTS

5.1 Authorized Interior/Operational Work Window

5.2 Early Arrival and Preparation

5.3 Mandatory Daily Cleanup and Turnover

5.4 Work After Interior/Operational Area Cleanup

5.5 Operational Coordination

6.0 CRANE, LIFTING, AND MATERIAL HANDLING

7.0 PROTECTION OF EXISTING FACILITIES

8.0 CLEANUP AND HOUSEKEEPING

9.0 INSPECTIONS AND ACCEPTANCE

10.0 WARRANTY REQUIREMENTS

11.0 PERFORMANCE PERIOD

12.0 CLARIFICATION OF CONTRACTOR AND FAA RESPONSIBILITIES

13.0 PROJECT COMPLETION

Attachment:

1. Drawing, IIT0-24012663-0001, 1 page

1.0 GENERAL

The purpose of this project is to remove and replace the existing Cab Roof and Catwalk

Roof Thermoplastic Polyolefin (TPO) waterproofing systems and to remove and replace the existing Cab Roof and Catwalk Roof access hatches at the Federal Aviation

Administration (FAA) Air Traffic Control Tower (ATCT) facility in Hilo, Hawaii.

The work is intended to correct existing roof drainage and ponding conditions, eliminate water intrusion associated with the Cab Roof and Catwalk areas, provide complete watertight roof and roof access hatch systems, and provide safe access through the new access hatch installations.

Water intrusion has been observed at multiple locations below the Catwalk and Cab

Roof areas. The Contractor’s responsibility under this project is to correct exterior roof-related conditions within the defined project scope, including roofing membrane, drainage interfaces, flashing, hatch systems, penetrations, railing-post/cone interfaces, roof-to-wall interfaces, sealants, and related waterproofing conditions.

Broad repair or replacement of interior finishes, HVAC equipment, electrical equipment, or other unrelated building systems affected by previous water intrusion is not included unless specifically identified in this SOW or subsequently authorized by written contract modification.

Due to the coastal, high-moisture, and salt-air environment in Hilo, exterior materials must be corrosion resistant. New hatch assemblies, curbs, exposed support components, hardware, fasteners, anchors, and other new exposed metal components furnished under this project must be stainless steel unless otherwise specifically approved by the Contracting Officer.

The Contractor must independently field verify all existing conditions, dimensions, measurements, elevations, clearances, openings, hatch dimensions, ladder locations, roof areas, penetrations, and other conditions necessary to perform the work.

Dimensions and measurements provided by the FAA are for reference and coordination purposes only. The Contractor is responsible for obtaining and verifying all measurements required for fabrication, ordering, and installation before proceeding with the work.

The Contractor must not rely solely on FAA-provided drawings, photographs, dimensions, or measurements for fabrication or material ordering. Any discrepancy identified during field verification must be reported to the COR before fabrication or installation.

All Contractor coordination with FAA organizations must be conducted through the Contracting

Officer’s Representative (COR). The COR will coordinate with the Systems Support Center

(SSC), Air Traffic Operations, EOSH, and other FAA stakeholders as necessary.

The Contractor must not independently coordinate outages, shutdowns, relocation of operational FAA equipment, or other operational activities directly with FAA organizations unless specifically authorized by the COR.

The Contractor must provide all labor, materials, tools, equipment, supervision, fabrication, installation, field verification, temporary protection, cleanup, and incidentals necessary to provide complete, functional, watertight, and code-compliant roof and hatch systems.

PROJECT PHASING AND NOTICES TO PROCEED

The work under this project will be performed in two (2) phases to allow the roof work to proceed while the new roof access hatches are being fabricated and/or procured.

Phase 1 – Roof Work: Phase 1 includes the roof work identified in Sections 2.1 and 2.2 and the associated roofing, drainage, flashing, waterproofing, penetrations, protection, and related work necessary to provide a complete and watertight roofing system.

Phase 2 – Roof Access Hatch Work: Phase 2 includes the work beginning in Section 2.3 associated with removal and replacement of the Cab Roof and Catwalk Roof access hatches, the Catwalk hatch and ladder reconfiguration, and associated modifications, flashing, waterproofing, structural support, anchorage, and related work required for complete hatch installations.

The Contracting Officer will issue a separate Notice to Proceed (NTP) for each phase. The Contractor must not begin Phase 2 work until the Phase 2 NTP has been issued by the Contracting Officer.

The roof access hatches are anticipated to be long-lead items with an estimated lead time of approximately eight (8) to nine (9) weeks. The Contractor must promptly notify the Contracting Officer and COR if the anticipated hatch lead time changes.

The Contractor must coordinate Phase 1 work so that the completed roofing system remains safe, protected, and watertight while awaiting commencement of Phase 2. Any temporary conditions necessary to accommodate the future hatch installation must be maintained in a safe and watertight condition.

2.0 SCOPE OF WORK

PHASE 1 – ROOF WORK

2.1 Cab Roof and Catwalk Roof – Complete Removal and Replacement

The Contractor must:

• Remove and properly dispose of the existing waterproofing/roofing membrane systems at the Cab Roof and Catwalk Roof.

• Prepare existing substrates as necessary to receive the new roofing system.

• Remove incompatible, loose, damaged, or deteriorated materials that interfere with proper installation of the new roofing system.

• Install a new 60-mil single-ply reinforced Polyvinyl Chloride (PVC) roofing membrane system.

• Provide compatible fiberglass-mat faced gypsum roof cover board, or approved equal, as required by the roofing system.

• Provide insulation with an R-value to match existing.

• Install the roofing system in accordance with the roofing manufacturer’s requirements and approved submittals.

• Provide positive slope toward existing roof drains.

• Correct roof conditions within the work area contributing to persistent ponding.

• Ensure the completed roofing system drains freely and does not permit persistent ponding water.

• Provide complete flashing and waterproofing at parapets, roof edges, drains, hatch curbs, equipment bases, penetrations, transitions, conduits, railing-post/cone penetrations, and other roof interfaces.

• Verify that existing roof drains are open, functional, and properly integrated into the new roofing system.

• Provide new flashing, seals, and waterproofing at roof-drain interfaces.

• Provide a minimum twenty (20) year manufacturer roofing warranty.

Catwalk Drain

The Contractor must verify the visible and accessible Catwalk drain connection and its interface with the roofing system.

Leakage attributable to the roofing/drain waterproofing interface must be corrected as part of the new roofing installation.

If concealed drain piping is found to be damaged, deteriorated, or defective beyond the roofing interface, the Contractor must stop work in the affected area and notify the COR before performing additional work.

2.2 Existing Perimeter Guardrails and Railing Penetrations

Existing perimeter guardrails are to remain in place unless otherwise specifically identified in the contract documents.

The Contractor must protect existing guardrails from damage during construction.

Where existing guardrail posts, railing supports, cones, or similar components penetrate or interface with the roofing system, the Contractor must provide complete new flashing, sealing, and waterproofing necessary to establish a watertight interface.

The completed installation must prevent water from migrating through or around these penetrations and into the roofing assembly or facility.

Removal or replacement of unrelated existing perimeter guardrail systems is not included unless specifically authorized by written contract modification.

PHASE 2 – ROOF ACCESS HATCH WORK

2.3 Access Hatch Replacement – Cab Roof and Catwalk Roof

The Contractor must completely remove and replace two (2) existing roof access hatch systems:

1. Cab Roof access hatch to match existing.

2. Catwalk Roof access hatch - reconfigured.

Each new hatch installation must include, as applicable:

• New stainless-steel hatch assembly.

• New curb.

• Flashing and waterproofing.

• Exposed support framing/components.

• Hinges.

• Hardware.

• Fasteners.

• Anchors.

• Accessories necessary for a complete installation.

All new hatch assemblies and associated exposed metal components must be stainless steel and suitable for the coastal, high-moisture, salt-air environment.

Hatches must be fully weather-tight and completely integrated into the new roofing system.

The Contractor must field verify all dimensions and existing conditions before fabrication.

Shop drawings must identify:

• Hatch dimensions.

• Opening dimensions and clearances.

• Curb configuration.

• Flashing details.

• Support and attachment details.

• Hatch swing and hinge orientation.

• Ladder alignment.

• Anchorage details.

• Personnel access and transition clearances.

2.4 Catwalk Hatch and Ladder Specific Configuration

The new Catwalk access hatch must be reconfigured by rotating the hatch and ladder 90 degrees counter-clockwise. Additionally, the breakroom ladder access shaft, wall and cabinets must be modified to accommodate the new configuration and provide a 36" clear landing at the base of the ladder (Refer to Drawing D001).

The Contractor must:

• Modify or relocate the existing Catwalk access ladder as required by the approved configuration.

• Coordinate the ladder location with the new hatch opening.

• Remove the wall, partition, or obstruction adjacent to the Catwalk access ladder where indicated by the FAA-approved configuration.

• Field verify the limits of wall/partition removal before demolition.

• Provide required guard rail (south side) and self closing gate as required by applicable

OSHA criteria.

• Provide smooth, snag-free ladder rail terminations.

• Maintain an unobstructed personnel transition through the hatch.

• Submit the final hatch and ladder configuration for FAA review before fabrication or field modification.

Any structural support, anchorage, or modification required for the new hatch/ladder configuration must be included where shown by the approved Contractor submittal.

2.5 Sealant, Flashing, Penetrations, and Waterproofing

The Contractor must:

• Remove deteriorated or incompatible sealants, flashing, and waterproofing materials within the defined roofing work areas.

• Provide new compatible sealant and flashing systems.

• Waterproof roof-to-wall interfaces.

• Waterproof hatch curbs.

• Waterproof drains.

• Waterproof equipment bases and penetrations.

• Waterproof conduit penetrations.

• Waterproof railing-post/cone interfaces.

• Waterproof structural interfaces and transitions.

• Integrate all existing penetrations within the roofing work area into the new roofing system.

• Ensure all penetrations and interfaces are completely watertight.

The completed roof systems must provide a continuous waterproofing envelope.

2.6 FAA ANTENNAS, AIR TERMINALS, CABLES, CONDUITS, AND OPERATIONAL

EQUIPMENT

The Contractor must protect existing FAA antennas, air terminals, lightning protection components, cables, conduits, communications systems, electrical systems, HVAC equipment, and other operational equipment during construction.

The Contractor is not responsible for independently disconnecting, removing, relocating, reinstalling, reconnecting, calibrating, testing, or restoring FAA mission-critical antennas, air terminals, or other operational FAA systems when such activities require FAA technical personnel.

Required temporary relocation, disconnection, removal, reinstallation, reconnection, testing, or restoration of FAA mission-critical operational equipment will be coordinated by the COR with the appropriate FAA SSC technicians and other FAA technical personnel.

The Contractor must provide sufficient advance notice to the COR whenever its construction activities require FAA equipment to be temporarily moved, disconnected, protected, or otherwise addressed.

The Contractor must coordinate its construction sequence with the COR so that

FAA/SSC technical support can be scheduled as necessary. The Contractor must not disconnect, relocate, modify, reconnect, or otherwise disturb operational FAA systems without specific authorization.

The Contractor remains responsible for:

• Provide grounding at each new access hatch.

• Protecting FAA equipment from construction damage.

• Coordinating construction activities around existing equipment.

• Providing access necessary for FAA/SSC personnel to perform FAA equipment work.

• Temporarily supporting or protecting non-operational cables/conduits where specifically authorized.

• Preventing damage from roofing materials, tools, debris, water, dust, fumes, or construction activities.

2.7 Water-Intrusion Performance Requirement

The complete Cab Roof and Catwalk Roof systems must form a continuous watertight assembly.

This includes:

• Roofing membranes.

• Roof drains and drain interfaces.

• Hatch curbs.

• Flashing.

• Roof penetrations.

• Railing-post/cone interfaces.

• Roof-to-wall interfaces.

• Equipment penetrations.

• Conduits.

• Sealants.

• Roofing transitions.

The completed work must correct roof-related pathways contributing to water intrusion and eliminate persistent ponding within the completed roofing areas.

If the Contractor discovers a water-intrusion source that is outside the defined roofing/waterproofing scope, the Contractor must notify the COR before performing additional work.

2.8 Environmental and EOSH Requirements

The Contractor must:

• Provide Safety Data Sheets (SDS) for applicable materials.

• Properly handle, store, and dispose of adhesives, coatings, solvents, roofing debris, and other construction materials.

• Protect HVAC air intakes from construction dust, fumes, odors, and debris.

• Protect occupied areas and operational equipment.

• Prevent adverse Indoor Air Quality (IAQ) impacts.

• Maintain required fall protection.

• Maintain safe access and egress.

• Comply with applicable OSHA and FAA safety requirements.

• Immediately notify the COR of any unsafe condition, unexpected water-intrusion pathway, concealed deterioration, or condition that could affect FAA operations or the National

Airspace System (NAS).

2.9 Roof Area Information

Approximate roof areas are:

• Cab Roof: 512.25 square feet.

• Catwalk Roof: 737.75 square feet.

• Total combined roof area: approximately 1,250 square feet.

These dimensions are provided for general information.

The Contractor must verify all field dimensions, quantities, elevations, penetrations, and existing site conditions before ordering materials or commencing fabrication.

3.0 TECHNICAL REQUIREMENTS

All work must comply with the latest applicable editions of the following codes, standards, and requirements, as applicable to the work actually performed:

• American Institute of Steel Construction (AISC), as applicable.

• American Welding Society (AWS), as applicable.

• International Building Code (IBC).

• FAA-STD-019, Lightning and Surge Protection, Grounding, Bonding, and Shielding

Requirements for Facilities and Electronic Equipment, where applicable.

• FAA-C-1217, Electrical Work, Premises Wiring, where applicable.

• NFPA 70, National Electrical Code (NEC), where applicable.

• OSHA 29 CFR 1910.

• OSHA 29 CFR 1926.

• Applicable OSHA fall-protection requirements.

• Applicable ASTM standards.

• Applicable manufacturer installation requirements.

• Applicable structural design, anchorage, and loading criteria for new hatch, support, and modified ladder/access components.

All exterior materials must be suitable for the Hilo coastal, high-moisture, salt-air environment.

4.0 SUBMITTALS

The Contractor must provide the following submittals, as applicable:

1. Project Health and Safety Plan.

2. Work plan and detailed project schedule.

3. Product data for the PVC roofing membrane system.

4. Product data for insulation and fiberglass-mat faced gypsum roof cover board.

5. Product data for flashing and sealant systems.

6. Product data for both stainless-steel roof hatch assemblies.

7. Safety Data Sheets (SDS).

8. Roofing manufacturer’s installation requirements.

9. Minimum twenty (20) year manufacturer roofing warranty documentation.

10. Shop drawings for the Cab Roof and Catwalk hatch systems.

11. Shop drawings showing dimensions, clearances, curb/flashing details, hatch orientation, ladder alignment, support/attachment details, and anchorage.

12. Structural calculations for new hatch framing/supports, anchorage, and modified ladder/access components where required.

13. Final Catwalk hatch/ladder configuration for FAA review before fabrication or modification.

The Contractor must allow sufficient time for FAA review before fabrication, ordering of custom components, or installation.

5.0 WORK HOURS, SITE ACCESS, AND OPERATIONAL REQUIREMENTS

5.1 Authorized Interior/Operational Work Window

This is an operational Air Traffic Control Tower. Maintaining uninterrupted FAA and National

Airspace System operations is a primary project requirement.

The authorized Contractor construction work window within the tower and controller operational/controlled areas is 10:30 PM through 4:45 AM, Monday through Friday, unless otherwise specifically approved in advance by the FAA.

The Contractor must plan staffing, mobilization, material handling, construction activities, and demobilization accordingly.

No construction activity that could affect Air Traffic operations may continue beyond the approved work window without prior authorization.

5.2 Early Arrival and Preparation

The Contractor may arrive at the tower as early as 9:00 PM, with the COR present, for approved preparation and coordination activities.

Activities during this preparation period may include:

• Site access and check-in.

• Coordination with the COR.

• Safety briefing.

• Staging of approved materials and equipment.

• Preparation of tools.

• Pre-work inspection.

• Establishment of temporary protection.

• Other non-disruptive preparation necessary for the night’s construction activities.

Early arrival does not authorize the Contractor to begin work that could affect Air Traffic operations before the approved operational work window.

5.3 Mandatory Daily Cleanup and Turnover

The Contractor must stop active construction sufficiently early to ensure that all work inside the tower and within controller operational/controlled areas is completely cleaned, secured, and restored no later than 4:45 AM.

By 5:00 AM, all affected operational areas must be fully ready for normal Air Traffic Control operations.

Before the 5:00 AM operational turnover, the Contractor must:

• Remove tools from operational areas.

• Remove loose materials.

• Remove construction debris.

• Secure unfinished work.

• Remove trip hazards.

• Restore safe access and egress.

• Remove or secure temporary protection as directed.

• Ensure no dust, debris, materials, equipment, cords, or other construction items interfere with FAA personnel or equipment.

• Leave all affected interior areas clean, safe, and ready for Air Traffic operations.

The Contractor must not delay the 5:00 AM operational readiness requirement.

5.4 Work After Interior/Operational Area Cleanup

After the required interior and operational areas have been completely cleaned and released for FAA operations, the Contractor may, with COR coordination, remain outside the tower and outside controller operational/controlled areas to perform activities that do not affect FAA operations.

Such activities may include:

• Additional exterior cleanup.

• Organizing materials.

• Organizing tools and equipment.

• Placing approved materials in designated storage areas.

• Preparing materials and equipment for the following night’s work.

• Waste and debris management.

• Other non-disruptive activities approved by the COR.

These activities must remain outside restricted operational areas and must not interfere with

FAA personnel, Air Traffic operations, SSC activities, facility access, or NAS operations.

5.5 Operational Coordination

All Contractor coordination with FAA operational organizations must be through the

COR unless otherwise specifically authorized.

The COR will coordinate with:

• Air Traffic Operations.

• Systems Support Center (SSC).

• EOSH.

• Other FAA technical personnel and stakeholders as necessary.

The Contractor must provide sufficient advance notice of:

• Planned roof access.

• Crane or lifting activities.

• Activities near antennas or air terminals.

• Activities requiring temporary protection or movement of cables/conduits.

• Activities that could affect FAA equipment.

• Activities potentially requiring an outage or FAA technical support.

• Changes to the approved work sequence.

The Contractor must immediately notify the COR of any condition that may affect operational safety, personnel safety, facility operations, or the NAS.

6.0 CRANE, LIFTING, AND MATERIAL HANDLING

Crane, manlift, or other lifting operations must be coordinated in advance through the

COR.

Lifting activities that could affect FAA operations must occur only during the approved work window and under conditions approved by the FAA.

The Contractor must provide all required qualified operators, rigging, safety controls, barricades, and equipment necessary for its lifting operations.

The Contractor must protect FAA equipment and facilities from damage during lifting and material-handling operations.

7.0 PROTECTION OF EXISTING FACILITIES

The Contractor must protect all existing FAA facilities, finishes, equipment, roof-mounted equipment, antennas, air terminals, cables, conduits, HVAC systems, communications systems, electrical systems, and adjacent property from damage.

Any Contractor-caused damage must be immediately reported to the COR.

Repair of Contractor-caused damage will be the Contractor’s responsibility in accordance with the contract requirements.

Protection of FAA operational equipment does not transfer responsibility for technical disconnection, relocation, calibration, or restoration of mission-critical FAA systems to the Contractor.

8.0 CLEANUP AND HOUSEKEEPING

The Contractor must maintain a clean and safe work site throughout construction.

Construction debris and waste must be removed regularly and must not be allowed to accumulate in operational or access areas.

At the end of each approved night shift, the Contractor must leave all affected interior and operational areas clean, safe, secured, and ready for FAA operations in accordance with Section 5.0.

Upon completion of the project, the Contractor must:

• Remove construction debris and unused materials.

• Remove temporary protection.

• Clean roof surfaces.

• Clean hatch installations.

• Clean drains and roof interfaces.

• Clean surrounding affected surfaces.

• Remove construction residue.

• Leave the project area in a clean and professional condition acceptable to the COR.

9.0 INSPECTIONS AND ACCEPTANCE

The Contractor must provide access for FAA inspection throughout construction.

Deficient or noncompliant work identified during inspection must be corrected before final acceptance.

The Contractor must participate in the Joint Acceptance Inspection (JAI) and correct identified contract deficiencies before final project acceptance.

Final acceptance will include verification, as applicable, of:

• Roofing installation.

• Watertight roof conditions.

• Drainage.

• Hatch operation.

• Flashing and sealants.

• Penetration waterproofing.

• Catwalk hatch/ladder access configuration.

• Cleanup.

• Required documentation.

• Warranty documentation.

10.0 WARRANTY REQUIREMENTS

The Contractor must provide manufacturer warranties for the roofing system and installed equipment as applicable.

The roofing system warranty must be a minimum of twenty (20) years.

The Contractor must warrant workmanship, waterproofing, flashing, hatch installation, and other installed components against defects and water intrusion in accordance with the contract requirements.

11.0 PERFORMANCE PERIOD

The Contractor must promptly notify the Contracting Officer and COR of any anticipated long-lead material or equipment issue that could affect either phase or the approved project schedule.

The Contractor is responsible for planning procurement, fabrication, delivery, staffing, and construction activities to meet the performance period established for each phase.

The period between completion of Phase 1 and issuance of the Phase 2 NTP is intended to accommodate the long-lead time associated with the roof access hatches and is not part of the Phase 2 performance period.

Phase 2 – Roof Access Hatch Work: The roof access hatches are anticipated to require approximately eight (8) to nine (9) weeks for fabrication and/or delivery. After the required hatch materials are received and the Contracting Officer issues the Phase 2 NTP, the Contractor must complete Phase 2 within thirty (30) calendar days from the effective date of the Phase 2 NTP, unless otherwise modified in writing by the Contracting Officer.

Phase 1 – Roof Work: The Contractor must complete Phase 1 within thirty (30) calendar days from the effective date of the Phase 1 NTP, unless otherwise modified in writing by the Contracting Officer.

The work will be performed in two (2) phases under separate Notices to Proceed (NTPs) issued by the Contracting Officer.

12.0 CLARIFICATION OF CONTRACTOR AND FAA RESPONSIBILITIES

The Contractor’s responsibility is focused on:

• Complete removal and replacement of the Cab Roof roofing/waterproofing system.

• Complete removal and replacement of the Catwalk Roof roofing/waterproofing system.

• Complete removal and replacement of the Cab Roof access hatch.

• Complete removal and replacement of the Catwalk access hatch.

• Approved Catwalk hatch and ladder modifications.

• Correction of roof drainage and ponding conditions within the defined work areas.

• Watertight treatment of roof penetrations and interfaces.

• Flashing and waterproofing.

• Protection of existing FAA equipment.

• Daily cleanup and restoration of operational areas.

The Contractor is not expected to independently perform FAA technical work associated with mission-critical antennas, air terminals, communications equipment, or other operational FAA systems.

Where such FAA technical work is necessary to allow the Contractor to perform the roofing work, the COR will coordinate with SSC technicians and the appropriate FAA personnel.

Existing facility conditions discovered outside the defined project scope must be reported to the COR.

The Contractor must not treat unforeseen or unrelated existing deficiencies as an open-ended

Contractor repair responsibility and must not proceed with additional out-of-scope work without written authorization.

13.0 PROJECT COMPLETION

Upon completion, the Contractor must provide a complete, functional, safe, corrosion-resistant, and watertight installation meeting the requirements of this SOW and the approved contract documents.

The final installation must provide proper drainage, eliminate roof-related water-intrusion pathways included within the defined scope, provide safe hatch access, and maintain the operational integrity of the ITO Air Traffic Control Tower.

Pictures

Pictures

Photo # 1

Roof Membrane (White Surface), Roof Drain (Bottom Left), Flashing / Reinforced Patches, Pipe

Penetration (Center with Cone Shape), Cable / Conduit (Running Horizontally), Equipment

Base (Top Center)

Photo # 2

Parapet Wall (Background – Curved Wall), Vent

Photo # 3

Roof Cab /Access Hatch (Center), Hatch Curb (Base of Hatch), Ladder / Guardrail (Right Side), Vent, Roof Drain (Right Background), Parapet Wall (Background), Parapet Antennas (Top of

Wall)

Photo # 4

Roof Cab Walkway (Center Path), Access Hatch Opening (Bottom Center), Guardrails (Left

Side), Safety Rail / Ladder Guard (Bottom Left – Yellow), Cab Wall (Right Side –

Glass/Structure), Cable / Conduit (Across Walkway)

Photo # 5

Existing Catwalk ladder to be rotated and adjacent wall to be demolished.

Photo # 6

Cab Roof Area (Cabling & Antennas), Roof Membrane (White Surface), Roof Drain(Center-Left), Cables / Conduits (Across Roof), Junction Box / Electrical Box (Right Side), Cab Wall (Right –

Glass Cab Corner / Walkway & Exterior Area, Cab Wall Base & Flashing (Bottom Left), Roof

Penetration / Small Drain or Anchor (Center Platform)

END OF STATEMENT OF WORK