(P09) Final SOW Chiller Plant Roof Replacement 2022_01_Rev1.docx

STATEMENT OF WORK

Project # 528A8-22-815 Replace Cooling Towers Replace Chiller Plant Roof System

INTRODUCTION

Contract in progress to replace the Cooling Tower atop the Chiller Plant, Building 54 (Roof Area 62), located at the Stratton VA Medical Center, Albany, New York. The existing roof system is saturated and was scheduled to be replaced after the new cooling towers were installed. However, the system is in such a state of failure, the leaking of this system has caused problems to recently installed equipment that now needs to be replaced. It is now imperative that the roof system be replaced. Since time is critical, modification to the existing contract is preferred rather than solicitating for bids.

The work includes, but not limited to the following: provide all equipment, tools, labor and support services for removal of the existing roof systems of Roof Area 62 Chiller Plant. Existing roof areas are described as follows:

Roof Area 62 – Chiller Plant (Bldg. 54) Roof Existing Composition – Tremco Burmastic 200-Gravel

· Base rigid insulation, 4½:

• Metal

Roof area is a rectangle measuring 68’-1” by 101’-4” (6,899 square feet).

The project includes, but not limited to, all work including construction administration, demolition, installation restoration of the roof area as follows:

ROOF AREA 62 – CHILLER PLANT (BUILDING 54)

New Roof Composition

· Gravel surface & flood coat

· Cold process built-up roof, 3-ply

· Tapered polyisocyanurate insulation (4½ at edges & high points and 1½” at roof drains

· Base polyisocyanurate insulation, 4”

· Vapor retarder. 1-ply

· Concrete, 2½”

· Metal deck, 1½” Miscellaneous Project Requirements:

1. The Contractor shall factor into his base bid for the project, a preconstruction meeting that addresses the following issues related to the roofing system;

a. Meet with VA Personnel; roofing materials manufacturer’s representative; roofing Installer, including project foremen.

b. Review methods and procedures related to preparation, including membrane roofing system manufacturer’s written instructions.

c. Review roof drainage during each stage of roofing and review roof drain plugging and plug removal procedures.

d. Review and finalize construction schedule and verify availability of materials, Installer’s personnel, equipment and facilities needed to make progress and avoid delays.

e. Review base flashings, special roofing details, drainage, penetrations and equipment curbs.

f. Review existing conditions that may require notification of VA before proceeding.

2. The Contractor shall provide all required and ancillary equipment necessary to perform the work including, but not limited to, access platforms, personnel/material lifts etc. All access equipment, safety personnel, operating personnel and procedures shall be in full compliance with OSHA regulations. Personal Protection Equipment (PPE) required at all times while working on the Medical Center’s grounds.

3. The Contractor shall review existing conditions and address site constraints, existing surfaces, etc. and make any necessary changes (subject to VA COR approval) to meet project requirements.

4. Work shall be coordinated, planned, scheduled and accomplished in such a manner that activities of the Medical Center are minimally impacted. All functions of the Medical Center are to remain in service during this project.

5. Work shall comply with all Medical Center requirements for dust, noise, odor and infection control. Dust and odors WILL NOT be permitted to enter the building at any time. The uncontrolled entry of dust or odors into the medical building at any time during this project could result in a stoppage of work being ordered. Any stoppages resulting from uncontrolled dust or odors are the responsibility of the Contractor and are not reimbursable under this contract. The contractor shall be responsible for the control and mitigation of odors, dust and infection. As part of the submitted technical proposal for this solicitation, the contractor shall submit a mitigation plan for preventing odors, dust and infection from entering any intake air vents within 100 feet of the described work zones listed above.

6. Any damage caused by the Contractor’s or their subcontractor’s activities in performing the work under this contract will be the responsibility of the Contractor to repair. The Contractor will bear all costs associated with repairing damages and these costs shall not be reimbursable by the VA under this or any other agreement. This includes, but not limited to, damages resulting from work activities, equipment activities and improper storage of supplies, materials or equipment.

7. If questions regarding the general and specific work areas exist, it shall be the responsibility of the Contractor to verify exact work areas with the VA COR. No increase in contract cost or time will be granted by the VA for misinterpretation/misunderstanding of work areas.

8. Material Safety Data Sheets (MSDS) covering all chemicals and materials used or encountered during this project shall be submitted to the VA for approval BEFORE purchase.

Low volatile organic compound (VOC) materials shall be used in this project. Additionally, chemicals containing isocyanates, asbestos and/or lead are not permitted for use on VA projects.

9. All roofing area estimates (square footage estimates) are given for informational purposes only.

10. Contractors shall follow additional requirements per VA and CDC guidelines as follows:

a. All employees must have a face covering on while at the medical center, (except break areas).

b. All employees must follow social distancing protocols by maintaining 6 feet away anyone while unmasked.

c. All employees must be screened prior to the workday and be wearing a face mask upon entering the facilities.

d. If an employee is feeling ill they must stay home.

e. All employees will minimize transiting through the medical center and stay in their work areas to the maximum extent practical.

f. Because sharing of tools could result in inadvertent exposure between workers, it is highly recommended that all employees practice good hand hygiene by washing their hands and using hand sanitizer.

11. All new contractor’s employers must obtain an identification badge for work on VA property.

a. Each contractor and subcontractor employee will need to attend a brief Safety and Infection and Control orientation lasting approximately 35 minutes. These sessions are held on Wednesday mornings with limited seating so arrangements must be made through the Safety Office to have all employees indoctrinated.

b. Upon completion of the training session, the contractor’s employees will be assigned a time to get their ID from the VA police.

GENERAL DESCRIPTION OF WORK TO BE PERFORMED FOR ROOFS:

· The roofing system shall be provided from a single manufacturer.

· Salient characteristics of the system and work to be accomplished are:

· Replace existing roof drains (bowls included) sigh Zurn (or equivalent) cast bols and cast drain screens.

· Roofing system to be installed shall have all components from the same manufacturer.

· Prime concrete deck with quick-drying water-based primer where required.

· Install fully adhered tapered layer ISO insulation using solvent free moisture curing roof deck adhesive with high elastomeric and adhesive in compliance with the roofing system’s manufacturer’s requirements.

· Provide 20 year warranty to include 4 scheduled quality assurance inspections in years 2, 5, 10 and 15 by manufacturers’ authorized factory representatives.

· Disassembly, removal, reinstallation and re-certification of existing portable safety rail systems will be included. The VA’s COR will direct temporary storage location.

RELATED DOCUMENTS

A. Contract Drawings and Specifications to replace the Chiller Plant Cooling Towers (Project #528A8-19-807) apply to this Section and amended as follows:

1) Specification 07 01 50.19 Preparation for Re-Roofing

2) Specification 07 51 13.13 Built-Up Asphalt Roofing, Cold Applied

3) Specification 07 71 00 Roofing Specialties

B. Additional Supplemental Details and Plans.

1) Expansion Joint Detail A at Boiler Room (Existing conditions)

2) Expansion Joint Detail B at Boiler Room (Existing conditions)

3) Roof Drain with Gravel Guard

The Period of Performance for this project is 180 days after the Notice to Proceed.