Attachment B SOW - 3 pages.pdf

Scope of Work

Project Number: 437-23-125

Project Title: Replace Select Roofing

Description of Work: Construction work shall include, but shall not be limited to providing all labor, materials, deliveries, equipment, etc. necessary to complete Fargo VA Health Care System construction project 437-23-125: Select Roofing Replacement. All work shall be in accordance with Specifications, Contract Documents, Scope of Work (SOW), NFPA, local building codes, VA facility standards, and other applicable requirements.

1) Project Conditions

a) Period of Performance will be 538 days from receipt of the Notice to Proceed. Period of performance will start upon notice to proceed anticipated date June 10, 2024. Work will be allowed while temperatures remain in the working range of the manufacture’s recommendations.

b) Contractor shall provide a designated superintendent who has been trained in OSHA fall protection, in addition to OSHA 30 training with 10-hour re-cert every two years there- after. The Contractor shall have this person on-site while work is being performed. The Site Safety and Health Officer (SSHO) shall also be on-site while work is occurring. These positions may be combined and represented by the same individual.

c) Within 5 calendar days of task order NTP the Contractor shall provide a detailed schedule for approval by VA COR. The schedule will include a phasing plan that will layout a path of work to be completed in the 2024 calendar year and 2025 calendar year. Work will be allowed to be completed early but if it is stated to be completed in 2024 the VA will expect that work to be completed in the 2024 calendar year. Work will proceed as quickly as coordination can be made to accommodate access to the roof areas under construction and once materials are on-site.

d) Contractor will start on one of the following identified areas and will complete the identified areas before proceeding to the remainder of the project areas. Identified areas of need are (area #3, #7, #10) These areas will be expected to be completed in the 2024 season as they are areas of high need or had existing leak issues. The contractor will select the area that best works with the weather conditions, supplies available, and staffing availability to make the best progress with minimal delays. Upon completion of the identified areas the contractor may phase remaining construction at their discretion and will coordinate schedule and remaining phasing with VA COR.

e) Proceed with roofing work only when existing and forecasted weather conditions will permit a unit of work to be installed in accordance with manufacturer's recommendations and warranty requirements. Submittals for manufactures recommended installation methods will be provided per specification section along with accompanying components to included but not limited to the following: roofing materials, fasteners, sealants, adhesions materials, flashing, and installation method.

f) Do not apply roofing insulation or membrane to damp deck surface.

g) Do not expose materials subject to water or solar damage in quantities greater than can be weatherproofed during same day.

h) Upon completion of installation, and acceptance by the VA the Manufacturer will provide warranty for the newly installed roofing system. The finished roofing system shall be covered by a 15-year labor and materials warranty.

2) Pre-Installation Conference

a) Pre-Installation Roofing Conference: Convene a pre-roofing conference prior to scheduled commencement of EPDM roofing system demo/installation and associated work per specifications.

3) Delivery, Storage, and Handling

a) Deliver products to site with seals and labels intact, in manufacturer's original containers, dry and undamaged.

b) Store and handle roofing sheets in a dry, well-ventilated, weather-tight place to prevent moisture exposure. Store rolls of felt and other sheet materials on pallets or another raised surface. Stand all roll materials on end. Cover roll goods with a canvas tarpaulin or other breathable material (not polyethylene).

c) Do not leave unused materials on the roof overnight or when roofing work is not in progress unless protected from weather and other moisture sources.

d) Secure all material and equipment on the job site. If any material or equipment is stored on the roof, assure that the integrity of the deck is not compromised at any time. Damage to the deck caused by the Contractor's actions will be the sole responsibility of the Contractor, and the deck will be repaired or replaced at Contractor’s expense.

4) The major project work scope items shall include but not limited to the following:

a) The Contractor shall schedule all construction activities with a continuous flow of work without any significant periods of inactivity once construction has begun. Planned periods of inactivity should be limited to a maximum of five (5) consecutive working days and scheduled with the VA COR. Contractor shall be expected to accomplish some work after normal business hours. Demolition should occur only when new materials are on-site and ready for installation.

Activities with excessive noise or vibration, that are adjacent to patient areas, are to be coordinated with VA COR. Activities in these areas are subject to having work performed after 4:30pm, or on the weekend. (VA Operation times: 8:00am - 4:30pm, exclude federal holidays.)

b) To avoid unexpected material delivery delays all materials shall be on the job site or stored locally and readily available. A preparatory inspection may not be scheduled until the material is made available for inspection. No work shall be performed without a preparatory inspection.

c) The Contractor shall remove the ballast stones, filter fabric, covered insulation, existing membrane, flashing, and coping cap. The removal of the existing roofing system, insulation, flashings, cleaning of joints at flashing and related trims shall be completely removed to the original decking and disposed of per specifications. The removal of the existing roof system shall be coordinated with the installation of the new roof to prevent exposure to weather conditions and potential water infiltration into the building. Contractor shall maintain a safe and secure work site, including securing the roof in a watertight condition at the end of each day.

d) Installation of new adhered roof system with base and tapered insulation, cover board, EPDM roofing, flashings components, fasteners and adhesives, and other required components. Roofing contractor will supply a drainage/tapered insulation plan for each replacement area, for review and approval by VA COR, prior to start of demolition. This plan will include insulation depths, roof drainage lines, primary roof drain locations, and overflow drain locations, for each designated replacement area. This document shall also identify all necessary staging and demolition areas, and any removal equipment. (Equipment and staging examples: cranes, chutes, dumpsters, safety fencing, and personnel and equipment access routes.)

e) The Contractor shall install new 24-gauge pre-finished metal counter flashing and coping cap on parapet walls. Any wet or deteriorated blocking shall also be replaced. New blocking will be required at the prior rock-stop type edges to account for the increase insulation depths.

Contractor shall follow drawing details and procedures identified in this specification for counter flashings, copings, drains/overflows, and related roof top equipment.

f) All holes/roof openings shall be properly covered at the end of each day to prevent water leaking into the building or damage to the existing roof. All trash and debris shall be cleaned off the roof at the end of each day.

g) The Contractor shall remove and dispose of all construction debris produced by the project, including trash blown off the roof. The Contractor is responsible for any damage caused by the construction, including impacts to landscaping, equipment, utilities, and any building or site damage.

5) Construction details and requirements:

a) All materials and installations shall be in accordance with the manufacturer's recommendations and installation instructions.

b) Proceed with roofing work only when existing and forecasted weather conditions will permit a unit of work to be installed in accordance with manufacturer's recommendations.

c) Do not apply roofing insulation or membrane to damp deck surface.

d) Do not expose materials subject to water or solar damage in quantities greater than can be weatherproofed during same day.

e) Contractor shall test all drains before re-roofing begins and after, and immediately notify the VA COR if any drains are clogged. Contractor shall not proceed with work until drainage is fixed. Adjust drain heights as required to account for new insulation thickness. Replace all roof drains and drain screen baskets. Contractor is responsible for ensuring all drains are in working condition once roof is complete.

f) Contractor shall insure a minimum slope of ¼” per 12”, including any and all crickets placed around equipment, and as required to maintain the minimum continuous slope to the discharge points. Contractor is solely responsible to ensure positive drainage is accomplished at each roof area. Ponding will be cause for rejection of the roofing replacement area.

g) The Contractor shall provide roof walking pads from roof access locations to all roof mounted equipment. Factory formed recycled rubber, with a slip-resisting surface texture, nonporous, manufactured specifically for adhering to modified bituminous membrane roofing, to serve as a protection course for foot traffic.

h) Contractor shall remove and store rooftop equipment prior to roofing demo using industry protocol or as manufacturer recommends, safely store for re-installation with new roofing system. Contractor will be responsible for ensuring all temporarily removed roof top equipment is operational after it is re-installed. If there are any concerns on equipment prior to removal, notify COR and they can coordinate VA HVAC staff to check existing conditions prior to removal.

6) Contract Completion:

a) The Contractor shall provide the following closeout documentation:

i) Warranties provided by manufacture with certificate of acceptance

ii) Preventative Maintenance plan

iii) Operation and Maintenance Manuals

iv) New Roof As-Builts Drawings that include drain slopes, roof drains, and drain basins, overflows, stair locations, mechanical equipment locations, walk pads, stair landing pads.

v) The Contractor shall provide manufacturer’s installation certifications for the EPDM roof system.