B08_Attachment_2_SOW_CERC_PUF_Roof_Repair.docx

United States Department of the Interior

U. S. GEOLOGICAL SURVEY

Columbia Environmental Research Center (CERC) 4200 New Haven Road Columbia, Missouri 65201

STATEMENT OF WORK

CERC PUF ROOF REPAIR

I. GENERAL INFORMATION

a. INTRODUCTION. The Department of the Interior (DOI), U.S. Geological Survey (USGS), Columbia Environmental Research Center (CERC) 4200 New Haven Road, Columbia, MO 65202 has a requirement for roof repairs on the polyurethane foam (PUF) roof installed on the A3 Main Building.

b. BACKGROUND. The A3 Main Building at the Columbia Environmental Research Building is a 34,019 square foot research laboratory building that houses several research laboratories, office space, and a 6,000 square foot research wet laboratory. The area that shall be repaired under this order consists of approximately 42,200 square foot (3920.5 sq/m) of polyurethane foam (PUF) encapsulated roof. The PUF was installed in 2006 and an acrylic elastomeric coating was applied with granules. In April 2023, hail damage occurred to the roof necessitating repair. On the roof there are nineteen fume hood blowers with exhaust stacks, a rooftop air handling unit with associated air duct, several condensing units, and various appurtenances. It is incumbent on the contractor to verify all pertinent measurements and preconstruction conditions. Existing material is White-Knight Plus, Garland company.

c. DEFINITION/APPLICABLE DOCUMENTS.

i. Attachment 3 Existing Site Pictures

d. SCOPE. The contractor shall provide all materials, labor, equipment, travel and supervision necessary to repair the PUF roof which include but are not limited to

i. Task 1: Prepare roof for new protective coating

ii. Task 2: Install new Aliphatic Urethane roof protective coating with a minimum 15-year warranty for product and labor. The new coating shall, at a minimum, consist of:

1. First Base Coat: 15 dry mils, allowed to fully cure before subsequent additional coating.

2. Second Base Coat: 15 dry mils, applied after complete cure of first base coat.

3. Topcoat: 18 dry mils, applied after complete cure of second base coat.

II. WORK REQUIREMENTS

a. TECHNICAL REQUIREMENTS

i. Task 1: The intent of this project is to repair and protect the A3 Building’s PUF roof system by installing a new durable surface coating. The contractor shall prepare the PUF roof surface for the installation of a new liquid membrane.

1. Roof preparation and repair:

a. Inspect the roof for general conditions.

b. The contractor shall prepare the roof for recoating by thoroughly cleaning all the PUF roof surfaces.

c. The contractor shall use a compatible, biodegradable cleaning solution in preparation for repairs and application of coating.

d. Remove all loose dirt and foreign debris from the roof’s surface. The contractor shall remove all deteriorated, blistered, or delaminated foam insulation and fill in any low spots occurring as a result of removal work to create a smooth, even surface for application of new roof coating.

e. Apply primer to roof area to meet manufacturer guidelines.

f. Clean and seal all parapet walls, gutters, and coping caps.

g. Seal all watertight fasteners, pipes, drains, vents, joints, and penetrations where water could enter the building.

h. Repair existing roof membrane as necessary to provide a sound substrate for the liquid membrane.

ii. Task 2: Install protective coating:

1. The contractor shall perform all work in accordance with NRCA Roofing and Waterproofing Manual and product manufacturer. The contractor shall obtain all components of the coating system from a single manufacturer. Secondary products that are required shall be recommended and approved by the coating manufacturer. The contractor shall not begin coating installation until all surface preparations have been completed.

a. The contractor shall perform work only when environmental conditions (temperature and humidity) are within the limits recommended by the product manufacturer.

b. The contractor shall not expose materials vulnerable to water or sun damage in quantities greater than can be waterproofed during the same day.

c. When applying materials with spray equipment, the contractor shall take precautions to prevent overspray of coating materials and solvents. Damages caused from overspray to building surfaces, windows, flashings, vehicles, or other property shall be corrected by the contractor at no additional costs to the Government. Tarps, drop cloths, or other protections from applicators shall be used to the maximum extent practicable to protect from damages.

d. The contractor shall coordinate coating application with the USGS Technical Liaison at the site to ensure that application does not contaminate air intake systems.

e. The contractor shall protect completed sections of the roof from foot traffic as recommended by the manufacturer.

f. The contractor shall deliver and store all materials in manufacturer unopened packaging with labels intact until ready for use.

g. Store all materials in accordance with manufacturer’s recommendations. The Columbia Environmental Research Center does not have adequate warehousing or handling capabilities for contractor materials. The contractor may provide their own storage containers, project trailer, or other facility at the site at a location approved by the USGS Technical Liaison.

h. When applying materials near drains, vents, or other roof penetrations the contractor shall use extreme care to ensure that no coating or solvent materials enter these systems.

iii. Products.

1. The contractor shall inspect the current roof conditions and provide an aliphatic urethane roof coating material that is suitable for and compatible with the existing PUF roofing system. The existing coating system is an acrylic elastomeric type with topcoat granules. Contractors should verify the current coating’s content for compatibility with their proposed coating materials.

b. GENERAL REQUIREMENTS

i. Schedule.

1. Upon award and prior to the Government Contracting Officer’s “Notice to Proceed” the contractor shall submit the following:

a. List of proposed materials, manufacturers, and product data

b. Safety Data Sheets (SDS)

2. Within ten (10) calendar days after the notice to proceed is issued, the Contractor shall submit in writing to the USGS Technical Liaison a schedule of construction for the project. The schedule shall indicate the dates of the periods of time that the Contractor intends to be on site and permit status/requirements. The schedule shall indicate the dates that major components of the work will be accomplished. When preparing the schedule, the Contractor shall consider lead times for utility outages, permit requirements and material/ equipment procurement, and shall consider the permitted hours of work indicated in Time of Work Performance clause.

3. The Contractor shall notify the USGS Technical Liaison immediately if any anticipated on-site date is expected to change from the original schedule. The Contractor shall be responsible for determining the labor staffing levels needed to complete the project by the established delivery date.

4. A preconstruction conference will be conducted prior to the beginning of work to discuss on site conditions, project expectations, storage and staging areas, property protection, scheduling, and any other condition that may impact contractor workers, project progress, Government activities, and accessibility. After the preconstruction conference, contractor can begin work.

c. WARRANTY. New roof coating materials and installation shall be consistent with all manufacturer’s specifications and recommendations and provide a minimum of 15-year warranty.

d. The USGS Technical Liaison shall be present at the project to inspect the quality of all work being performed. The work performed will be on a building roof and requires all contractor personnel to always follow OSHA and local safety regulations while working aloft.

e. The contractor shall meet daily with the Facility Manager or USGS Technical Liaison prior to the start of spraying operations to discuss wind speed and direction and threat to adjacent parking lots and surrounding buildings. Ultimately, the contractor is responsible for correcting at their own costs damages that incur to surrounding areas caused by overspray.

f. The contractor may place a temporary construction trailer or other employee comfort facilities at the site at a location approved by the Facility Manager or USGS Technical Liaison for use during construction.

g. Installation of specified work shall be performed in accordance with all applicable codes and standards including, but not limited to SPI Bulletin U-118, Uniform Building Code and Standards, Uniform Mechanical Code and its appendices, Uniform Fire Code and Standards, Uniform Plumbing Code, Flammable and Combustible Liquids Code (NFPA-30), Standards for Fire Protection for Laboratories Using Chemicals (NFPA-45), National Fuel Gas Code (NFPA-54), National Electric Code (NFPA-70), Life Safety Code (NFPA-101), Uniform Federal Accessibility Standards (UFAS), The Manual on Uniform Traffic Control Devices.

h. The contractor shall be responsible for the construction site safety and security including the protection of personnel, vehicles, and other property as well as air intakes from overspray, fumes, and vehicle or generator exhausts.

i. The contractor shall be responsible for the removal and transportation of all construction debris and materials to be discarded from the worksite. The facility does not have adequate trash receptacles for such items. Should the contractor desire to place on site a dumpster to facilitate refuse removal a request shall be submitted to the Facility Manager or USGS Technical Liaison no less than 48 hours in advance of delivery. Location of a refuse container shall be coordinated with the Facility Manager or USGS Technical Liaison on site.

III. SUPPORTING INFORMATION.

a. GOVERNMENT FURNISHED PROPERTY (GFP): None.

b. SECURITY. Building access shall be coordinated with the Facility Manager or USGS Technical Liaison.

i. PROVIDED UPON AWARD

c. PLACE OF PERFORMANCE. USGS, Columbia Environmental Research Center (CERC), 4200 New Haven Road, Columbia, MO 65201

d. PERIOD OF PERFORMANCE. 60 days from NTP

e. SPECIAL CONSIDERATIONS

i. The CERC normal facility business hours are 7:00 AM to 4:30 PM, Monday thru Friday.

ii. Utility/Service Interruptions: The Facility Manager and USGS Technical Liaison shall be notified not less than 3 calendar days in advance of any interruptions of building utility/services. The contractor shall describe in writing the work to be done and the time and duration of the interruption. No work shall be done until approval is received from the USGS Technical Liaison.

iii. The contractor shall be responsible for complying with all National, Federal, State and local laws, codes and regulations in connection with the execution of the contract.

iv. Contractor is responsible for visiting the worksite to verify measurements and to ascertain the nature and location of the work to be performed and the general and local conditions which can affect the work or the cost thereof. Failure to do so will not relieve the contractor of his responsibility for estimating properly the difficulty or cost of successfully performing the work.

v. Occupancy: During construction the Government will occupy the existing facility. The contractor shall not restrict nearby pedestrian or vehicular traffic to this facility and shall coordinate construction with the Contracting Officer to minimize conflicts and to facilitate usage. The contractor shall perform the work so as not to interfere with ongoing operations.

vi. Any changes affecting the scope of work shall be originated from and approved by the Contracting Officer.

vii. All materials and workmanship shall be subject to the inspection and approval of the USGS Technical Liaison. All work unsatisfactorily performed shall be promptly corrected and made acceptable to the Government at no additional Cost.

viii. Final inspection and acceptance shall be performed with the contractor, on site by the USGS Technical Liaison upon completion of job performance.

ix. MATERIALS. The contractor shall furnish all supplies, materials, and equipment necessary for performance of the work included in this contract unless otherwise specified. Materials and supplies to be used shall be commercially available products of reputable manufacturers or suppliers and shall be of a quality to conform to applicable Federal Specifications.

x. SPECIFICATIONS. In any case of discrepancy in the specifications, the matter shall be immediately submitted to the Contracting Officer, without whose decision said discrepancy shall not be adjusted by the Contractor, save only at his own risk and expense. Any changes affecting the scope of the work shall originate from and be approved by the Contracting Officer.

xi. SCHEDULING CONTRACT WORK. The contractor shall make necessary arrangement with the Facility Manager and USGS Technical Liaison to perform the work and shall arrange and schedule his work so that the minimum amount of interference with government activities will result.

xii. USE OF BUILDING FACILITIES. The contractor may use utility services and toilet facilities of the building subject to approval of the Facility Manager.

xiii. CONDITIONS AFFECTING THE WORK. It will be the responsibility of the contractor to inspect the site, determine quality of work involved. Compare the specifications with the work to be done, and inform themselves as to all conditions, including other work, if any, being performed. Failure to do so will in no way relieve the successful contractor from the necessity of furnishing any materials or performing any work that may be required to carry out the contract in accordance with the true intent and meaning of the specifications without additional cost to the Government.

xiv. EMPLOYEES. The contractor shall be responsible at all times for the supervision and control of the employees that may be assigned to render services under the contract. Fully qualified work personnel shall be available for work on the date this purchase order begins and shall be maintained throughout the period of performance.

xv. LICENSES-PERMITS. The contractor shall, without additional expense to the Government, be responsible for obtaining any necessary licenses or permits, and for complying with any Federal, State, and Municipal laws, codes and regulations in connection with the execution of the work.

xvi. ACCIDENT PREVENTION AND FIRE HAZARDS. The contractor shall take all necessary precautions to prevent fires or injury to the public, building occupant(s), or damage to property of others during the performance of this contract. For the purpose of this contract, the public or building occupant shall include all persons not employed by the contractor or a subcontractor working under his/her direction. If welding is required, permission shall be obtained from the COTR.

xvii. INDEMNITY. The contractor shall confine all work on Government premises to areas authorized or approved by the Contracting Officer or COTR. The contractor shall save and keep harmless and indemnify the Government against any and all liability claims, and costs of whatsoever kind and nature of injury to or death of any person or persons and for loss or damage to any property (Government or otherwise) occurring in connection with or in any way incident to or arising out of the occupancy, use, service, operations, or performance of work in connection with this contract, resulting in whole or part from the negligent acts or omissions of the contractor.

xviii. GREEN ACQUISITIONS. The USGS is committed to promoting the natural environment and protecting the health and well-being of people. In the performance of work under this contract, the Contractor shall exert its best efforts to provide services in a manner that will promote the natural environment and protect health and well-being. Green purchasing or environmentally preferable contracting includes the initiatives described below:

1. Alternative Fuels and Vehicles are described at http://www.afdc.energy.gov/afdc/

2. Biobased Products are described at http://www.biopreferred.gov/

3. Energy efficient products are described at http://energystar.gov/products for Energy Star products and at http://www.eere.energy.gov/femp/procurement for FEMP designated products

4. Environmentally Preferable Computers are described at http://www.epeat.net

5. Significant New Alternatives Program (SNAP) are described at http://www.epa.gov/snap/overview-snap

6. The Comprehensive Procurement Guidelines promote the use of recovered and recycled products at http://www3.epa.gov/epawaste/conserve/tools/cpg/index.htm

7. Water efficient products and services are described at http://www3.epa.gov/watersense/about_us/what_is_ws.htm image1.png