Attachment 1 Statement of Work.docx

UNITED STATES DEPARTMENT OF AGRICULTURE

BELTSVILLE AGRICULTURAL RESEARCH CENTER

FACILITIES SERVICE

ENGINEERING AND CONSTRUCTION BRANCH

BUILDING 426A, BARC-EAST

10300 BALTIMORE AVENUE

BELTSVILLE, MARYLAND 20705-2350

STATEMENT OF WORK AND SPECIFICATION

TO

REPLACE THE EXISTING LEXAN THERMOCLEAR POLYCARBONATE GLAZING PANEL SCREENS OF THE ROOF AT RANGE #1 SCREEN HOUSE #10 ROOF

BELTSVILLE AGRICULTURAL RESEARCH CENTER

BELTSVILLE, MARYLAND

Rev. #1 October 2021

STATEMENT OF WORK

PROJECT NUMBER:

PROJECT LOCATION: Beltsville Agricultural Research Center (BARC), Range #1, Screen House #10, Beltsville, Maryland

DESCRIPTION OF WORK: The contractor shall provide all labor, materials, supplies, specialized equipment/tools, transportation and supervision to replace the existing 8mm Lexan Thermoclear Polycarbonate Glazing Panel Screens of the roof at range #1 Screen House #10 Roof. A Construction Project Schedule shall be provided by the contractor prior to work start up.

In accordance with this contract, the contractor shall provide all labor, material, equipment, and transportation to include all accessories and incidentals necessary to complete this job to Government requirements. Should the contractor encounter any material that in his judgment may contain asbestos, he must stop work immediately and notify the Contracting Officer (CO) within 24 hours.

Prior to commencing work, the contractor is required to obtain Construction Authorization, vehicle permits, and identification badges. These can be obtained from the Engineering and Construction Branch Office, Building 426A, BARC-East, Beltsville, Maryland Facilities Services Unit. VEHICLE PERMITS AND IDENTIFICATION BADGES SHALL BE RETURNED TO THE GOVERNMENT PRIOR TO THE FINAL PAYMENT BEING ISSUED.

NOTE: THE CONTRACTOR SHALL NOTIFY THE GOVERNMENT TECHNICAL REPRESENTATIVE ON 301-504-8434 at least 24 HOURS BEFORE ANY WORK IS SCHEDULED TO START. All contractor's work shall be monitored and inspected by BARC personnel and done in accordance with the Statement Of Work and attached drawings, specifications, graphics, BARC Special Conditions, and performed in accordance with all applicable local building codes, Construction Standards and Codes, Americans with Disabilities Act, local and State traffic codes, Maryland Highway Specifications, Maryland Department of Environment, Maryland Department of the Environment Regulations concerning the Clean Water Act and the Environmental Protection Agency regulations. In the event of a conflict, the most stringent regulation shall prevail.

Scope of Work:

The contractor shall perform the following work, but not limited to:

A. To replace the existing 8mm Lexan Polycarbonate Glazing Panel Screens of the roof at range #1 Screen house #10 roof.

1. Mobilization:

- Mobilize all necessary personnel, specialized tools and equipment, approved materials, dumpsters, safety items and all other necessities to initiate a work start up after receiving the notice to proceed.

- Contractor shall stage ladders and scaffolding to allow free access to each entrance to the building at all times. All necessary precautions shall be taken to provide safe passage at the point of entrance/exit (contractor may be required to construct temporary safety passage to catch debris that could fall on individuals entering and exiting the building).

2. Demolition:

- Contractor shall remove existing 8mm Lexan Polycarbonate Glazing Panel Screens of the roof at range #1 Screen House #10 Roof.

- Special attention shall be considered when removing roofing system around the gutters, downspouts and all other roof penetrations. Please note that the gutters and downspouts shall not be removed permanently.

- The contractor shall remove and dispose of Government property, all items indicated as to be removed. Such items become the property of the contractor and shall be loaded, transported per applicable DOT regulations, and disposed of at approved landfills.

- Contractor shall protect exposed roof from damage caused by rain or water infiltration during all phases of construction. Precautions shall be taken to assure that no damage is caused as a result of water damage to ceilings, floors, walls or equipment. Any such damage shall be the responsibility of the contractor to repair or replace at no cost to the Government.

- Contractor shall prepare the existing roof super structure to receive the Double Wall Twin-Wall Clear Lexan Polycarbonate Panel Screens

3. Inspect/Repair:

- Inspect all metal roof truss members, metal purlins, ridge extrusion, ridge cap and soffit supporting structures for rusting and/or deteriorated areas. Mark up and notifying the Contracting Officer’s Representative (COR) for directions.

- Provide unit cost for metal roof truss members, metal purlins, ridge extrusion, ridge cap and soffit supporting structures for during the Solicitation/Bidding Process Pre-Contract Award.

- All cracks, breaks, separations and structural defects, structural failures, damaged and vents shall be repaired before installing new roofing system and soffits.

- If any rusted metal is present, after proper surface preparation is given, apply a minimum two (2) coats of anti-corrosive ASTEC B-16-71 Metal Primer. If the metal is required to be replace mark up and notifying the Contracting Officer’s Representative (COR) for directions.

- Care shall be taken to clean all removed and loose material from stripped roof deck, under roof deck where new material is installed and from soffit area before new construction is preformed.

4. Installation:

- Provide and install all new (40) forty 18’-0” x 6’-0” 8mm thick Double Wall Twin-Wall Clear Lexan Polycarbonate Panel. The work shall comply with the installation requirement established by the manufacturer’s requirements, multi-wall polycarbonate installation instructions, palram-thermaglas-technical-and-installation and industry standards.

-The contractor shall pre-drill holes in Lexan Thermoclear Polycarbonate Panels with a high-speed steel or carbide tipped twist drill bit properly sized. Then fastened to structure with a self-tapping hex head with stainless steel screw 25mm (1”) umbrella neoprene washer #14 x 1-1/2” at 12” on center in both directions. A ThermaGlas special adhesive-backed neoprene spacer washe Spacer shall be used between Lexan Thermoclear Polycarbonate Panels and the structure.

- The contractor shall seal all Lexan Thermoclear Polycarbonate Panels joints with V—Tech VT-214 Polycarbonate Sealant or approved equal by the COR.

-The contractor at the top of the Lexan Thermoclear Polycarbonate Panels at ridge level install ThermaGlas Solid Tape the full wide of the panel and install ThermaGlas Permeable Tap the full length of the bottom of panels. To allow for proper drainage of condensate. At the bottom of each panel ThermaGlas Aluminum bottom Channel or other protective Aluminum “U” end cap with a weep hole drilled in at 12” on center.

-The contractor shall utilize the existing end caps and intermediate snap caps or trim to connect Lexan Thermoclear Polycarbonate Panels per manufacture’s installation Instructions..

- The contractor shall install foamed weather seal under the full length of the ridge under the ridge cap on top surface of the top ends of the Lexan Thermoclear Polycarbonate Panels per manufacture’s installation Instructions..

- Contractor shall contact the COR when the roof is ready to receive the new roof system to be installed.

- Attention shall be given to incorporating positive drainage into the roofing assembly to ensure avoidance of pounding. Positive drainage shall be provided to all (2) edges that have gutters installed.

-The contractor shall provide boom lifts, scaffolding, ladders, scaffolding systems, etc. that is required to facilitate a safe and productive working environment.

The Minimum criteria as listed below for Lexan Polycarbonate Panels, ThermaGlas Polycarbonate Panels or approved equal by the COR.

- 8mm Thickness for double wall

- 80% light Transmission.

- Ten Year Limited Warranty against discoloration, loss of light transmission and/or loss of strength due to weathering.

- It features a proprietary surface treatment which provides resistance against degradation caused by UV radiation in sunlight.

- Lexan Thermoclear Polycarbonate Sheet has a continuous-use temperature of 212°F*. At the other end of the scale the minimum continuous- use temperature has been set at -40°F. Using Lexan Thermoclear Polycarbonate Sheet at lower temperatures is possible since the embrittlement temperature can be as low as -80°F.

Lexan Multiwall Polycarbonate Properties

Clear 112 Light Transmission %

Clear 112 Solar transmission %

Bronze standard 5109 Light transmission %

Opal 875074 Light transmission %

-The contractor shall supply and install all required roofing materials and perform prep work required by the roofing manufacturer specifications so as to install the new roof.

-The contractor shall at all time supply and install a barrier between dissimilar metal materials that come in contact with one another. This material shall last as long as the life cycle of the metal that it is secured to.

5. Weather Limitations:

- Proceed with installation only when existing and forecasted weather conditions permit roofing system to be installed according to manufacturer’s written instructions and warranty requirements.

- If installed in near-freezing or sub-freezing temperatures, hot boxes shall be used on the rooftop to rotate adhesive cans and rolls of flashing.

- New roofing system shall be applied on a dry clean surface, meaning that all water and debris shall be removed from roof at least two (2) hours prior to application. Additionally, vacuuming and/or power plowing will help remove water or moisture from the roof surface.

6. Performance Requirements and Warranty:

- Provide installed roofing membrane and base flashings that remain watertight, do not permit the passage of water; and resist uplift pressures, thermally induced movement and exposure to weather without failure.

- Provide roofing materials that are compatible with one another under conditions of service and application required.

- Contractor shall provide a 10-year Material Warranty for Double Wall Twin-Wall Clear Lexan Polycarbonate Panels, 10-year limited warranty against UV degradation and a 1-year Labor Installation Warranty.

7. Delivery, Storage and Handling:

- Deliver roofing materials to Project site in original containers with seals unbroken and labeled with manufacture's name, product brand name and type date of manufacture and directions for storage.

- Store liquid materials in their original undamaged containers in a clean, dry, protected location and within the temperature range required by roofing system manufacturer.

- Protect stored liquid material from direct sunlight.

- Handle and store roofing materials and place equipment in a manner to avoid damage or deflection of roof deck. Any damage to roof structure due to mishandling of roofing materials or equipment will be the sole responsibility of the contractor to repair at no cost to the Government.

8. Submittals:

- See Submittals instructions below under General section.

- Provide the following submittals:

- Samples for verification: (3) 24”x24” Double Wall Twin-Wall Clear Lexan Polycarbonate pieces of material for all other roof system layer materials and reasonable size for hardware used to apply new system.

- Installer Certificates: Signed by roofing manufacturer certifying that Installer is approved, authorized or licensed by manufacturer to install roofing system.

- Manufacturer’s technical data sheets for all materials used on this project.

- Manufacturer's Warranties for applied roofing system.

- Installers Safety Plan.

-COVID Pandemic Plan and Wellness Plan in accordance to the CDC and the USDA.

General:

A. Demolition: The contractor shall remove and dispose of Government property, all items indicated as TO BE REMOVED. Such items become the property of the contractor and shall be loaded, transported per applicable DOT regulations, and disposed at approved landfills.

B. Field Verification: The contractor is responsible for field verification of all measurements, quantities and field conditions prior to commencing work.

C. Staging: All equipment, supplies and materials for this contract shall be stored in the work area at the contractor’s risk. The buildings and grounds at BARC will be secured at the end of each day by BARC Security. The security at BARC is not responsible for any of the contractor's stored material, equipment, either inside or outside the building at any time.

A. Construction Project Schedule: See contract, FAR 52.236-15 Schedules for Construction Contracts. The Contractor will not begin actual work until the construction project schedule has been approved by the Contracting Officer. The Contractor shall submit one electronic copy of the updated construction project schedule with each progress payment request.

B. Contract Inspector’s Daily Report: Contractor shall submit to the Contracting Officer a daily report listing the names of all those present on the job site each day, along with their Job Classification, hours of work and a brief description of the work performed by each on that day. The Contract Inspector’s Daily Report is to be submitted at the beginning of work each day for the previous day’s work and shall be maintained throughout the term of the contract.

C. Formal Meetings: Any meeting (deemed formal by the contractor, the COR, or the Contracting Officer) will have the minutes of said meeting prepared by the contractor (and a copy provided to the Contracting Officer). The minutes will include: Date, Name of Attendees (with contact info), Old Business, and New Business subjects (or narratives). Regardless of who requests a meeting (the COR or the Contractor or the Contracting Officer) the contractor may be required to provided hard copy pictures of the issues to be discussed. Each issue will be linked to a contract specification section number and/or subject area by page number. Issues discussed will also include an action/completion date.

D. Safety Submittals: Contractor shall submit a "site specific" Safety Plan to the Contracting Officer that describes how the contractor is to comply with all applicable OSHA standards and NFPA codes pertaining to construction work to include, but not limited to: General Safety and Health Provisions, Occupational Health and Environmental Controls, Personal Protective and Life Saving Equipment, Hand and Power Tools, Welding and Cutting, Electrical, Scaffolds, Fall Protection, Excavations, Demolition, Stairways and Ladders, Toxic and Hazardous Substances, Confined Space Entry, Lockout/Tagout, Respiratory Protection, Hearing Protection. Safety Plan shall identify Contractor and sub-contractor employees who are authorized/qualified to perform electrical work. No work shall proceed until written approval of the Safety Plan by the Contracting Officer. Safety Plan shall describe how the Contractor and/or sub-contractors are to secure equipment, supplies, tools, and chemical products. Contractor and/or sub-contractor equipment, supplies, tools, and chemical products are to be under the control of the Contractor at all times, equipment, supplies tools, and chemical products found not to be under the control of the Contractor or sub-contractor are subject to confiscation and will be reported to the Contracting Officer. Note see the enclosed sample of a Site-Specific Safety Plan.

E. The Contractor shall inspect the entire construction site daily, including days without construction work if there are NFPA 101 Life Safety Code deficiencies existing while construction work is shut down, the results of that inspection shall be documented on the attachment “DAILY INSPECTION FORM”, and the form is to be signed and submitted to the Contracting Officer.

F. Contractor shall provide continuous monitoring for noise, dust, chemical vapor generation, volatile organic compounds, and vibration. At no time shall noise exposure to any ARS staff exceed 75 dB. Contractor shall provide to the Contracting Officer a written weekly update of the all test results and also for proposed work for the subsequent two weeks (a two week “look-ahead”)involving any construction activity that will produce loud noises, heavy vibrations, strong smells, or significant dust inside ARS staff occupied space.

G. Contractor and sub-contractors shall notify in writing the Contracting Officer at least one week prior to executing high risk work (this may be included in the two week “look-ahead” update). High risk work includes, but is not limited to, tasks requiring Lockout/Tag Out, live electrical work, hot work, work at heights, trenching/ shoring, crane operations, and confined space entry. Contractor’s Competent Person shall provide the Contracting Officer written weekly documented safety inspection results.

H. Contractor shall provide to the Contracting Officer for approval, copies of Safety Data Sheets (SDS) for EVERY CHEMICAL WITHOUT EXCEPTION prior to bringing such chemical on the work site.

I. Hot and Grinding Work Permits: The Contractor will not be permitted to work without this permit when performing Hot and Grinding Work.

J. Scheduling: The total contract period shall be 65 calendar days from the point of contract award. A period of 5 calendar days shall be allotted for the submittal, 5 calendar days for review and re-submit process. A period of 10 days shall be allotted for ordering materials. The work on-site shall be limited to sixty-five (65) calendar days. The final inspection shall be scheduled a maximum of 60 calendar days from point of contract award, leaving 5 days for punch list remedies. The contractor shall submit a copy of his proposed schedule to the CO for approval. Please note that the shipping time line is 10 delivery time after approved submittals. The actual construction work period shall be 45 calendar days deducted from the 65 days minus 5 days to deliver submittals, five 5 days for submittal review leaving 10 days for ordering and delivery of the materials.

K. Submittals: The contractor shall submit the manufacturer’s technical data sheets and shop drawings for the items listed in the Submittal Registry 5 calendar days from the point of contract award. Each submittal shall be attached to a Submittal Transmittal Form (enclosed), signed by the Contractor, and delivered to the Contracting Officer. Provide 6 copies of each material submittal.

L. Coordination: The contractor shall coordinate with the COR, with adequate notice, all work which will require an inconvenience or work stoppage to Government personnel due to noise, dust, extreme temperatures or interruption in utilities.

M. Complete Work: It is the intent of this project to contract for a complete, functioning mechanical and or electrical system, finished in all respects, accomplished by mechanics skilled in the trades involved and performed in the highest standards of workmanship.

N. Manufacturer Warranty: Manufacturer shall warrant pipe and fittings for 2 years to be free of defects in materials or workmanship. Warranty shall cover labor and material costs of repairing and/or replacing defective materials and repairing any incidental damage caused by failure of the piping system do to defects in materials or workmanship. Warranty shall be in effect only upon submission by the contractor to the manufacturer valid pressure/leak test documentation indicating that the system was tested and passed the manufacturer’s pressure/leak test.

O. Contractor Guaranty and Warranty: All contracted work shall be guaranteed by the contractor for a period of two (2) year for labor from the date of final acceptance against defective materials, design and workmanship. The material shall be as specified in the manufactures specifications but at least one year. Upon receipt of notice from the Government of failure of part or parts of the guaranteed equipment during the warranty period, the affected part or parts shall be replaced within 48 hours with new parts by and at the expense of the contractor. ALL WARRANTIES SHALL BE TURNED OVER TO THE COR PRIOR TO FINAL INVOICING.