Performance Work Statement.docx

United States Department of Agriculture Agricultural Research Service

PERFORMANCE WORK STATEMENT

Insulate Potato Storage Barn Chapman, ME

Chapman Farm Potato Storage Barn 980 Carvell Road Chapman, ME

Prepared by Wayne Shekailo, Engineering Project Manager January 24, 2025

Version 2.8, Page -

Table of Contents

Performance Work Statement January 24, 2025 Insulate Potato Storage Barn Chapman, ME

1. OVERVIEW

USDA’s Genetic Improvements for Fruits and Vegetables Laboratory (GIFVL) at Presque Isle is a Substation of the Beltsville Agricultural Research Station, 10300 Baltimore Avenue, Beltsville, DM 20705. GIFVL grows their potato crop and maintains a potato storage barn at the Chapman Farm located at 980 Carvell Road, Chapman, ME 04757.

Research conducted at the farm examines ecologically based, biologically efficient, and economically profitable management systems of an agricultural commodity. Research activities include the development and testing of new potato varieties and investigations on the effects of cultural practices on potato growth, development, yield, and quality. To help with the problem of diseases of potatoes, scientists are investigating the molecular genetics of potato pathogens, developing new, faster methods to detect potato viruses in seed stock, and working to develop more disease-resistant potato varieties. Scientists also have investigated effects of soil amendments and crop rotation on soil properties and potato productivity and looking at how the use of manure and yard waste affects the soil.

Insulation is a key factor for a potato storage building, much more so than it is for general purpose buildings. The quality of the insulation will determine to a large extent how well a potato store performs. A well-sealed and insulated potato storage building will allow the crop to be kept at a stable temperature largely unaffected by diurnal (daily) variation in ambient conditions. It will help maintain a relative humidity of 90–100 per cent to minimize tuber weight loss; it will also allow crops to be stored free from condensation in changeable weather conditions.

Controlled ventilation allows crop respiration heat to be removed and a crop to be dried and cooled. Fans are best positioned to create a flow of air through the crop or, less efficiently, to form a rolling mass of air that flows over the stack of boxes and through the pallet slots (space ventilation).

Building leakage to wind-induced ventilation reduces the effectiveness of the storage, as it is likely to lead to loss of environmental control. Crop weight loss and possible condensation on the crop will result and ventilation or refrigeration running hours will increase, in order to cool the crop warmed by the leaking air.

It is estimated that eighteen (18) pallets of potatoes, with each pallet weighing 900 pounds, are contained in the building during the potato storage season.

2. PROJECT REQUIREMENTS:

2.1. POTATO STORAGE BUILDING (Building 1300B000003): The Potato Storage Building is a 40’x62’ (2,480 SF) metal barn, which is 14 ft high at the perimeter walls and 16 ft high at the ridge that was constructed in 1968. The building contains existing shelving, mechanical equipment, utilities and liner board along the interior surface of the perimeter walls. Cooling is provided by two (2) 7.5 hp refrigeration condensing units and four (4) 2-ton, 3-fan refrigeration evaporators; conditioned air is distributed by one (1) 2,000 CFM unit ventilator; ventilation is provided by one (1) 7,500 CFM mounted wall exhaust fan; and heating is provided by five (5) 208–240-volt, 5 KW electric heaters. All components of the HVAC systems have reached the end of their useful service life. Additional information regarding this building is contained in ATTACHMENT 3, dated August 5, 2024: Extracted Potato Storage Barn Pages from USDA BUILDER REPORT, dated August 31,2018. The Contractor shall furnish all engineering, labor, materials, and supplies required for the following tasks:

2.1.1. Reinsulate Existing Potato Storage Building

2.1.1.1 The Minimum Thermal Resistance (RSI): 6.1

2.1.1.2 The goal is to achieve an R-Value of 45-60 for the ceiling and an R-Value of 35-40 for the side walls.

2.1.1.3 Install a vapor barrier on the interior surface of the walls and ceiling.

2.1.1.4 It is permissible to remove the outer shell of the building to insulate the walls if desired by the Contractor.

2.1.1.5 There is no information available regarding existing roof insulation. It is permissible to use blown-in insulation at the ceiling if the designed R-Value is met.

2.2 UPGRADE THE HVAC SYSTEMS

2.2.1 During the potato storage period of September 1st to May 30th the minimum temperature must be maintained between 40 degrees Fahrenheit and 45 degrees Fahrenheit.

2.2.2 Contractor will be required to provide calculations for both the equipment and proposed insulation installations, stamped by a professional engineer licensed in the State of Maine, to determine the amount of heating and cooling required and the rationale for the equipment selection.

2.2.3 Stamped drawings are not required; shop drawings will show conformance to design calculations.

2.2.4 The existing HVAC systems are to remain operational until all components of the replacement system have been procured to allow for the shortest installation time possible.

2.2.5 The Contractor is responsible to provide temporary heating or cooling, if required, to maintain an interior temperature between 40 degrees Fahrenheit and 45 degrees Fahrenheit if potatoes are in storage. The project is being solicited as a Performance Work Statement; The Contractor is responsible to meet performance criteria and not specific tasks enumerated by the Government. The requirement is to provide the required temperature limits during the heating and cooling seasons; to meet this obligation the Contractor can elect to replace the existing equipment, like for like or they can propose alternate systems (split system heat pumps, centralized furnace and air conditioning. Etc.)

2.2.6 Remote controls for the cooling, temperature, and humidity of the space are not required.

2.2.7 Replace existing ventilation system as required to meet manufacturer’s requirements for new HVAC systems.

2.3 FARM EQUIPMENT STORAGE BUILDING (Building 130B000002): The Farm Equipment Storage Building is a 30’x100’ (3,000 SF) metal building which is 14 ft high at the perimeter walls and 16 ft high at the ridge that was constructed in 1987. The Contractor shall furnish all engineering, labor, materials, and supplies required to create a 1,200-SF insulated work room. Additional information regarding this building is contained in ATTACHMENT 4, dated August 5, 2024: Extracted Farm Equipment Storage Building Pages from USDA BUILDER REPORT, dated August 31,2018.

2.4 It is the Government’s intent to insulate the entire shop space; the new wall will have wall board installed floor to ceiling; the remaining three walls will have a durable wall finish installed to a height of 8 ft to protect the added insulation.

2.4.1 Construct a floor to ceiling insulated, demising wall approximately 40‘ south of the north perimeter wall of the farm equipment storage building.

2.4.2 The demising wall shall have one (1) 3’- 0’ x 6’- 8” paint grade solid core wood door with standard entry lock hardware.

2.4.3 The demising wall shall have 5/8” gypsum wallboard installed on both sides, wallboard to be finished to National Gypsum Level 4.

2.4.4 The room shall be insulated to ASHRAE 90.1 standards; Exterior and Demising Walls R-40, Ceilings/Roof R-60.

2.4.5 Insulation at non-demising perimeter walls shall be protected with finished 5/8” wallboard installed to 8’ above the finished floor.

2.4.6 Demising wall and perimeter walls shall be painted to a satin finish, doors and trim shall be painted to a gloss finish; primer and finish coats per manufacturer’s recommendations; and vinyl cove base. Colors to be selected by location.

2.4.7 Paint shall be Bio-Preferred (See SECTION 5 UTILIZATION OF BIO-BASED PRODUCTS)

2.4.8 One wall (back) is pushed off the foundation in the equipment storage space; provide alternate price to repair.

2.4.9 Provide alternate price to install unit heater in new equipment storage space.

3. SPECIFICATIONS

3.1. Division 1 USDA General Requirements are included in this project.

3.2. All work shall be completed in accordance with all local, state, federal codes and regulations. The work shall meet all manufacturer’s requirements and recommendations and shall be accomplished in a professional manner and in accordance with good workmanship and acceptable practice.

3.3. Contractor is responsible for inspecting the site and for determining the exact dimensions of the project.

3.4. Contractor shall obtain at own expense all permits, licenses, and inspections required by all local, state, and federal authorities.

3.5. Contractor’s working hours shall be scheduled through the Location Monitor to coincide with the normal working hours (7:30 am-4:30 pm) at the site. Should it be necessary to schedule working hours other than normal working hours, contractor shall arrange for access to the work area with the Location Monitor (LM) at the site at least three days prior to the need. Contractor shall notify and schedule utility outages at least 24 hours in advance.

4. REFERENCES

References may be obtained through internet searches.

2021 Unified Facilities Guide Specifications (UFGS) Division 06 Wood, Plastics, and Composites:

06 10 00 Change 2 11/18: Rough Carpentry 06 20 00 Change 2 11/18: Finish Carpentry Division 07 Thermal and Moisture Protection:

07 21 16 Change 4 08/18: Mineral Fiber Blanket Insulation 07 21 23 Change 4 08/18: Loose Fill Thermal Insulation 07 2 10.00 10 Change 1 02/20: Building Air Barrier System 07 27 36 Change 2 08/20: Spray Foam Air Barriers Division 08 Openings:

08 14 00 Change 1 08/18: Wood Doors 08 71 00 Change 3 08/20: Door Hardware Division 09 Finishes:

09 29 00 Change 4 02/20: Gypsum Board 09 90 00 02/21: Paints and Coatings Division 23 Heating, Ventilation and Air Conditioning:

23 03 00.00 20 Change 3 08/18: Basic Mechanical Materials and Methods 23 07 00 Change 7 05/20: Thermal Insulation for Mechanical Systems 23 09 13 Change 1 11/20: Instrumentation and Control for HVAC 23 30 00 05/20: HVAC Air Distribution 23 82 23.00 40 05/17: Unit Ventilators North American Insulation Manufacturer’s Association ASHRAE 90.1 Compliance for Metal Buildings ASHRAE Handbook – HVAC System Applications S01 HVAC System Analysis and Selection ASTM Standard Specifications for Mineral Finer Blanket, Loose-Fill and Spray Applied Insulation NAIMA 202-96 Standard for Flexible Fiberglass Insulation to be laminated for use in metal buildings.

The Gypsum Construction Handbook SMACNA: HVAC Duct Construction Standards

5. UTILIZATION OF BIO-BASED PRODUCTS

5.1. As required by the Farm Security and Rural Investment Act of 2002 and the Energy Policy Act of 2005 (7 U.S.C. 8102(c) (3)), the Contractor certifies, by signing this offer, that bio-based products (within categories of products listed by the United States Department of Agriculture in 7 CFR part 3201, subpart B) to be used or delivered in the performance of the contract, other than bio-based products that are not purchased by the Contractor as a direct result of this contract, will comply with the applicable specifications or other contractual requirements.

5.2. The contractor shall utilize products and material based on bio-based materials as applicable, (e.g. bio-based greases; bio-based hydraulic fluids, bio-based absorbents),to the maximum extent possible without jeopardizing the intended end use of detracting from the overall quality delivered to the end user. All supplies and materials shall be of a type and quality that conform to the applicable Federal Specifications and Standards. All supplies and materials to be used in the performance of work described herein are subject to the approval of the EPM. Products can be found at: https://www.biopreferred.gov .

6. SITE INSPECTION

6.1. Bidders are strongly encouraged to visit the site of the proposed work and review the existing conditions relating to construction and labor, and to be fully informed as to the facilities involved, and the difficulties and restrictions that may affect the performance of the Contract.

7. CONTRACT REQUIREMENTS

7.1. After contract award, all shop drawings, data sheets and specifications must be reviewed and approved by the Contracting Officer prior to the start of construction.

7.2. After contract award, the contractor shall submit project safety and quality control plans for review; no work shall be permitted on site until the Site-Specific Safety Plan and Quality Control Plan have been approved. The contractor shall maintain a safe work area around the site and clearly mark danger areas with cones and safety tape.

7.3. All unused and demolished materials shall be removed from the site by the contractor and shall be properly recycled or disposed.

7.4. The contractor will be responsible for replacing at their cost any property damaged at the site during the construction process.

8. PROJECT PROCUREMENT

8.1. Base Bid Potato Storage Building 1300B000003: Reinsulate Potato Storage Barn. Storage building temperatures shall be maintained as required during periods where potatoes are being stored.

8.2. Option 1 Potato Storage Building 1300B000003: Upgrade/Replace existing mechanical systems to maintain ideal temperatures for potato storage.

8.3. Option 2 Farm Equipment Storage Building 130B000002: Construct an insulated room in the equipment shed.

9. PROJECT COMPLETION

9.1. Upon completion of the project, contractor shall ensure proper performance and shall demonstrate the required performance to the LM and/or other owner representatives.

9.2. Contractor shall remove all excess materials, debris, and equipment from the site.

9.3. Provide Manufacturer warranties for all HVAC equipment.

9.4. Provide 0ne (1) year workmanship warranty for all installations.

9.5. Operation and Maintenance (O&M) manuals shall be collected and provided as an electronic submission at the end of the project.

9.6. Contractor shall provide training of the controls system to location personnel upon substantial completion.

9.7. Upon completion of all project requirements and inspections, submit Final Payment to the Contracting Officer Representative (COR) for review and recommendation.

10.0 PROJECT CONTACTS

11. ATTACHMENTS:

Attachment 1 - Aerial View Attachment 2 - USDA Section 01010 General Requirements Attachment 3 – Extracted Potato Storage Barn Pages from USDA BUILDER REPORT Attachment 4 - Extracted Farm Equipment Storage Building Pages from USDA BUILDER REPORT

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