Attachment 1 Statement of Work.pdf

United States Department of Agriculture Agricultural Research Service

STATEMENT OF WORK

Building 2-3 Roof Replacement North Central Soil Conservation Research Laboratory (NCSCRL) USDA-ARS, Morris, MN

DATE: December 19, 2025

Table of Contents

Attachment 1 – Scope of Work Description

Attachment 2 – Project Specifications

01 32 00 Construction Progress Documentation

01 33 00 Submittal Procedures

01 50 00 Temporary Facilities and Controls

01 73 00 Execution

01 77 00 Closeout Procedures

01 78 23 Operation and Maintenance

07 53 23 Ehtylene-Propylene-Diene-Monomer (EPDM)

Attachment 3 – Photographs

Attachment 4 – Miscellaneous Forms

Material Approval Submittal Form

Schedule of Material Submittals

Recently Replaced Component Form

AD-700 Form

Attachment 5 – Project Drawings

O-1 Index of Drawings

2-1 Site Plan

3-4 Roof Plan and Details

4-2 Sections and Elevations

5-8 Exterior Details

7-4 Roof Framing Plan

Attachment 1:

Scope of Work Description

Building 2-3 Roof Replacement

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Scope of Work Description

1. Project Location: Building 2-3 USDA-ARS-North Central Soil Conservation Research Laboratory (NCSCRL) 803 Iowa Avenue Morris, MN

2. Midwest Area Engineer: Kurt R. Duggins

(309) 236-1038 Kurt.Duggins@usda.gov

3. Interested parties are strongly encouraged to visit the site of the proposed work and review the existing conditions there 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. Failure to visit the site will not disqualify those submitting a proposal. However, change order requests for items that could have been reasonably ascertainable from a site visit (and included in a proposal) will be reviewed by the CO and evaluated accordingly.

4. For bidding, offerors shall assume existing roof construction, generally, consists of a rubber membrane, coverboard, Styrofoam insulation, substrate board, approximately ½” particle board, over a metal roof deck. Photos of the roof are in Attachment 3. The existing roof membrane was installed 25-30 years ago. Contractor shall assume that the thickness of existing roof insulation meets the thickness that required was required by the State of Minnesota building and energy codes at that time.

5. The scope of the project shall be, generally, the removal of the existing roofing system at Building 2-3 and replacement with new in accordance with this Statement of Work and FAR Solicitation and Contract clauses that are identified in the complete Solicitation package. This Statement of Work (SOW) shall consist of this “Scope of Work Description”, Project Specifications, Attachments, General Notes and Requirements, Photographs along with roof plan showing equipment layout and existing drawings of Buildings 2 and 3. The roof replacement shall be a complete, properly functioning installation to provide a weather tight roofing system, shall be performed in a manner to obtain the manufacturer’s roof warranty, and shall include, but not limited to:

A. Dust containment shall be provided while project is underway. See paragraph 13 of this work description for submission of a dust mitigation and containment plan.

B. Complete demolition of the existing roofing system including the removal of entire roofing system down to the metal deck (existing rubber membrane, coverboard, insulation, substrate board, particle board and associated flashing-coping-fascia installations, trim pieces, accessories, and miscellaneous installations). For bidding purposes, assume metal deck will not require removal and replacement.

• Contractor shall conduct a “pre-demolition meeting” at the job site prior to commencement of demolition. Scheduling of this meeting shall be coordinated with Government’s representative and shall be scheduled to mailto:Kurt.Duggins@usda.gov

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allow attendance by Government’s representative. Meeting shall review demolition tasks and requirements. Contractor shall provide written detailed meeting minutes of this meeting to the Government project team. Minutes shall capture what was discussed, questions raised, answers provided, and other topics of discussion.

• Contractor shall be responsible for hauling away, directing waste to recycle, and legally disposing of remaining removed components and materials. See Project Specifications for additional information on requirements for directing waste to recycle.

C. Preparation of the substrate for the new roofing system and components. Roof deck shall be left in a condition that will allow for the new roofing system installation in accordance with manufacturer’s recommendations. Preparation of the substrate shall be performed in a manner to obtain manufacturer’s warranty; shall include all components in accordance with roofing manufacturer’s written installation details, requirements, and recommendations; and shall be in accordance with the requirements indicated in the Project Specifications.

D. Furnish and install new EPDM roofing, substrate board, vapor barrier, roof insulation, coverboard, walkways, flashing-coping installations, roofing trim, walkways, and accessories for a complete, manufacturer warranted, properly functioning, weather tight roofing installation. New roofing system shall be performed in a manner to obtain manufacturer’s warranty; shall be in accordance with roofing manufacturer’s written installation details, requirements, and recommendations, and in accordance with the requirements indicated in the Project Specifications.

E. Replacement of roofing coping-flashing installations in their entirety. New coping-flashing installations shall be performed in manner to obtain manufacturer’s warranty and in accordance with the requirements indicated in the Project Specifications.

• Field fabricated roof copings will not be allowed.

• Flashing must meet FM ratings.

• Existing fascia installation around edge of roof shall be removed and replaced with new coping and wood blocking installation. New coping and wood blocking shall be installed in manner to accommodate new roofing installation and as needed for code compliance.

• Building 2-3 and Growth Chamber 48 (Penthouse) abutment along the southside of the roof. (see Photo 7). Contractor shall provide new flashing installations along Growth Chamber 48 and shall trim (cut back) exterior wall panels as needed for Growth Chamber 48 to accommodate new roofing installation.

F. Furnishing and application of sealant at dissimilar material intersections to meet manufacturer’s warranty requirements and to provide a weather-tight seal. Sealant shall be 100% compatible with new roofing system and shall be type recommended by roofing system manufacturer; basis of design for sealant: “Chemlink M-1” sealant. Primary roof drainage currently consists of three (3) existing roof drain bowl assemblies. Cast iron bowls are to be protected in place and insulation tapered to provide positive drainage of roof structure.

G. Secondary drainage: Reuse existing roof scuppers. Three (3) scuppers exist along the southern perimeter and one (1) on the southwest corner of the roof.

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H. Removal and replacement of all existing vent pipe flashing assemblies with new.

New vent pipe flashing assembly shall match existing in type and size. New flashing assemblies shall be installed in accordance with manufacturer’s written instructions and in manner to obtain roofing manufacturer’s warranty. See Attachment 3 for photos of existing vents.

• For bidding purposes, Contractor shall assume flashing assemblies of fourteen (14) vent pipes of varying sizes will be replaced at the main roof.

• Contractor shall modify and extend existing vent piping to accommodate new roofing installation including insulation thickness and to provide code compliant clearance above finished roof.

I. Modification of existing equipment curbs for HVAC units, exhaust fans, associated exhaust stacks, and relief vent as needed to accommodate new roofing installation and to provide code compliant clearance above new roof.

• Contractor shall remove and replace wood blocking at each equipment curb to accommodate new roofing installation and to provide code compliant clearance above new roof. New wood shall be dimension lumber, Douglas Fir or Approved Equal. Blocking shall be solidly anchored with appropriate hardware designed for the application.

J. Contractor shall protect roof mounted HVAC unit in place prior to installation of new roof and modification of equipment curbs. If new roof structure will require height adjustment to the HVAC unit, Contractor shall disconnect, remove, and re-install roof mounted unit to accommodate new roofing installation and for modification of equipment curbs. All mechanical and electrical work shall be in accordance with building codes currently in force at the facility. This effort shall include, but not limited to:

• HVAC-1 (Sterling Rooftop Unit on northwest side of roof):

Mechanical: If required, recover refrigerant unit prior to removal.

Disconnect existing refrigerant piping from unit; modify and extend piping to re-connect to re-installed unit. New refrigerant piping shall match existing in size and type. Restore any pipe insulation on the refrigerant piping. Re-install recovered refrigerant to manufacturer recommend levels at re-installed unit. Start-up unit and confirm proper operation with Owner.

Electrical: Disconnect conduit and wiring of power circuit from unit.

Modify and extend circuiting to re-connect unit. Extend circuiting with 1-1/4” conduit with 3#4 and 1#8 Grd. Disconnect conduit and wiring of any control interlocks (assume one set of ¾” conduit with control wiring); Modify and extend conduit/ wiring runs to re-connect to re-installed unit. New conduit and wiring shall match existing.

Contractor shall provide all new pipe and conduit supports.

K. Penthouse had a portion of the flashing and roof replaced around 2023-2024. Match new flashing to the recently replaced flashing to provide uniform appearance. See Attachment 3 for Photos.

6. Scans of original design drawings for Building 2-3 (dated 1958) are provided in the project’s solicitation package. The Contractor shall use the existing drawings to assist in determining lengths / quantities for bidding purposes and as reference / resource in

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developing their bid / proposal. The Contractor shall confirm all existing conditions, dimensions, etc. prior to proceeding with any project activities. Note that roof openings on original drawings do not correspond to existing vent and HVAC layouts.

7. After project award, the Contractor shall confirm all existing conditions and dimensions prior to proceeding with any project activities and identify all existing conditions that may impact the work and alert the CO and EPM immediately if conditions are discovered that differ from the SOW. This must include verification of new roof insulation thickness in relation to existing flashing elevations and other rooftop elements. Contractor shall point out discrepancies between work identified in this SOW and actual field-verified conditions--if they exist, prior to performing work. Items not identified in SOW may be treated as unforeseen conditions and priced in accordance with standard FAR contract clauses. Coordinate with location for laydown and staging areas.

8. Photographs of the existing installations are provided in the project’s solicitation package.

The Contractor may use the photographs as a reference / resource in developing their bid / proposal.

9. Period of performance shall be as indicated in the Contract Documents and begins after Notice to Proceed is issued by CO.

10. Basis-of-design products are indicated in this SOW to convey a specified standard of quality and salient characteristics desired but are not to be considered a single- source specification. Contractor-proposed equals will be considered.

A. The Contractor must compare and validate that quality and salient characteristics are equal and approve the proposed equal products prior to submission for Government review and approval. Additional work required to incorporate Contractor-proposed equals shall be at the Contractor’s expense.

B. Owner will review all Contractor-proposed equal equipment, materials, manufacturers, or installation. It shall be the Contractor’s burden to furnish all documentation and / or samples to show equality with specified items. Owner’s decision on equality is final. Manufacturers / products that are submitted as “Approved Equal” are reviewed during the shop drawing process, not during bidding.

11. Submittals/product data / shop drawings shall be submitted as indicated in the Project Specifications. Submittals shall be reviewed for general conformance with the Contract Documents. Markings for comments and approval of the submittals by USDA shall not be construed as releasing the Contractor from compliance with the specified requirements.

A. Use ARS Material submittal/transmittal form included with this SOW for each submittal.

B. All submittals shall be distributed to and reviewed by the Government prior to commencing work at the site. Purchase of materials prior to submittal approvals are at the Contractor’s risk.

C. Submittals are required for each product used, as well as for various testing requirements. See Project Specifications for additional information.

D. See Project Specifications for requirements on documenting Contractor’s effort in diverting waste to recycle.

12. See Project Specifications for requirements on construction progress documentation including, but not limited to: daily reports, construction schedule(s), etc.

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A. Daily reports documenting construction activities shall include workers present, weather conditions, differing site conditions encountered, etc. Photographs of construction activities and conditions shall be taken daily and shall be submitted with daily reports. Daily reports shall be submitted on daily basis to project personnel as indicated in Project Specifications.

13. The Contractor shall furnish all labor, materials, equipment, supplies, transportation, utilities, supervision, *safety equipment, and incidentals for all elements of the work to provide a complete and properly functioning installation in accordance with this Statement of Work. The installation shall be ready for use by Final Completion date.

* Note: Contractor is solely responsible for safety measures and conformance to applicable requirements in accordance with FAR clauses referenced in Solicitation package.

• Contractor shall provide all means and methods to protect the facility and its installations from all project activities, including protecting the facility from environmental elements as the improvements are completed.

• The Contractor shall submit a detailed plan for dust mitigation and containment to the Government for review prior to starting any on-site project activities. See Project Specifications for additional information on requirements for submittals.

14. Contractor shall coordinate all work activities with the Owner prior to beginning any work.

All work shall be scheduled in a manner such that ongoing research is not jeopardized, and facility’s ongoing day-to day operations are not affected negatively, including air quality.

• Project shall be left broom-clean at the end of each workday.

• Contractor shall coordinate access to all areas with the designated USDA staff.

• During pre-construction meeting, Contractor shall verify all parking, security, and health requirements with the USDA staff.

• Coordinate with location for laydown and staging areas.

15. Applicable Codes and Standards:

• Current Minnesota State Building Codes, including Minnesota Minimum

Insulation Requirements for Low-Slope Commercial Roofing Climate Zone for Morris, MN.

• All current Morris, MN codes.

• Most recent Sheet Metal and Air Conditioning Contractor’s National

Association (SMACNA) Technical Standards.

• Most recent National Electrical Code (NEC).

• Factory Mutual (FM)

16. General Notes and Requirements A. General Notes:

1. The furnishing and installation of all improvements indicated shall be complete in every respect, properly operating and ready for use. All work shall be coordinated and scheduled to avoid disrupting and jeopardizing ongoing research. Coordinate access to space with COR or Location Coordinator designated by CO.

2. The performance of renovations and improvements shall be coordinated and scheduled to avoid disrupting and jeopardizing ongoing research.

a. Contractor shall coordinate with COR or Location Coordinator

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designated by CO any orderly shutdown of scientific equipment, machines and computer equipment as needed for the performance of the contracted work.

b. Contractor shall coordinate with COR or Location Coordinator designated by CO any moving of scientific equipment, machines and computer equipment as needed for the performance of the contracted work.

3. When renovations and improvements are performed within an Owner-occupied space; adequate protection of sensitive equipment, machines and computers shall be implemented.

4. Contractor shall utilize appropriate personal protection equipment (PPE) during the performance of the Work.

5. New and renovated installations shall be labeled in accordance with ANSI standards.

6. Contractor shall provide final cleaning of project area, see specifications for additional information. Final cleaning shall be to a “broom swept” quality.

B. Standard Requirements – Miscellaneous Installations (if applicable):

1. Where strut channel is installed, strut channel shall be galvanized type that is sized appropriately for the application. Protective cap on each end of strut channel run shall be included in the installation.

2. Where new penetration or opening of a wall, ceiling or floor occurs during the performance of renovation and/or improvement; the penetration/opening shall be closed and sealed using material and in manner to restore originally intended fire rating (i.e. opening shall be fire caulked).

C. Standard Requirements – Demolition:

1. When demolished material is accumulated during the performance of renovations and improvements; demolished material shall be removed and legally disposed. See specifications for additional information regarding diverting project waste to recycle.

2. Where existing installation becomes abandoned (i.e. no longer used) during the performance of a renovation and/or improvement and this existing installation is readily accessible (i.e. exposed installation or above accessible suspended ceiling); the existing installation shall be removed.

3. Removal of existing installation(s) shall include the removal of associated mounting hardware and patching holes from hardware removal.