20250814 - SoW - 6619 Roof and HVAC_REV4.docx

STATEMENT OF WORK

CONSTRUCTION SERVICES

ROOF REPLACEMENT AND HVAC ASSESSMENT

August 14, 2025

INTRODUCTION

Building 6619 is an approximately 25,300 ft2 single story structure constructed in 2001 and currently houses FGGM’s Directorate of Emergency Services (DES). The Police department occupies the West wing of the building, and the Fire Department occupies the East wing. An engineering Study performed by Dhillon Engineering in 2024 identified several areas of concern with the space. The roof is showing signs of disrepair likely due to the age of the facility, but there are also indicators of possible improper construction. In addition, the building’s tenants report that, during extreme temperature swings, the building’s current HVAC system and components struggle to meet demand, creating a difficult and uncomfortable working environment for staff.

DESCRIPTION

Building 6619 is comprised of one large main building split into two semi-detached wings and an attached garage located to the Southeast. It has a 4:12 stand seam metal roof deck sitting on a steel galvanized deck covering most of the building, with batt insulation below within the ceiling plenum space. Between the two wings of the building there is a low-sloped membrane roof covering the exterior entry from the North which serves the police side of the building to the West and the fire department side of the building to the East.

ROOF:

Observations made inside of the interior ceiling plenum spaces indicated that batt insulation was installed on the underside of the roof, which is not a standard installation practice. Stormwater leaking through the roof has damaged some of this insulation and subsequently the ceiling tiles below. There are areas of the roof while the original coating appears to be failing. At the center of the building, where the low sloped membrane roof is, there are leaks due to membrane damage and there are indications that the metal flashing and sealant were not installed correctly. Finally, there is a gap between the wall and the roof structure in the recreation room of the fire station.

HVAC:

One air handling unit primarily serves the entire building. It contains two separate coils - a direct-expansion cooling coil and hot water heating coil - and is located in the building’s mechanical room. There are two additional gas fired condensing boilers and associated equipment in the mechanical room for heating hot water. The AHU is a Variable Air Volume type connecting to several VAV boxes for zone temperature control. VAV boxes are equipped with hot water reheating coils.

Rooms 202, 248, and a room adjacent to the mechanical room have ceiling mounted fan coil units with outdoor condensing units to provide additional cooling to these spaces. Also, Control Room 204 has an additional wall mounted split system indoor unit and outdoor condensing unit for supplementary cooling.

Hydronic unit heaters are installed in the fire pump room, mechanical room, fire-hose equipment room, and medical storage room of the building to provide heating to those spaces. The electrical room is served by an electrical unit heater. Seven hot water convectors are provided to heat the entry way vestibules. Six Infrared heaters are installed in the apparatus bays.

The outdoor condensing unit, a 20-ton Trane Model RAUJC40EBC0300D000020C, was replaced in 2025.

QUALITY ASSURANCE

· Roof Contractor Qualifications:

· The Contractor shall demonstrate in their proposals that they possess the technical ability and the organization/staffing required for repair roofs of the types and quantities covered by this document.

· In their proposal, the Contractor shall include documentation verifying they have at least five (5) years of continuous experience immediately prior to this solicitation in the replacement of commercial roofs as described in this document. The experience must have been within the past five (5) years.

· HVAC Contractor Qualifications:

· The Contractor shall demonstrate in their proposals that they possess the technical ability and the organization/staffing required for repair roofs of the types and quantities covered by this document.

· In their proposal, the Contractor shall include documentation verifying they have at least three (3) years of continuous experience immediately prior to this solicitation in the replacement of commercial roofs as described in this document. The experience must have been within the past three (3) years.

· TAB Assessment Specialist Qualifications:

· Certified by Associated Air Balance Council. (AABC) (AABC MN-1) or National Environmental Balancing Bureau (NEBB) (NEBB PROCEDURAL STANDARDS).

· TAB Specialist: An independent entity meeting qualifications to perform TAB work.

· TAB Field Supervisor: Employee of the TAB specialist and certified by AABC or NEBB.

· TAB Technician: Employee of the TAB specialist and certified by AABC or NEBB as a TAB technician.

· All recommendations and suggested practices contained in the TAB procedural standards are considered mandatory.

· Instrumentation Type, Quantity, Accuracy, and Calibration: Comply with requirements in ASHRAE 111, Section 4, “Instrumentation”

· ASHRAE Compliance: Applicable requirements in ASHRAE 62.1, Section 7.2.2

· “Air Balancing”

· ASHRAE/IESNA Compliance: Applicable requirements in ASHRAE/IESNA 90.1, Section 6.7.2.3 – “System Balancing”

SCOPE

The objective of this task is to fully address current issues with Building 6619’s roof and with the existing HVAC system in order to provide both the Fire and Police staff stationed in the building with a safe, comfortable working environment.

Prior to commencing its work, the Contractor shall Schedule a Pre-Work Conference with the Directorate of Public Works. The Directorate and Contractor shall:

· Review the Contractor’s proposal;

· Assess any deficiencies in record documentation;

· Coordinate with the building tenants to ensure access to the building;

· Review the Contractor’s schedule for CLIN 0001 and CLIN 0002;

· Review all security requirements for the grounds and the facility.

CLIN 0001 – Roof Replacement Following the Pre-Work Conference, the Roof Contractor shall provide DPW a schedule indicating when all materials (including long lead items) are to be delivered, and when they shalll be installed. The schedule shall clearly delineate a duration during which any Building areas will not be accessible to building staff. Contractor shall give DPW fourteen (14) days’ notice before it commences its work.

The Contractor is responsible for the field verification of all existing conditions, utilities, dimensions, and clearances impacted by the work. The Contractor shall notify the DPW of any deficiencies or different conditions encountered.

The Contractor shall fully replace the building’s roof. The work shall include:

· Demolition of existing Standing Seam Metal and EPDM flat roofs down to the structural steel decking. Inspection of the structural steel decking and repairs as needed.

· Furnishing a new standing seam roofing system with a finish and watertight warranty.

· Furnishing a new flat EPDM roofing system with a finish and watertight warranty.

· Full replacement of metal gutters and downspouts. Color shall match new standing seam roof panels exactly.

· Full replacement of roof soffit and underlying fascia.

· Full demolition and replacement of the building’s lightning protection system with subsequent testing and system verification/commissioning.

· Painting exterior surfaces (soffit, fascia, support elements, doors, etc) to match the color of the new standing seam roof panels exactly.

· As-built drawings following construction and acceptance.

The contractor shall perform its work in such a manner so as to minimize disturbances to the Department of Emergency Services, who will continue to occupy the space throughout the duration. Note that any antenna or equipment disconnects shall be coordinated with the Department of Emergency Services well in advance. Any equipment that is disconnected must be reconnected at the end of each workday.

CLIN 0002 – Replacement of HVAC System Components and TAB/Commissioning Following the Pre-Work Conference, the HVAC Contractor shall provide DPW a schedule indicating when all materials (including long lead items) are to be delivered, and when they will be installed. The schedule shall clearly delineate a duration during which HVAC systems will not be operational, and location(s) within the building likely to be affected. The Contractor shall give DPW fourteen (14) days’ notice before it commences any work.

The Contractor is responsible for the field verification of all existing conditions, utilities, dimensions, and clearances impacted by the work. The Contractor shall notify the DPW of any deficiencies or different conditions encountered.

The Contractor shall replace the building’s HVAC system and its components following an initial inspection and analysis by a Professional Mechanical Engineer licensed in the State of Maryland. The work shall include:

· Initial Inspection and Analysis:

· The Contractor/Engineer shall inspect all existing HVAC equipment and document any deficiencies encountered.

· The Contractor/Engineer shall also perform an analysis of the design/system and evaluate whether the existing equipment is sufficient to maintain set temperature within the building. Load calculations shall be performed, and zoning/grouping shall be evaluated. Analysis shall be performed by a Mechanical HVAC Engineer licensed in the State of Maryland.

· The Contractor/Engineer shall document its analysis and develop recommendations for repair/replacement in a report to be furnished to DPW for their review and comment.

· The Contractor shall schedule a meeting with DPW within fourteen (14) days of submitting its report. The Contractor, Engineer, DPW, and any other relevant stakeholders shall discuss the recommendations of the report and clarify any discrepancies found between it and the as-built drawings.

· Following this meeting, DPW shall give the Contractor Notice to Proceed as to Construction of specific recommendations (if not all) found in the Initial Inspection Analysis and Report.

· The Contractor shall demolish equipment associated with the building’s existing HVAC system as necessary (and as determined by DPW following a review and discussion of the Initial Inspection Analysis Report) and replace with new equipment.

· TAB Assessment and Commissioning:

· The work includes duct air leakage testing and testing (DALT), adjusting, and balancing (TAB) of new HVAC air distribution systems including equipment and performance data, ducts, and piping which are located within, on, under, between, and adjacent to buildings, including records of existing conditions.

· Conduct DALT and TAB of the indicated existing systems and equipment and submit the specified DALT and TAB reports for approval. Conduct DALT testing in compliance with the requirements specified in SMACNA 1972 CD, except as supplemented and modified by this section. Conduct DALT and TAB work in accordance with the requirements of this UFGS 23 05 93 “Testing, Adjusting, and Balancing for HVAC”.

· The Contractor shall submit a Report following its TAB Assessment for review by the DPW. The report shall provide a complete record of the original design and final test data. The report shall highlight any discrepancies between the test data and the design specifications, along with reasons for those discrepancies. To facilitate future performance checks and adjustments, appropriate records shall be given on all damper positions, equipment capacities, control types and locations, control settings and operating logic, airflow rates, static pressures, fan speeds, and horsepower.

· Schedule a follow-up meeting with DPW following a 14-calendar day long review period of the Report. The Contractor, TAB Specialist, DPW, and other stakeholders shall discuss the findings of the report, clarify any issues noted, and discuss any remaining work to be performed by the Contractor so as to ensure that the renovated HVAC system is functioning adequately, and per the design requirements set forth by the Engineer in the Initial Inspection and Analysis. Note: any follow-on work as noted in the TAB Assessment and Report shall be done at the Contractor’s own expense, and shall not be considered as additional, or out-of-scope, work.

· As-built drawings following construction and acceptance.

The contractor shall perform its work is such a manner so as to minimize disturbances to the Department of Emergency Services, who will continue to occupy the space throughout the duration. Note that any service shutoff shall be coordinated with the Department of Emergency Services well in advance (a minimum of fourteen days). If strictly necessary, and at DPW’s discretion, the Contractor shall furnish temporary measures to restore cooling and heating to the building’s interior.

TIME FRAMES AND DELIVERABLES

· Time Frames

· The project performance period will be completed in 12 months.

· Deliverables

· Proposal with Qualifications

· Pre-Work Conference Meeting Agenda and Minutes

· Construction Schedule for CLIN 0001

· Construction Schedule for CLIN 0002

· Roof Warranty Contract

· Material Submittals

· HVAC Inspection, Analysis, and Recommendations Report

· HVAC Inspection, Analysis, and Recommendations Report Review Meeting Agenda and Minutes

· TAB Report

· TAB Report Review Meeting Agenda and Minutes

· As-Built Drawings

GENERAL REQUIREMENTS

· The Contractor shall conduct all efforts in such a matter to reduce mission activity disruption. Any action that will change the primary function or performance of any building system will need to be performed during time that will least likely to disrupt mission activities.

· The Contractor shall store all supplies and equipment on the project site so as to preclude mechanical and weather damage and maintain site in a neat and orderly manner.

· The contractor shall obtain a Fort Meade DPW Excavation Permit prior to construction.

· The Contractor shall follow all OSHA and Trench Safety rules and regulations to protect personnel during construction.

· Security Requirements: Contractor personnel performing under this contract on the FGGM premises must be citizens of the United States, either native-born or naturalized. Cases of dual or multiple citizenships will be reviewed by security personnel. The Contractor must pass the National Crime Information Center (NCIC) Interstate Identification Index (III) background investigation to gain access on the installation. All NCIC III investigations will be performed at the Government’s expense.

· AT Level I training. All Contractor employees, to include subcontractor employees, requiring access Army installations, facilities and controlled access areas shall complete AT Level I awareness training within 30 calendar days after contract start date or effective date of incorporation of this requirement into the contract, whichever is applicable. The Contractor shall submit certificates of completion for each affected contractor employee and subcontractor employee, to the COR or to the contracting officer, if a COR is not assigned, within 05 calendar days after completion of training by all employees and subcontractor personnel. AT level I awareness training is available at the following website: http://jko.jten.mil

· iWATCH Training. The Contractor and all associated sub‐contractors shall brief all employees on the local iWATCH program (training standards provided by the requiring activity ATO). This locally developed training will be used to inform employees of the types of behavior to watch for and instruct employees to report suspicious activity to the COR. This training shall be completed within 30 calendar days of contract award and within 05 calendar days of new employees commencing performance with the results reported to the COR NLT 30 calendar days after contract award.

· OPSEC Training. Per AR 530‐1 Operations Security, the contractor employees must complete Level I OPSEC Awareness training. New employees must be trained within 30 calendar NT of their reporting for duty and annually thereafter.

· Access and General Protection/Security Policy and Procedures: The Contractor and all associated sub-contractors employees shall comply with applicable installation, facility and area commander installation/facility access and local security policies and procedures (provided by government representative). The Contractor shall also provide all information required for background checks to meet installation access requirements to be accomplished by installation Provost Marshal Office, Director of Emergency Services or Security Office. Contractor workforce must comply with all personal identity verification requirements as directed by DOD, HQDA and/or local policy. In addition to the changes otherwise authorized by the changes clause of this contract, should the Force Protection Condition (FPCON) at any individual facility or installation change, the Government may require changes in contractor security matters or processes.

· Hours of Operation: The work to be performed under this contract shall be performed during normal Government Operating Days, Monday through Friday except for Federal holidays, between the hours of 0700 to 1630 local time. If services are scheduled by the Contractor to be performed on a regular federal holiday (see below), or one designated by Presidential proclamation, rescheduling shall be at the discretion of the COR.

APPLICABLE PUBLICATIONS

· The Contractor must abide by all applicable regulations, publications, manuals, and local policies and procedures. Any applicable publications are to be procured and maintained at Contractor’s expense. These may include, but are not limited to:

EM 385-1-1 U.S. Army Corps of Engineers Safety and Health Requirements Manual Unified Facilities Criteria:

UFC 1-200-01 DoD Building Code (General Building Requirements) UFC 3-201-01-2018 Civil Engineering Unified Facilities Guide Specifications (UFGS) including, but not limited to:

UFGS 07 22 00 Roof and Deck Insulation UFGS 07 41 13 Metal Roof Panels UFGS 07 60 00 Flashing and Sheet Metal UFGS 07 61 14.00 20 Steel Standing Seam Roofing UFGS 07 61 15.00 20 Aluminum Standing Seam Roofing UFGS 07 92 00 Joint Sealants UFGS 23 05 15 Common Piping for HVAC UFGS 23 05 93 Testing, Adjusting, and Balancing for HVAC UFGS 23 07 00 Thermal Insulation for Mechanical Systems UFGS 23 08 00 Commissioning of Mechanical and Plumbing Systems UFGS 23 09 00 Instrumentation and Control for HVAC UFGS 23 09 13 Instrumentation and Control Devices for HVAC UFGS 23 21 23 Hydronic Pumps UFGS 23 30 00 HVAC Air Distribution UFGS 23 52 00 Heating Boilers

· The Contractor shall comply with all applicable Federal, State, local, and Army regulations governing environmental control. The Contractor shall obtain and provide copies of any required licenses and permits, as necessary, to comply with applicable Federal, State, local or municipal laws, codes or regulations during the performance of this work.

· The Contractor shall ensure that their work is conducted in accordance with and in support of the goals of the FGGM Environmental Management MS. The FGGM EMS goals are the following: (1) reduce solid and hazardous waste generation, (2) recycle solid waste generated to the maximum extent practicable, and (3) reduce energy and water consumption.

ATTACHMENTS

· Drawings (PDF), “FT. MEADE EMERGENCY SERVICES CENTER – Issued for Construction” (USACE 2000).

· “Environmental Health Facility Assessment – Building 6619” (AECOM 2020).

· “Study Report – Building 6619, 4419, and 8452” (USACE/Dhillon Engineering, Inc 2024).

End of Statement of Work