DIVISION 02 • AIR SYSTEMS

HVAC SYSTEMS & CUSTOM DUCTWORK

Equipment, Distribution and Sheet-Metal Fabrication for Commercial, Industrial, Healthcare and Marine Ventilation Systems.

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HVAC & DUCTWORK CAPABILITIES

Air Handling & Ventilation

Air handlers, rooftop units, energy-recovery and make-up air units, fans and terminal equipment supplied and staged to your submittal and release schedule.

Custom Ductwork & Transitions

Rectangular, round and oval duct, square-to-round transitions, reducers, offsets, elbows, plenums, collars and access doors fabricated from galvanized, stainless or aluminum sheet.

Acoustic & Vibration Control

Acoustic duct lining, sound attenuators, vibration isolators, isolation hangers and flexible connectors to limit noise and equipment vibration transfer.

Field-Measured Retrofit Work

Duct sections built to field measurements for retrofit, tie-in and replacement scopes where fit-up tolerances are tight and outage windows are short.

WHAT WE SUPPORT ON HVAC PROJECTS

Commercial & institutional HVAC: offices, schools, hospitals, labs and government buildings with VAV, dedicated outdoor-air and energy-recovery systems.
Industrial ventilation: exhaust, make-up air, fume and heavy-gauge duct for shops, plants, shipyard buildings and process areas.
Stainless & aluminum duct: corrosion-resistant duct for coastal, washdown, marine and tunnel environments, including passivated and brushed finishes.
Healthcare & lab air: pressurization, filtration and high-exchange-rate systems with stainless or coated duct where specified.
Kitchen & special exhaust: welded grease-duct and special exhaust components coordinated with the applicable code and AHJ.
Equipment curbs & stands: roof curbs, equipment rails, platforms and stands fabricated in steel, stainless or aluminum.
Duct supports & seismic bracing: trapeze hangers, strut framing, wall and ceiling brackets and restraint hardware.
Shop drawings & clash detection: imperial-inch 3D CAD shop drawings with MEP clash detection, coordinated with PE-stamped submittals via licensed Virginia PEs.

CODES & STANDARDS WE WORK TO

Virginia Mechanical Code:2021 Virginia Mechanical Code (IMC 2021-based), effective January 18, 2024.
ASHRAE 62.1 & 90.1:ventilation and energy requirements; Virginia's 2021 IECC allows ASHRAE 90.1 compliance.
SMACNA:HVAC Duct Construction Standards; Seal Class A is commonly required.
NFPA 90A:air-conditioning and ventilating systems, including fire / smoke damper coordination.

WHAT TO INCLUDE WITH YOUR RFQ

  • Mechanical drawings, duct layouts and equipment schedule
  • Duct material, gauge, pressure class and seal-class requirements
  • Field-measure or tie-in constraints and outage windows
  • Target delivery or jobsite release schedule
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Or call 804-384-0211 • 888-384-0121