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Range-hood duct before ceiling and cabinets checklist

A pre-concealment residential range-hood checklist for actual hood and cooking appliance, capture and mounting geometry, duct material and size, equivalent length and fittings, joint fastening and sealing, support, fire and structural penetrations, route cleanliness, exterior termination, damper access, weather and pest protection, makeup air and combustion interactions where applicable, electrical coordination, inspection approval, airflow commissioning plan, and photographs before ceilings, soffits, cabinets, roofing, or siding hide the exhaust path.

6 items to check

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Hood model, cooking appliance, mounting height, width, capture area, cabinet opening, and controls are coordinated

Critical item

The installed geometry should follow actual product listings and approved kitchen design.

Duct material, size, shape transitions, length, elbows, slope, and route match approved design and product limits

Critical item

The exhaust path should minimize resistance and use permitted durable materials and transitions.

Joints, mechanical fastening, sealing, supports, vibration isolation, fireblocking, and structural penetrations are complete

Critical item

The concealed duct should remain airtight, cleanable where required, stable, and compatible with structural and fire assemblies.

Exterior cap, damper, screen or pest detail, clearance, flashing, weather protection, and discharge location are complete

Critical item

Exhaust should discharge outdoors without recirculation, water entry, blockage, unsafe clearance, or damage to adjacent surfaces.

Makeup air, house pressure, combustion appliances, fireplace, whole-house ventilation, and HVAC interactions are resolved where applicable

Critical item

High exhaust or tight construction should not create unsafe depressurization or defeat designed ventilation.

Inspection, route cleaning, electrical provision, concealed photographs, and final airflow and noise commissioning plan are accepted

Critical item

The duct should be approved and documented before concealment, with a defined final test after hood installation.

Use after the complete kitchen exhaust path is installed but before cabinets and finishes conceal it. EPA guidance supports exhausting cooking pollutants outdoors; exact duct, airflow, makeup-air, and combustion provisions depend on locally adopted requirements and the selected hood. Do not energize exposed work, open or test gas piping, pressure-test plumbing, operate incomplete appliances, enter unsafe framing or attics, or modify structure without authorization. Licensed trades and the AHJ control required tests and approvals.

Reference standards

  • Approved kitchen and structural plans, appliance and cabinet specifications, adopted state and local building, residential, plumbing, fuel-gas, mechanical, electrical, energy, fire, accessibility, and health requirements, permit and inspection conditions, authority having jurisdiction requirements, signed scope and authorized changes, qualified design, and exact cabinet, countertop, appliance, ventilation, piping, wiring, fastening, and finish manufacturer instructions
  • Locally adopted IRC/IMC exhaust provisions, EPA cooking and indoor-air guidance, hood and cooking-appliance instructions, duct and damper instructions, approved exterior termination and makeup-air design where applicable

    • Tools

  • Current kitchen plan, elevations, appliance and fixture specifications, cabinet drawings, countertop details, permits, inspection records, selections, and change orders
  • Tape measure, level, camera, flashlight, product templates, owner-safe test tools, and dated photographs with dimensions
  • Qualified plumbing, gas, electrical, mechanical, cabinet, countertop, appliance, structural, and commissioning records where required

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