Duct / Ductwork – Defined
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Collapse ▲“A network of metal, fiberboard or flexible material flowing throughout a space which delivers air from an HVAC unit to the respective zones of a home or office.” HVAC Industry – Dictionary of Terms . Ducts and registers (i.e., intentional openings in the walls, floors, or ceilings covered by grills) carry air from the HVAC through the home.
DID YOU KNOW?
- Does it save energy to “close off” certain rooms of the house by closing the vents/registers and closing the doors? NO!
- Sheet Metal Duct -Fabricated ductwork from galvanized steel sheets. Duct systems shall include UL 181 listed ducts with approved closure systems including collars, connections and splices.
- Duct Blaster – A tool used to diagnose duct leakage. It consists of a calibrated fan capable of blowing up to 1,500 cubic feet per minute (CFM) of air, a pressure tap, and flexible ducting for hook-up with a duct system.
- Duct Board – Resin-bonded fiberglass formed into rigid rectangular boards faced on exterior with a fire-resistant foil-scrim kraft vapor retarder and faced on the interior with a tightly bonded non- woven mat.
- Duct Wrap Insulation. Thermally insulated fiberglass batt material that reduces unwanted heat loss or gain and condensation during system operation. Required Code Requirements: Meet IRC/IECC insulation requirements for climate.
- Air Sealing and Insulation: Ductwork
Videos
- How to Seal an HVAC Duct with Mastic – Duct Sealant
- Explanation of ductwork, how it works, how to identify leaks, products for sealing, and how to seal.
- Repairing Ductwork – How to Repair Large Holes in Ductwork
- Sealing Ductwork DIY – How to Seal your Ductwork
- Installing Flexible Duct – Insulated Duct – DIY
- How to Seal an HVAC Duct with Mastic – Duct Sealant
