Skip to main content

NC State Extension

Duct / Ductwork – Defined

en Español

El inglés es el idioma de control de esta página. En la medida en que haya algún conflicto entre la traducción al inglés y la traducción, el inglés prevalece.

Al hacer clic en el enlace de traducción se activa un servicio de traducción gratuito para convertir la página al español. Al igual que con cualquier traducción por Internet, la conversión no es sensible al contexto y puede que no traduzca el texto en su significado original. NC State Extension no garantiza la exactitud del texto traducido. Por favor, tenga en cuenta que algunas aplicaciones y/o servicios pueden no funcionar como se espera cuando se traducen.

English is the controlling language of this page. To the extent there is any conflict between the English text and the translation, English controls.

Clicking on the translation link activates a free translation service to convert the page to Spanish. As with any Internet translation, the conversion is not context-sensitive and may not translate the text to its original meaning. NC State Extension does not guarantee the accuracy of the translated text. Please note that some applications and/or services may not function as expected when translated.

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.


  • 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


Screen Shot 2014-06-07 at 7.09.36 p.m. Screen Shot 2014-06-07 at 7.10.53 p.m. Screen Shot 2014-06-07 at 7.23.28 p.m. Screen Shot 2014-06-07 at 6.53.54 p.m. Screen Shot 2014-06-07 at 6.44.46 p.m. Screen Shot 2014-06-07 at 6.47.12 p.m.

Page Last Updated: 5 years ago
Was the information on this page helpful? Yes check No close