NC State Extension

Air Sealing Videos

General Air Sealing Videos

  • Video – How to Make a House Energy Efficient – At 1:49 – 4:00 there is a great description of ceiling joists, insulation, and air sealing. Dirty insulation is a sign that sealing is needed. At 4:30 – Sealing around the bath fan. 5:30 – Knee Wall – board foam. 8:20 – description of cellulose insulation.
  • Sealing Air Leaks in your Home
  • How to Seal an HVAC Duct with Mastic – Duct Sealant – (video) diaductcleaningFor about $1 of Mastic and 10 minutes of effort, you can stop losing money from leaky ducts. Energy Star estimates most homeowners lose 20% of the money they spend to heat and cool their homes because of leaky ducts. The air disappears into the walls and attic spaces without reaching your living space. This is a cheap way to save money and make your rooms comfortable.
  • Clean you dryer vent – Tdryer-vent_cleaning-300x168he vent on a clothes dryer can become clogged with lint over time, causing the dryer to dry less efficiently (ENERGY LOSS) and can result in dangerous house fires. To clean your dryer vent, remove the outside cover on the vent, and use a special lint brush with an extendable handletoclean the inside of the pipe.

Written By

Photo of Laura LanghamLaura LanghamEnergy Conservation Program Manager (919) 515-8474 laura_langham@ncsu.eduAgricultural and Human Sciences - NC State University
Was the information on this page helpful? Yes check No close