Weatherization Projects to Keep Your Conditioned Air in the Home

Published on: March 11, 2015
Inside hvac ductwork | AC Southeast®

Conditioned air losses due to leaks in the exterior envelope of a home not only increase heating and cooling costs, they make it more difficult to maintain comfort. Weatherization in the form of sealing air leaks is an inexpensive and effective way to boost comfort and reduce energy bills too.

Worthwhile Home Weatherization Projects

Here are some easy air sealing projects for specific areas of the home:

  • Finished living spaces – Stop drafts around electrical outlets on exterior walls by installing foam gaskets behind the cover plates. If you have a fireplace, close the damper and use a chimney balloon or rigid insulation to block off the flue when it’s not being used.
  • Basement or crawl space – Use expandable foam and caulk to plug holes and gaps that allow air leaks between the living space and an unfinished basement or crawl space. Seal any basement windows with removable rope caulk.
  • Exterior doors – Install weatherstripping around exterior doors. To correct gaps under the doors that let conditioned air escape, install new door sweeps or raise the thresholds using the adjustment screws.
  • Windows – Replace any cracked window glass and missing or broken sash locks, and place weatherstripping around the moving parts of operable windows. Seal drafty single-panes by installing storm windows on the exterior or plastic film indoors.
  • Attic access hatch – Install cut-to-fit batt insulation on the upper side of the hatch, then add weatherstripping around the perimeter. If necessary, install a latch bolt to keep the hatch tightly closed.
  • HVAC ductwork – Seal accessible ductwork in the attic, basement or crawl space using mastic sealant or metal-backed tape. Then, cover the ducts with R-6 insulation.
  • Around the exterior – Seal gaps around plumbing, utility and electrical penetrations, as well as fan, HVAC and appliance vent covers. Fill in gaps between different building materials, such as brick and siding, or the foundation and rim joist. Use caulk for smaller spaces, and expandable foam to fix bigger defects. Use caulk to seal drafts and stop moisture infiltration around all window and door frames too.

Learn more about weatherization services available from AirConditioningSouthEast.com, or contact us today to locate an experience HVAC contractor near you!