What are the benefits?
Every home needs proper ventilation and some air circulation to provide a healthy environment. But in most homes, adding up all of the cracks, crevices and gaps where air can get in and out is like having a door wide open all year-round. Air infiltration control helps you “close the door.”
The most important step in air infiltration control is sealing cracks and holes, and the first place to check is around the windows and doors. These leaks can be sealed using caulking or low expanding spray foam sealant. For cracks that are ” or less, use siliconized caulk. Use spray foam sealant for larger cracks and holes. In shim spaces around windows and doors, use low expanding foam.
In addition to leaks around windows and doors, check for poorly installed and leaky duct work and in hidden passages in your walls, called attic passages. These are major contributors to drafts and uncomfortable room temperatures. Sealing and insulating duct work and increasing the levels of insulation in your attic can greatly enhance the efficiency of your cooling and heating system as well as make your home more comfortable.
Common areas to check for air leakage in your home include: