The average home's air leakage can be equivalent to leaving one of your windows open every day, all year long. Air leakage or infiltration occurs when outside air enters a house through cracks and openings. Moldy and dusty air can enter a leaky house through attics or foundations causing health problems. Proper sealing of these cracks and openings in your home can not only make your home more comfortable, but can save you money on your utility bills.
Top areas where air leaks from your home:
- Attic Hatch
- Wiring Holes
- Recessed Lighting
- Plumbing Vents
- Duct Work
- Basement Rim Joist
(where the foundation meets the wood framing)
According to the U.S. Department of Energy, most of the money that you spend to heat and cool your home is disappearing through cracks and holes in your ceiling, walls, and floors.
- 31% through floors, walls, and ceilings
- 15% through your duct work
- 13% through plumbing penetrations
- 11% through doors
- 10% through windows
Why air sealing is as important as insulation.
Insulation works best when air is not moving through or around it. So it is very important to seal air leaks before installing insulation to ensure that you get the best performance and to make certain that your heating and cooling systems operate efficiently. Air sealing also helps with these common problems:
- Reduce outside noise
- Less pollen
- Help to prevent dust and insects from entering your home
- Can help to control humidity