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Published November 09, 2009, 09:14 AM

Cold Season Savings Tip: Seal your foundation

(WDAY TV) - When you're looking for energy savings, don't ignore the basement. Even if you don't spend much time down there, a cold lower level means cash lost. To lower heating costs, you've got to go low.

By: Kelsey Soby, WDAY

(WDAY TV) - When you're looking for energy savings, don't ignore the basement. Even if you don't spend much time down there, a cold lower level means cash lost. To lower heating costs, you've got to go low.

Rim joists and the basement foundation wall are often overlooked for heat loss. Experts say concrete already provides no more insulation than a window pane so the last thing you want are cracks letting additional heat escape.

Some things you can do? Fill cracks with a foam sealant, but be sure to only use minimal expanding foam around windows and doors, or else the framing will buckle. You can also fill rim joist areas with rigid insulation, but make sure it’s up to fire code.

“You can tell when there's dirt that there's air passing through.”

If you only have the time or patience to do some of the filling then focus on spots above ground where air passes through. You can even see some of the gaps on the outside. Look here, I can actually fit my fingers in and feel air passing through. That means heat and your money is being wasted.

“If you don't seal, you're paying to heat the outside.”

Pederson says a hired contractor can do an entire basement in less than an hour.

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