Did you know the average U.S. home has a half-mile of gaps and cracks? Those air leaks not only contribute to higher energy bills, they make homes less healthy by allowing in unwanted moisture and unfiltered air as well as bugs and pests.

Even the most DIY-challenged can successfully air seal the biggest offenders like plumbing and wire penetrations, dryer vent connections and outside faucets. These air leaks can be addressed using insulating foam sealant such as DuPont’s Great Stuff^TM. Sealing plumbing penetrations alone will, on average, result in $45 in annual energy savings.

Sealing plumbing penetrations can result in $45 in annual energy savings.

Once you begin use of a one-time can of spray foam it will cure in the nozzle and straw, sealing shut within two hours. So before you begin your project, create a thorough air-sealing checklist of the places you plan to address. For indoor projects, make sure you have adequate ventilation and cut off all ignition sources. Wear gloves and safety glasses while spraying. Dispose of open cans once spraying is complete.

More info: greatstuff.com