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In Episode 71 of the On the Job Video series, Larry Janesky, owner and founder of Dr. Energy Saver, walks us through the attic of a home in Connecticut that had been previously insulated by another contractor to illustrate common mistakes being perpetrated by many insulation contractors across the country.

The owners of this home had serious comfort issues, with uneven temperatures around the house and rooms that were just drafty and hard to heat. They called contractors from the state energy program for help. After a quick energy audit, the contractors informed the homeowners that they would benefit from additional attic insulation and the contractor was then hired to add inches of blown fiberglass to the attic.

After the work was performed, however, the home was still just as uncomfortable as it was before. That is when they decided to call in Dr. Energy Saver and find out what went wrong. After performing a blower door test, Larry and his team realized that there was a significant amount of air leaking in and out of the house, greatly impacting comfort and energy savings.

According to Larry, installing attic insulation without air sealing is malpractice, yet it is a very common practice among contractors because homeowners aren’t always aware of the problem. We hope this video will help homeowners across the U.S. make informed decisions when it comes to improving comfort and energy efficiency in their homes.