Air Sealing

air-leakage, wasted energy, air escaping out of the house, energy efficiency, energy audit.

Did you know that most homes leak so much air that it’s like leaving a window open 24 hours a day?

Picture this: You’re standing outside on a windy day in the winter and you’re wearing a sweater. You’re cold because the wind is blowing right through the sweater. In order to stay warm, you need to add a wind breaker over your sweater. The insulation in your home acts like a sweater; however in order for your home to stay warm, it needs air sealing which mimics the role of the wind breaker.

Air sealing and insulation are significant contributors to lowering your utility bills and making your home a more comfortable, greener environment.

Before we perform any air sealing measures, we will calculate the Building Airflow Standard (BAS) which determines the proper amount of air exchange for your particular home. The BAS is calculated by taking into account the home’s volume, number of stories, geographic location, and how many people are occupying the home. Then we run the blower door which calculates the actual air exchange. The reason we do this is because if your home is tight already, we do not want to make the home too tight and cause any safety issues once we perform the air sealing measures.

Windows and doors are a nuisance when it comes to air entering and escaping; we try to tackle the big picture items which will help with those nuisance leaks. The rim joist in the basement is a critical area where air penetrates into the home and the attic is another critical area where air escapes out of your home. Before we insulate in the attic, we will pull back the existing fiberglass batting and use spray foam to fill up any areas where air may escape or penetrate. The gaps can be from top plates, shrunken lumber, plumbing and electrical chaseways, high hats, and ceiling fans.

Find out how we can make your home less drafty. Contact us to schedule an energy audit!