Attic Air Sealing

Air Sealing + Insulation


Reducing air leakage in your home saves money and energy.
Reducing heating and cooling costs all year.
What does this mean for you…?

With the steadfast changes in our midwest weather it is important to keep up good maintenance on all of your buildings, whether it’s at your home and/or business.

• Save money and energy by air sealing your house.
• Caulking and weatherstripping are effective ways of sealing your home.
• Sealing bypasses and chases within interior and attic walls.
• Two-part spray foaming basement sill-boxes.
• Spray foam all top plates and electrical and plumbing penetrations.

Reducing the amount of air that leaks in and out of your home is a cost-effective way to cut heating and cooling costs, improve durability, increase comfort, and create a healthier indoor environment. Caulking and weatherstripping are two simple and effective air-sealing techniques that offer quick returns on investment, often one year or less. Caulk is generally used for cracks and openings between stationary house components such as around door and window frames, and weatherstripping is used to seal components that move, such as doors and operable windows.

Air Leakage

Air leakage occurs when outside air enters and conditioned air leaves your house uncontrollably through cracks and openings. It is unwise to rely on air leakage for ventilation. During cold or windy weather, too much air may enter the house. When it’s warmer and less windy, not enough air may enter, which can result in poor indoor air quality. Air leakage also contributes to moisture problems that can affect occupants’ health and the structure’s durability. An added benefit is that sealing cracks and openings reduces drafts and cold spots, improving comfort.

The recommended strategy is to reduce air leakage as much as
possible and to provide controlled ventilation as needed.

Before air sealing, you should first:

• Detect air leaks
• Assess your ventilation needs for indoor air quality.

A MadCity Environmental Specialist will use a blower door and infrared camera to track the air movement throughout the building as a tool to help detect heat losses and air leakage in building envelopes. All deficiencies will be corrected using all methods available including but not limited to: lighting retro efficiencies, energy management, and control system installs.

Note that air sealing alone doesn’t eliminate the need for PROPER INSULATION to reduce heat flow through the building envelope.