A critical step to improving your home’s energy efficiency is attic air sealing. Before air sealing, you should first, detect air leaks. Insulation and air sealing are important components in all homes. They provide comfort during different seasons, reduce temperature changes, and save money and energy. Air leakage through doors, windows and walls not only leads to uncomfortable drafts, but it also wastes energy and increases your costs.
Sealing cracks and openings reduces drafts and cold spots, improving comfort in your home. The recommended strategy is to reduce air leakage as much as possible and to provide controlled ventilation as needed. In California, 30% of energy used in the home is for heating and cooling. Adding insulation and filling gaps around doors and windows with caulk, and batting are some of the quickest and most cost-effective ways to reduce wasteful air leakage.
Trained contractors can help you identify areas in your home where air leaks can be sealed. Proper ventilation is important, but unwanted air drafts make your home less comfortable. Sealing reduces leaks and drafts in which treated air can escape from your home, making your air conditioner or furnace work even harder. Sealing creates a controlled barrier between inside and outside air. 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 investments. Caulk is generally used for cracks and openings between stationary house components such as around door and window frames, and weathers tripping is used to seal components that move, such as doors and operable windows.
BENEFITS ON AIR SEALING
Lower Energy Bills
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. Air leakage also contributes to moisture problems that can affect occupants health and the structure’s durability. It is important to seal leaks in the attic first because this is where the most significant leakage occurs. Sealing basement and crawl space areas should be the next priority. Air sealing all of these areas in your house eliminates a major source of cold air infiltration. The process of locating and addressing areas of your attic that have allowed exterior air to filter in.
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. Spots that often require attention include can lights, false soffits, and bath fan penetrations. Simply adding insulation does not fully address the root of the issue which is outside air making its way into the home. There are numerous benefits of air sealing your home including, even temperatures, a more comfortable and energy-efficient home, possible energy tax credits, reduces drafts in your home, improve indoor air quality, better performance of the HVAC system, and lower energy bills