Since you do not spend a lot of time in your attic you may not think about how it is insulated and how it effects your heating and air conditioning in the house. With the proper amount of insulation in your attic, you would be surprised how much this will save on your energy bill. Making sure your attic is insulated properly will ensure you are not throwing money out the window.. or actually out your roof.
Why is it important to have a properly insulated attic when all you use if for is storage? Proper attic insulation and ventilation play major roles in controlling the temperature and overall comfort level in your home during all seasons. Attic insulation is a critical component of keeping cool air in your home during the hot months and warm air in your home throughout the heating season.
If your attic is not properly insulated, it causes your heating and air conditioning to run at a higher power and for longer which drastically effects your energy bill. Cost can vary based on the habits of the homeowner but you could save on average of 20% on your energy bill but upgrading the insulation in your attic.
Now that you understand why it is important. Lets talk about what type of insulation is best for your home.
Insulation is rated in terms of thermal resistance, known as R-Value. The higher the R-Value, the better the insulating power. Here are the three main types of attic insulation available:
Roll-on insulation is generally the least expensive kind of attic insulation because it is somewhat easy and quick for professional contractors to install. It is flexible, allowing it to fit tightly between studs, rafters, etc. and the tight fit helps keep the air trapped in the home.
Blown-in insulation is thought of as more efficient due to the loose-fill because it allows the insulation to fill smaller crevices where air could possibly leak out. Blown-in attic insulation is also moisture resistant, which helps keep mold and odor from forming in your home.
Spray foam insulation is regarded to be the most energy-efficient type because it expands and tightly seals all holes where air could possibly leak from. Not only does the spray foam attic insulation create an air-tight seal, but it generally works longer than other types of attic insulation.
If your attic is currently insulated, you may want to find out when the insulation was installed to ensure it meets the EPA guidelines for energy efficiency. Also, if the product has compressed, it could be ineffective.