Did you know that many homes in Southern California could reduce their energy costs by 10% by sealing their ducts and increasing the amount of insulation in the attic?
Here are three key decisions you must make before installing additional attic insulation in your home.
The first thing to determine is whether or not you are going to do the project yourself. This decision plays a large role in the other choices you will be making. You have a couple of options:
Once you have decided on the method of installing additional attic insulation in your home, it’s time to move on to material and R-value.
The efficiency of attic insulation is measured in R-values. The higher the R-value, the more resistant it is to heat flow, the more efficient it is, and the more you will save on heating and air conditioning costs.
In the Southern California climate, the recommended total attic insulation is a rating of up to R60. For homes with an existing 3-4 inches of insulation, that means adding about 12-15 inches of insulation (R30-R38).
Selecting the right R-value will reduce your energy costs the most. Remember: each type of insulation will have different R-values, so compare cost as well as R-value when choosing one of the below materials.
Depending on your decisions above, you may have one or several types of insulation to choose from. The following examples are the most common types of insulation used in residential attics.
Now that you know how you will be installing your additional attic insulation as well as what type, it’s time to get started. If you are doing it yourself, check out this sealing and insulation guide from ENERGY STAR. If you are hiring a contractor, they will walk you through the process.
Have a heating, cooling or insulation question we did not answer in this blog? Get a quick answer by asking our experts.