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Insulation R-Value 101

R-value is a significant part of how insulation works—it indicates how effective a particular material is. This term of measurement plays a major role in determining how much insulation is needed and how much money you can save.

How much insulation do you need in your home? Keep reading to learn more about R-value and recommended insulation levels in relation to where you live!

How Is Insulation R-Value Calculated?

Let’s start at a base point: solid wood has an R-value of 1. An R-value is also calculated per inch of width. Therefore, a three-inch-thick board has an R-value of 3. Blown fiberglass installed in the attic has an R-value of 2.2 per inch, so 12 inches of it would give you an R-value of 26.4 in your attic installation project.

What R-Value Is Best for My Home?

Yes, generally a higher R-value means a more effective insulator, but the highest R-value possible may not be necessarily right for your project. Homes in certain climates don’t need as much insulation as others. For example, homeowners in Florida don’t need to worry about insulating against extremely cold temperatures—the weather is quite different here in California. That’s why different regions of the United States have different recommended insulation levels recommendations. In the Hesperia area, we are in zone 3.

Insulation Levels for CA Homes

Source:energystar.gov

Where to install insulation is the second thing you’ll need to know because different areas of your home require different R-values. The attic needs a higher R-value than the walls because heat naturally rises and commonly escapes through your attic. Different materials also differ in R-values. For example, spray foam insulation has a different R-value than fiberglass.

After you’ve figured out your zone and where your insulation is going to go, then you look at your different options and types of insulation.

This is a lot of information, but don’t worry—you won’t be doing this on your own. An insulation company will be able to help you with all your needs and explain R-value, the right amount of insulation for your home and more!

Choosing the Right Insulation Solutions

The R-Value shouldn’t be the only determining factor when you choose insulation. How old your home is, its location and building materials can all play a part in choosing the right insulation. Cost and the inhabitants of the home may be another factor in your decision-making. No matter what type of installation you choose for your project, Apple Valley Insulation can help.

Contact us to learn more about our insulation installation services or if you’re ready to install insulation in your Hesperia, California area home!

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