The Ultimate Guide to Attic Insulation: What You Need to Know

When it comes to insulating your attic, there are a variety of materials to choose from. Learn about fiberglass, blow insulation, foam insulation and more in this comprehensive guide.

The Ultimate Guide to Attic Insulation: What You Need to Know

When it comes to insulating your attic, there are a variety of materials to choose from.


is considered to be the most cost-effective and easiest to install, and is incredibly energy efficient. It is also the most common insulation material used in attics, as it is available in both block and loose fill forms. Loose fill insulation, also known as blow insulation, is perfect for filling tight gaps around wiring, pipes, or any area with an awkward structure.

Foam insulation is also an option, and is the MVP of insulating materials when it comes to performance. The cost of attic insulation will vary depending on your location, the materials you choose, and the size of your space. However, if you invest in the best attic insulation, you can prevent pollutants from invading your attic and home. The most effective way to insulate an attic does not always coincide with the most cost-effective way.

When it comes to choosing the best insulation for your attic, there are a few factors to consider. The type of insulation you select should depend on the R-value you need, as well as the materials used and the ease of application. Owens Corning EcoTouch is our top choice for fiberglass rolls, as it has advanced fiber technology that allows for quick and accurate installation. It's also resistant to shedding, meaning it avoids some of the problems associated with traditional fiberglass materials.

How to Install Attic Insulation

To protect your attic from heat and cold, thick insulation pieces cut tightly should be placed between the gaps in the wooden frames or around pipes, cables and other obstacles. Trim the spaces in the insulation to fit around obstructions such as drain pipes, large water pipes, attic fans, and air conditioning ducts. If you check with the Cellulose Insulation Manufacturers Association, they will assure you that cellulose is definitely your best choice for insulation. Install this Owens Corning insulation in an uninsulated attic or add it as a second layer to increase a home's R-value potential and reduce heating and cooling costs.

Generally, if it's less than 10 to 13 inches (the equivalent of an R-30), it's recommended to add more insulation.

The Best Insulation for Your Attic

Overall, fiberglass is still considered to be the best insulation for attics due to its affordability and energy efficiency. However, depending on where you live and how old your home is, the recommended level of attic insulation differs. Investing in quality attic insulation can help protect your home from extreme temperatures and moisture damage while reducing heating and cooling costs.

Christian Zani
Christian Zani

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