How To Spray Insulation In Attic You’ll Ever Need

Spray foam attic insulation is a highly effective way to improve the energy efficiency of your home, lower your energy bills, and increase your comfort level. By sealing up air leaks and insulating your attic, you can prevent heat from escaping in the winter and keep cool air inside during the summer months.

What is spray foam insulation?

Spray foam insulation is made up of two components that are mixed together on site and sprayed onto surfaces as a liquid. It then expands to fill the space and hardens into a solid foam. The result is a seamless, airtight barrier that resists heat flow and prevents air leakage.

Spray foam attic insulation

Benefits of spray foam insulation

There are numerous benefits to using spray foam insulation in your attic.

  • Improved energy efficiency: Spray foam insulation creates an airtight seal that prevents heat from escaping in the winter and keeps cool air in during the summer, resulting in lower energy bills.
  • Increased comfort: With spray foam insulation, your home will stay at a more consistent temperature, so you’ll be more comfortable all year round.
  • Better indoor air quality: Spray foam insulation helps keep allergens, pollutants, and moisture out of your home, which can improve indoor air quality and reduce the risk of respiratory issues.
  • Reduced noise: Spray foam insulation can reduce outside noise, making your home a quieter place to live.
  • Increased home value: Adding spray foam insulation to your attic can increase the value of your home and make it more attractive to potential buyers.

Types of spray foam insulation

There are two types of spray foam insulation: open-cell and closed-cell.

Open-cell spray foam insulation

Open-cell spray foam insulation is soft and spongy, and it is made up of tiny bubbles that are not completely closed off from one another. Because of this, open-cell spray foam is less dense and has a lower R-value than closed-cell spray foam insulation.

Closed-cell spray foam insulation

Closed-cell spray foam insulation is much denser than open-cell spray foam, and it has a higher R-value. It is made up of tiny bubbles that are completely closed off from one another, which makes it a better moisture barrier, as well.

How to install spray foam insulation in your attic

The installation process for spray foam insulation in your attic typically involves the following steps:

  1. The attic is prepped, including any necessary repairs or removal of old insulation.
  2. The spray foam insulation is mixed on site and then sprayed onto surfaces in the attic.
  3. The spray foam expands to fill any gaps or crevices and hardens into a solid foam.
  4. After the spray foam has hardened, any excess can be trimmed and removed.

Why hire a professional for spray foam insulation installation

While some homeowners may be tempted to install spray foam insulation themselves, it’s generally not a good idea. Here are a few reasons to hire a professional:

  • Safety: Spray foam insulation requires special equipment and protective gear to install, and there is a risk of injury if not properly trained or protected.
  • Expertise: A professional knows how to properly mix and apply spray foam insulation, ensuring the best possible results.
  • Warranty: Many spray foam insulation professionals offer warranties on their work, so you can have peace of mind knowing that your investment is protected.

When it comes to spray foam attic insulation, it’s important to choose a reputable professional with experience in the industry. Look for a company that offers free onsite estimates and has a proven track record of quality work.


Spray foam attic insulation is a great investment for any homeowner looking to improve energy efficiency, reduce energy bills, and increase overall comfort. With the right professional installation, you can enjoy all the benefits of spray foam insulation for years to come.

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