Tips for Insulating Your Crawl Space

If you live in a location with a harsh climate during the summer or winter, you’ve probably been searching for ways to make the indoors of your home comfortable. Insulating your crawl space may seem unnecessary; however, it’s directly connected to improving your home’s energy efficiency.

Crawl space insulation can help keep your floor warm while at the same time preserving the structure of your floors. If you want lower energy bills, need to fix drafts, and need to regulate the interior of your home, you should consider replacing your crawl space insulation

As you continue to read below, we’ll discuss understanding crawl space environments, types of insulation, and why it’s essential to hire a professional when insulating a crawl space.

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Understanding the Crawl Space Environment

When you have high temperatures and low humidity in your crawl space area, this could cause your crawl space to become wet. If you have high humidity and low temperatures, this could cause your crawl space to become dry. If the temperature and humidity are not accurate, this may cause unwanted moisture in your crawl space.

Before you have new crawl space insulation installed, it’s essential to have one of our professionals assess the environment. Since crawl spaces are prone to mold, moisture, and dampness, you’ll want to ensure that these areas are taken care of before installation. New crawl space insulation will prevent the transfer of humidity and cold air from damaging your home.

Choosing the Right Insulation for Your Crawl Space

When deciding on the right crawl space insulation for your home, you can choose from Batt Insulation and Rigid Foam Insulation. When installed by professionals, rigid foam insulation would be installed against the walls of your crawl space. When installing batt insulation, this type of insulation is installed in the rim joists of your crawl space.

Batt Insulation

Batt insulation is one of the most common types of crawl space insulation that is used by professionals. Batt insulation can be quickly installed, gives a snug fit, and gives you outstanding sound and thermal control. Our professionals at Master Attic can install batt insulation in your crawl space ceiling joists


    • Top-rated by professionals: proven to have the best quality, appearance, and productivity.
    • Great performance: gives outstanding thermal and sound control properties.
    • Minor cleanup: creates a minimal amount of dust during installation. 
    • Quick installation: fabricates to make for a quick and easy installation. 
    • Amazing quality: made of resilient fibers that are easily cut.
    • Inexpensive

For maximum effectiveness, batt insulation must be installed and fitted correctly. Give us a call at Master Attic to determine if batt insulation is the best option for your crawl space. 

Rigid Foam Insulation

Rigid foam insulation are sheets of foam made to various sizes to fit your crawl space area. Rigid foam insulation has a closed-cell construction, which is fully encapsulated.


  • Rigidity: The rigid foam’s closed-cell construction creates rigidity, which makes it very easy to work with when installing new crawl space insulation. You can install this insulation against walls, rim joist cavities, and other areas when insulating your crawl space.
  • Lightweight: Rigid foam insulation is 2% plastic and 98% air.
  • Stops moisture and air: Closed cell construction prevents moisture and air from passing through. Rigid foam insulation will keep unwanted dampness out of your crawl space and seal it from air leaks. Our professionals at Master Attic can conduct air gap sealing to save on energy costs.


One of the only cons about rigid foam insulation for crawl spaces is that it costs more than fiberglass insulation. Because of its higher costs, this makes it one of the less-preferred options. 

Why Choose Master Attic for Crawl Space Insulation?

At Master Attic, we train our team in-house to become educated in installing insulation in attics and crawl spaces. We have over 20 years of experience restoring homes to their original condition, saving homeowners on energy costs, and rodent-proofing crawl space areas.

To earn the trust of our customers, we will educate you on our expertise for your crawl space. By using superior materials to install new crawl space insulation, we ensure safe and effective solutions to bring you long-lasting results.

When you schedule to meet with our professionals, we will carefully discuss and plan accordingly to meet your needs and budget. Since 2017, we have earned five awards from Angie’s List for providing Super Service. 

Wrapping It Up

To wrap things up, insulating your crawl space can help save on energy costs, prevent drafts, keep your home warm in the winter, and prevent moisture issues. 

Our professionals at Master Attic believe that insulating your crawl space can help trap the positive heating and cooling in your home to help you save on energy costs and prevent more severe issues from arising. 

Contact Master Attic

If you have any questions or concerns, Contact Master Attic today for a free in-home estimate on insulating your crawl space.


Phone Number: 800-285-4009

Email: [email protected]

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