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Crawl Space Insulation

Cold floors, drafts, and high energy bills are common struggles homeowners face, but they point to crawl space moisture problems that will escalate if they are not addressed. 

Crawl space insulation is essential to maintaining a comfortable and healthy home. Without proper insulation, your house is susceptible to moisture, mold growth, and pest infestations. Insulating your crawl space can help prevent these issues and improve your home’s energy efficiency. 

Ohio Basement Authority offers a trusted fix with our AquaStop™ ExTremeBloc™ Crawl Space Insulation. As specialists in creating healthier homes throughout Central and Southern Ohio, we provide a crawl space encapsulation process that addresses existing problems and prevents future issues. 

Explore this page to see how our expertise can enhance your home’s comfort and longevity. 

What is Crawl Space Insulation?

Crawl space insulation is a material used to insulate the crawl space beneath your home.

It is a critical component in the broader context of home energy efficiency and indoor air quality. By insulating the crawl space, you’re adding a barrier to heat loss and creating a moisture-resistant environment that curtails mold growth and helps deter pest infestation.

Proper crawl space insulation involves installing a reliable material, such as ExTremeBloc™, specially designed to withstand the damp conditions commonly found beneath houses.

When insulation is paired with crawl space encapsulation—a process that seals off the area from the earth and outside air—your home benefits from regulated humidity levels, reduced energy costs, and improved overall air quality.

At Ohio Basement Authority, we see crawl space repair as part of a holistic approach to a home’s health, contributing to a more comfortable living space and ensuring the structural integrity of your home.

Signs You Need Crawl Space Insulation

Recognizing the signs of crawl space insulation needs can save you money on costly damage:

These symptoms point to moisture concerns that, if ignored, might cause serious consequences. It’s essential to schedule a free inspection with crawl space professionals as soon as you notice any of these problems.

Is Crawl Space Insulation Necessary?

Yes, insulating your crawl space is necessary to protect your home.

Without addressing insulation issues promptly, moisture and humidity levels will continue to rise, enabling mold growth that can worsen respiratory problems. Pests and rodents may also invade your home through gaps in damaged insulation.

As part of our whole-home solution at Ohio Basement Authority, we emphasize the importance of early intervention, ensuring the longevity of your home’s structure and the health of its occupants.

We do not recommend DIY efforts inspecting or insulating your crawl space. This area can be hazardous, and big-box store solutions fail to address the root of the problem. Trust Ohio Basement Authority professionals to accurately assess, repair, and protect your crawl space.

What Are the Different Kinds of Crawl Space Insulation?

While there are many types of insulation, here are the most common ones used in crawl spaces:

Fiberglass Insulation

Fiberglass is the most widely used insulation in homes throughout Ohio and across the country. However, it does not belong in a crawl space.

Rolls of this soft material are typically placed between the floor joists and rim joists in the crawl space to help the above floor maintain a constant temperature. However, it is highly susceptible to moisture, mold growth, and pest infestation.

Spray Foam Insulation

Insulation can also be sprayed onto surfaces like crawl space walls, floor joists, and rim joists to help block out cold winter temperatures and hot summer air. However, it is not the most suitable option for a crawl space.

Most types are closed-cell spray foam, which makes them more rigid and durable, but they are not entirely damage-proof. In a damp area like a crawl space, spray foam insulation can develop mold, emit unpleasant chemical odors, and lead to termite damage.

Foam Board Insulation

For more effective crawl space insulation, choose large, pre-formed sheets of thermal foam board insulation like ExTremeBloc™. These panels can be cut to size and installed on interior crawl space walls.

ExTremeBloc™ has reflective surfaces to improve heat retention and a superb insulation value, though it is thinner than other types of insulation, such as fiberglass.

What Are the Benefits of Crawl Space Insulation?

Installing the right crawl space insulation offers many benefits, including:

  • Moisture Control: Crawl space insulation can prevent moisture from entering your home. This can help to prevent mold growth, pest infestations, and other issues with ground moisture that can affect your home’s health and safety.
  • Enhanced Energy Efficiency and Cost Savings: Without adequate insulation, your air conditioner and furnace work more, increasing energy bills. You can lock out hot, muggy summer air and cold winter air. This can make your home more energy efficient, allow you to conserve energy, and lead to cost savings on your heating and cooling bills.
  • Improved Indoor Comfort: In the same vein, insulation panels can create a more comfortable home environment overall by keeping your floors warmer in the winter and cooler in the summer. Insulation also contributes to better air quality in your home, making it a healthier environment for your family.

Pairing our proprietary solutions and professional services is vital for optimal results. Our products, developed with the latest technology and highest quality materials, outperform standard options elsewhere, offering unparalleled benefits to your home.

How We Install Crawl Space Insulation

Crawl space encapsulation is all-encompassing and involves several crucial products, including insulation. Here is the process we follow when installing these comprehensive solutions:

Trust Ohio Basement Authority for a smooth and effective crawl space insulation and encapsulation installation from beginning to end.

Why Our Crawl Space Insulation is the Best Choice for Your Home

Here’s what makes Ohio Basement Authority’s ExTremeBloc™ foam board insulation stand out:

  • Lightweight, yet durable panels
  • Eco-friendly materials
  • Class A fire rating
  • Graphite-infused, expanded polystyrene body
  • Radiant heat barrier coating
  • Integrated termiticide and pest deterrent
  • High R-value for superior thermal resistance
  • Moisture resistant

Installed with a gap to allow for pest control inspections

Contact Ohio Basement Authority for Crawl Space Insulation Today!

At Ohio Basement Authority, we understand the importance of an adequately insulated crawl space. You can trust our staff with all your crawl space repair needs, as we have been serving homeowners throughout Columbus and Central Ohio for 15 years. Our team of experts has the experience and knowledge necessary to install crawl space insulation quickly and efficiently.

We offer various solutions to fit your needs and budget and stand behind our work with a quality guarantee. Ohio Basement Authority provides free inspections and estimates, so you can determine the best course of action for your home.


Many insulation types can last 15 to 20 years but fall victim to mold and moisture if the crawl space is improperly sealed and encapsulated. However, Ohio Basement Authority’s ExTremeBloc™ rigid foam board insulation is designed to be a permanent solution. Contact us to learn more and to schedule a free crawl space inspection.

R-value measures the thermal resistance of building materials like crawl space insulation. Higher R-values indicate better heat retention. The R-value is influenced by the type of insulation, the material chosen, and the installation method employed. Learn more about Ohio Basement Authority’s reliable crawl space insulation and R-value by contacting us for a free crawl space inspection.

The price depends on the severity of damage in the crawl space, the size of the crawl space, and the needed repair solutions. After a free crawl space inspection, Ohio Basement Authority experts will provide you with a no-obligation estimate detailing the costs and various financing options

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