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Crew installing vapor barrier for crawl space encapsulation

Thermal Insulation

Thermal insulation will keep your crawl space and home comfortable, dry, and healthy.

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Crawl Space Insulation Experts in North Carolina

Prevent mold, moisture, and comfort problems with the right insulation
damaged fiberglass insulation

Crawl space insulation is important. A number of comfort and energy problems are caused by inadequate or incorrect crawl space insulation.

Fiberglass insulation in a crawl space tends to soak up moisture and humidity, growing mold and eventually causing it to droop off the ceiling.

Any crawl space can be wet and damp, so the insulation must hold up in those conditions. We recommend installing a vapor barrier along with proper insulation to prevent mold and moisture problems and keep your home comfortable year-round.

Crawl space vents bring humid air into a home during the summertime, where it’s cooled in the crawl space. As this air cools, the relative humidity of the air rises, and the excess moisture is left on surfaces in the crawl space in the form of condensation.

Some of this moisture ends up on the fiberglass insulation in your crawl space. Wet or damp fiberglass insulation does not insulate as well as dry insulation, and the added weight will pull it from the ceiling, leaving it in messy, useless piles on the floor. Wet insulation can actually become a food source for mold and rot–which will also grow on any other organic material in your crawl space–including your wood framing.

Additionally, while you’re insulating your floor, you probably have utilities in your crawl space, such as your water heater, furnace, heating ducts, and hot water pipes. If you allow the cold winter air into your home through crawl space vents, these heat-generating utilities will be forced to work that much harder.

When you count on Tar Heel Basement Systems for your crawl space insulation needs, we will send out an expert technician to inspect your crawl space and recommend the right services. We have the tools and experience to seal air leaks and install high-performance insulation to help improve your home’s comfort and energy efficiency.

Our options for crawl space insulation

The crawl space insulation materials that we install are compatible with our crawl space encapsulation and drainage systems to ensure a dry, healthy, comfortable crawl space!

installing ExTremeBloc insulation

ExTremeBloc™ Crawl Space Insulation panels look different because they ARE different. Tiny graphite particles permeate its foam insulation to give it that silver/gray shine.

These tiny particles reflect heat and lower the material’s conductivity for superior R-value per inch.

In addition to resisting heat conduction, ExTremeBloc™ Crawl Space Insulation boasts a radiant barrier, which reflects heat back into your crawl space for ultimate energy savings. ExTremeBloc™ Crawl Space Insulation crawl space insulation can also be installed on the perimeter of your floor framing system (rim joist) for maximum energy savings.

For the best in energy efficiency, combine ExTremeBloc™ Crawl Space Insulation and Floor Insulation together. This keeps the cold out of your crawl space — and the heat in!

ExTremeBloc™ Crawl Space Insulation Specifications

  • Thick Material — 2″-thick insulation with a radiant barrier to both insulate and reflect heat back into the crawl space.
  • Extra Insulation — ExTremeBloc™ Crawl Space Insulation has an R-11 value insulation to keep more heat in the crawl space and home.
  • Brings Crawl Space Up To Current National Energy Code
  • Graphite Particles Improve Insular Properties By 24%
  • Radiant Heat Barrier On Visible Side
  • Closed-Cell Insulation Will Not Soak Up Moisture Like Other Options
  • Economical Insulation Option For Crawl Space Environment

Quality & Economy For Insulating A Crawl Space

ExTremeBloc™ Crawl Space Insulation is an expanded polystyrene foam insulation that’s been infused with graphite during its creation to improve its insular ability by 24%. Combined with its silver radiant heat barrier on the visible surface, it provides an insulation rating of R-11 on your crawl space walls. This insulation can be customized for special projects or local code requirements, making it a versatile, effective solution.

If you’re interested in keeping your crawl space dry to help prevent mold, rot, and musty odors, this is the product for you! ExTremeBloc™ Crawl Space Insulation also creates a vapor barrier on your crawl space walls that keeps moisture from making its way into your crawl space, where that moisture would help mold, rot, and mildew growth.

ExTremeBloc™ Crawl Space Insulation is part of a crawl space repair system that includes our Floor Insulation and our CrawlSeal™ Vapor Barrier. We also have several crawl space waterproofing products such as our SafeDri™ Sump Pump system to control flooding, our CrawlDrain™ Drainage System; the only drainage system made specifically for crawl spaces, and our durable CrawlSeal™ Drainage Matting.


Learn More About Thermal Insulation with an Expert Team

We Can Seal and Insulate Your Crawl Space!

At Tar Heel Basement Systems we have what you need to encapsulate your crawl space and upgrade its energy efficiency. Our warrantied products can keep water and moisture out of your home, while making your home more energy-efficient than ever!

For a free, no-obligation, written crawl space repair quote, we’re the contractors for you! Call or e-mail us today to schedule an on-site appointment!

We proudly serve Greensboro, Winston Salem, High Point, Lexington, and all of North Carolina.

Tar Heel Basement Systems services Mount Airy, Lenoir, Bristol, Statesville, Taylorsville, Abingdon, Boone and the entire state of North Carolina.


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TarHeel Basement Systems Service Map

Our Service Areas

Greensboro Location

611 Summit Ave, Suite 5
Greensboro, NC 27405

Raleigh/Durham/Chapel Hill Location

3333 Air Park Road
Fuquay-Varina, NC 27526

Winston-Salem/High Point Location

2910 Griffith Rd
Winston-Salem, NC 27103