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Crawl Space Insulation Services in Manassas & Northern VA

Increase Energy Efficiency by Adding Crawl Space Insulation 

You might not think about your crawl space very often, much less crawl space insulation, but that small space under your home can lead to issues far beyond its size. Crawl spaces under homes are ideal harbors for dampness, mold, and pests. The humid soil surrounding the crawl space contributes to the space becoming damp, which then makes it a prime location for mold and pests alike.

Think this damp space is isolated and doesn’t affect the interior of your home? Think again. The natural airflow of a home is from bottom to top (ground to sky). As your home naturally breathes, the moist air (and everything in it) flows up and into the living areas of the home.


Crawl Space Insulation - Southland Insulators


Taking the time to properly insulate and air seal your home’s crawl space will help cut down on these issues down the line and saves you energy on your very next bill. Our skilled insulation team at Southland Insulators has the experience to help you determine the best method for insulating and air sealing your crawl space, helping make you and your family more comfortable in your home.

Crawl Space Insulation Installation Process

Our team understands how to properly seal and insulate a crawl space. This involves three steps:

  1. Drain Fabric: This layer prevents the crawl space liner from “sticking” to the soil and enhances the water drainage below the liner. We use liners that are made of 100% polypropylene fibers that won’t rot or decay.

  2. Floor Liner: This layer seals out moisture and soil gasses while being unaffected by storage items or foot traffic. We utilize multi-ply, 22 mil floor liners that have a 25-year manufacturer's warranty.

  3. Spray or Rigid Foam Insulation: We then install the insulation of the type and R-value of your choice. Both spray foam and rigid foam board provide insulation while allowing the walls of the crawl space to breathe. The foam material is resistant to both mold and pests.

Benefits of Insulating Your Crawl Space with Foam

Rigid foam and spray foams are moisture and pest resistant. Spray foam naturally seals air leaks which puts an end to air leaks that waste energy. It is a durable long-term solution that won’t compress, fall out of place, or lose R-value. Investing in spray foam or rigid foam insulation for your crawl space will immediately make your home more energy-efficient for years to come.

Why Homeowners Trust Southland Insulators

Southland Insulators is the premier insulation contractor in Northern Virginia and has been for decades. You can trust our expert team for high-quality and on-time crawl space insulation installation. In addition, to crawl spaces, we offer a wide range of residential insulation and commercial insulation services.

If you’re ready to make your home more comfortable and energy-efficient, contact Southland Insulators or call today. We can provide you with a free estimate and more information about how installing or upgrading your crawl space insulation can help immediately decrease your energy bill. 



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