Residential, Retrofit, and Commercial Insulation Experts

3645 Board Road, York, PA 17402

Crawl Space Insulation

Crawl Spaces under homes can create enormous headaches for homeowners. A crawl space is susceptible to moisture and deterioration problems. Because the soil has high humidity, a crawl space naturally becomes damp, as the crawl space is in direct contact with the soil. Damp environments are unhealthy, harboring mold and creating an ideal living space for pests.

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 - Before Crawl Space - After

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By properly air sealing and insulating your home’s crawl space, you win in many ways:

  • you create a more comfortable and more healthy living environment for you and your family
  • save on energy costs by not having to heat or cool the air from the crawl space that is pulled into your home due to natural air flow
  • create additional storage space for your home by creating a clean and dry space beneath your home

There are two steps to properly air sealing and insulating a crawl space:

1. Floor Liner

  • Seals out moisture and soil gases
  • Unaffected by storage items and human traffic
  • We utilize a multi-ply, 22 mil liner that has a 25-year manufacturer’s warranty

2. Spray Foam or Rigid Foam Insulation

  • Allows the walls of the crawl space to breathe
  • No nesting support for insects or rodents
  • Won’t support mold growth
  • Can be installed to your specific choice of R-value