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

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 three steps to properly air sealing and insulating a crawl space:

1. Drain Fabric

Prevents the crawl space liner from “sticking” to soil
Enhances water drainage beneath liner
We use 100% polypropylene fibers that won’t rot or decay
Cushions the floor of the crawl space to protect the liner, hands and knees

2. 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

3. Spray 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