Crawl Space Insulation

When there is heating or cooling equipment, plumbing or ducts in your crawl space, insulating the space underneath your house is necessary. It gives you comfort, better air quality, and energy-saving. While DIY crawl space insulation is cheap, you don't get guaranteed long-term results. Over time, it loses its effectiveness and you are faced with the same old problem with your crawl spaces like mold growth, musty odor, and insect infestation. It is to your best benefit to assign your crawl space insulation project to the experts.

Professional Crawl Space Insulation

Heartland Foundation Repair of Kansas City is a professional contractor specializing in basement and crawl space services. We have provided effective crawl space insulation services to thousands of homeowners in Kansas City and surrounding areas over the last 40 years.

We recommend proper insulation for your crawl space that is vented and uninsulated or where existing insulation is not sufficient to produce high air quality and comfortable living conditions for your home such as when old fiberglass batts have been installed. Although cheap, fiberglass batts have many disadvantages. It absorbs water and loses its R-value when wet. Air passes through the batts resulting in uncomfortable rooms upstairs, cold floors and high energy bills. Wet and dirty fiberglass also encourage mold growth.

Spray Foam Crawl Space Insulation

Closed-cell spray foam is the only insulation material that achieves a full seal in a crawl space. Applied between the floor joists or on the foundation walls, it forms an effective thermal barrier around the obstructions that defeat batt insulation — ductwork, plumbing, wiring, and wide or narrow joist spacing — and it doubles as a vapor barrier between the ground and your home's subfloor.

If your crawl space is not properly sealed, the living space above it can be infiltrated by mold, earth gases, rodents, and other allergens. Because batt insulation cannot create an air or vapor barrier, it cannot keep contaminated, warm, or cold air from entering your home through the crawl space. Closed-cell spray foam stops that air and vapor movement, eliminating the problems caused by the "stack effect" that pulls crawl space air up into your walls and attic.

Fiberglass also fails mechanically: wire insulation hangers compress the batts, and open-web floor trusses create pathways for air to move around them. In a humid Kansas City summer, warm air flowing around fiberglass condenses in the floor system — generating mold, condensation, and decay. Spray foam completely fills those open webs, voids, and gaps around wiring and plumbing, creating a uniform thermal barrier across the entire floor.

Vented or Unvented — Two Ways to Insulate

Crawl spaces can be insulated two ways: insulating the ceiling for a vented crawl space, or insulating the walls for an unvented, sealed crawl space. Spray foam works in both approaches, and we will recommend the right one for your home during a free inspection. For sealed crawl spaces, insulation pairs naturally with our crawl space encapsulation and vapor barrier services, and with spray foam insulation throughout the rest of the home.

Contact Heartland Foundation Repair of Kansas City to ask how we may be able to help you improve the conditions of your crawl space. Call us to request a no-obligation consultation and estimate of our insulation service.