Crawl Space Radon Mitigation in Omaha

Radon solutions for crawl spaces and mixed foundations

Some Omaha-area homes, especially additions and older homes, have crawl spaces or a mix of basement and crawl space. Radon from a dirt or gravel crawl space floor needs a different approach.

Sub-membrane depressurization

A heavy plastic membrane (vapor barrier) is laid over the crawl space floor and sealed to the walls and piers. A suction point under the membrane connects to the radon fan, which draws soil gas from beneath the plastic and vents it above the roof.

Mixed foundations

Homes with a basement plus a crawl space or slab addition may need suction in more than one area, often tied into one fan.

Extras that may be recommended

• Heavier membrane for crawl spaces used for storage
• Sealing crawl space vents and access doors
• Moisture control if the crawl space is damp

Related Radon Mitigation Topics

Frequently Asked Questions