Radon Huntsville › Services › Crawl Space Radon Mitigation
Radon Huntsville helps Huntsville homeowners fix radon in crawl space homes; request a quote and a certified local radon professional will call you back. With a dirt or gravel crawl space, radon from the soil can move straight up into the house, and there's no concrete slab to draw suction from.
The usual fix is called sub-membrane depressurization. The contractor creates a sealed layer over the crawl space soil and then pulls the radon out from underneath it.
How sub-membrane depressurization works
A heavy plastic membrane is laid over the crawl space floor and sealed to the foundation walls and piers. One or more perforated pipes or suction points go under the membrane and connect to a fan that vents above the roof. The fan keeps the space under the plastic at slightly lower pressure, so radon goes out the pipe instead of up into your home.
Extra benefits
A well-sealed membrane also cuts down on ground moisture in the crawl space, which can help with musty smells and humidity. It doesn't replace proper crawl space drainage or ventilation if you have standing water, so mention any water problems when you request a quote.
What affects the price
- Crawl space size and height. Low crawl spaces take longer to work in.
- How many piers, pipes and obstacles the membrane has to be sealed around.
- Membrane thickness and whether walls are covered too.
- Homes that are part crawl space and part slab, which may need both methods.
Frequently asked questions
Can I just open the crawl space vents?
More ventilation can sometimes lower radon a little, but results vary and it can cause other problems like cold floors and pipe freezing. Sub-membrane depressurization is the method contractors rely on.
Can I still store things in the crawl space?
Usually, but a heavy-duty membrane holds up better if you'll be going in and out. Ask your contractor.
Related services
Radon Mitigation
Permanent systems that lower radon in your home below the EPA action level.
Sub-Slab Depressurization
The most common radon fix for homes on a concrete slab or basement floor.
Basement Radon Mitigation
Radon systems for full and walk-out basements common on Huntsville's hillsides.
Radon Testing
Professional radon tests and help choosing the right test for your home.
Crawl Space Radon Mitigation near Huntsville
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