Radon Mitigation

System Components

This is our simplified approach to understand Radon Mitigation, the parts of a system and how they can be varied.

Most homes have either an unfinished or finished basement and in some cases an additional crawl space.
Your basement floor is essentially a concrete slab, 4 to 6 inches deep, and Radon gas is trapped underneath the surface area of your house. It cannot rise unhindered into the air but accumulates and builds up pressure.
The most common Reduction System is therefore called

The Active Soil Depressurization System (ASD)

Radon reduction involves a lot of heavy drilling through concrete slabs and walls...

...bypassing waterlines and heating tubes.
The suction hole, size of the pipes and fan is determined after careful testing.

The Radon professional has all the tools for that.
Once the routing of the system is designed, the building can begin...up,up and away!

For an exterior installation we move the pipe to the outside, mount the switch and the fan, and continue up to the roof line.

The opening on top has a screen to prevent sqirrels, branches and leaves from dropping in. Some people paint the exterior pipe with the siding color to hide the white PVC.

Variations Of ASD

There are many ways to design an Reduction system and route it through the house or the garage...

...both end up in the attic where we install the fan and exit the system through the roof.

Going through closets inside the house is probably the smartest way to hide the system.

However, all closets in the house may not line up to accomplish that.

Crawl Spaces

Crawlspaces are a moneysaver for the building budget, but not for Radon Mitigation. They are difficult to tackle and seal properly.

Not all are so clean and easily accesable like these here. Caulking and installing a membrane in a low crawlspace (where there is clay, gravel or dirt) is the toughest part of the Mitigation.

Crawlspace before.... and after.

These are more examples of Radon installations

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