Tuesday, April 18, 2006

Does Radon Sealer Really Work?

Should radon sealer be used to remediate an indoor radon problem?
The answer is: Maybe. It depends on how radon is entering the building and the kind of radon sealer you plan to use.

Radon sealer basically falls into 2 categories:

1. The most common radon sealers are urethane based caulks. Never use silicon caulk as a radon sealer.

2. The second category of radon sealer is the penetrating concrete sealer. This effectively seals the concrete from water vapor and significantly slows radon that may be diffusing through the concrete walls or floor.

So what does all this mean?
Can radon sealers be used to significantly lower indoor radon concentrations? US EPA says "Sealing cracks and other openings in the foundation is a basic part of most approaches to radon reduction". However, EPA goes on further to say; "EPA does not recommend the use of sealing alone to reduce radon because, by itself, sealing has not been shown to lower radon levels significantly or consistently".

To find out more about this subject, see how to properly seal off your home from radon gas and finding the best radon mitigation systems.


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