The radon is produced by natural events beyond your control and (this is the
point) it keeps on coming regardless of what you do.

Thus, unless you either provide ventilation to dilute the stuff and get it
outside of your home, sealing will not have much effect.

That's why some folks with basement end up having holes drilled in the slab
and they draw air under the slab and blow that air outside in the hope that
the air will sweep up the radon before it enters the living space.

As another poster mentioned, if you have a crawl space, you can that space
ventilated a much as you can manage. You want that space as open at the
support needed for the home permits.

Putting plastic on the ground will not help much unless you arrange
ventilation under the plastic because, as said, the gas just keeps on
coming. You either create an easy way for it to vent to the atmosphere or
it will find its own way.

Some folks with very bad luck have found that there is so much local randon
than on "still" days, the outside air isn't good for the health.


** Posted from http://www.teranews.com **