Radon in the house

[Josiahbarn]

How can I prevent radon pollution during the construction of a new house?

 

[The Lazy L]

Keep enclosed basement ventilated with outside air.

 

[Caribou]

Put a layer of Visqueen under the concrete, if you have a concrete slab, or in the crawl space if you have one.

 

[Cnsper]

Or you can not worry about it and not seal your house like a ziplock bag.

 

[SheepDog]

Radon gas has to collect in a place to become hazardous. Ventilation is the #1 retrofit. In new construction an air barrier works well or a ventilated sleeve between the foundation and earth. If you have a crawl space all you need to do is allow adequate ventilation which is normally done for moisture anyway.

 

[Patchouli]

Some areas have too much radon. I would research as much as I could to find out if my house was in a high risk area and go above and beyond what would be "good enough" for ventilation if I got a poor or high level test result. My understanding is that radon gasses rise.
Have you had a test done?