radon mitigation for new builds

https://alpha-wiki.win/index.php/Why_a_Sump_Pit_Radon_Cover_Matters_for_Your_Home

Radon mitigation for new builds means integrating a passive system from the start, like a perforated pipe under the slab connected to a vent pipe through the roof. This depressurizes the soil and prevents radon entry. It's far cheaper than retrofitting, and testing later confirms low levels.