Foundations – A Significant Pathway for Radon Entry

A building’s foundation can be a significant pathway for radon entry.  Four key factors can affect a foundation’s contribution to elevated radon levels in home:

1. Substructure type
2. Design
3. Construction details
4. Materials

There are five common foundation types in the United States:

1. Pier
2. Crawl space
3. Slab
4. Full basement
5. Combination