Answer: 

You should test for radon regardless of the age of your home. It is impossible to predict the level of radon in an individual home based on its age, or even based on the radon levels found in other homes in the community. Levels will vary from home to home, depending on the amount of uranium in the soil, the number and extent of cracks or gaps in the foundation, and how well ventilated the house is. The 2010 National Building Code includes provisions to reduce radon infiltration (installation of barriers between the soil and the foundation) and to make it simpler to set up an Active Sub-Slab Depressurization system if one is needed. Not all provinces and territories have adopted this aspect of the National Building Code yet, so check with your builder to find out more.

Answer Author: 
Erica Phipps
Answer Author's Email: 
erica@healthyenvironmentforkids.ca