Are you aware of the new requirements in the Ontario Building Code (OBC) for radon rough-ins?

In addition to licensing and homeowner protection, the HCRA also works to strengthen the homebuilding industry by helping builders stay current with technical knowledge and evolving requirements.

The updated OBC that came into effect on April 1, 2025, and updates to Tarion’s Construction Performance Guidelines (CPG) now address soil gas and radon mitigation. In response, the HCRA has developed this educational brief, with input from industry experts, to help licensees implement these changes.