Radon in an old house age does not predict the number
A 1920 house with a dirt floor or a rubble wall has wide paths to the soil. A 2020 house has fewer leaks: the radon that enters stays. Neither age is an exemption. Health Canada’s survey mixed eras inside the same health region.
Test the lowest lived-in room in the heating season. New homes. Retrofits.
The 4-day test is a first reading. The 91-day test covers the three-month minimum Health Canada asks for. Both are $59 before tax. Shipping, the return and the lab are included. Tax is extra. The PDF report goes out within 2 business days after the lab receives the detector.
Above 200 Bq/m³, mitigation starts with a quote. Gaz Radon is C-NRPP certified and ships kits across Canada. See the Canada test page.
Sources
