Radon in Sherbrooke: 9.3% in Estrie, from 54 homes
The 2012 survey reports Estrie, not one street in Sherbrooke. 9.3% of the 54 homes were above 200 Bq/m³. The sample is small.
Oct 26, 2026
Scientific Articles
108 articles
Radon rough-in: the national code, then each province’s choice
The National Building Code describes a pipe and a gravel layer. Each province decides when that applies. The cap is not a test.
Oct 26, 2026
Basement windows and radon: the window well is not a test
A window well open to the soil can be a path. The detector does not go in the well or on the frame.
Oct 26, 2026
Heated floors and radon: the water pipe is in the slab
A heated floor does not remove radon. Anyone who drills the slab needs to know where the tubes run.
Oct 26, 2026
Older homes and radon: age does not predict the number
A stone foundation can let the gas through. A tight new house can hold it in. Both need a test.
Oct 26, 2026
Radon after a flood: retest when the basement is lived in again
Water can have opened the sump, cracked the joint or changed the soil under the slab. The old report no longer describes this house.
Oct 26, 2026
Waiting for a radon system: what actually lowers exposure
Opening the windows for an hour does not create an average under 200. Spending less time in the highest room does, while you wait.
Oct 26, 2026
How long it takes to install a radon system
A typical house is often done in one day. The roof, the slab and a second suction point stretch the job.
Oct 26, 2026
Check a radon professional: C-NRPP
The Canadian program certifies measurement and mitigation. A logo on a van does not replace the registry.
Oct 26, 2026
Home inspectors and radon: a 48-hour test is a screen
An inspection sees the house in one day. The 200 guideline is judged over at least three months. Both reports can stand.
Oct 26, 2026
A radon test before you sign: the offer window is not 91 days
A 4-day test can fit an offer condition. It does not replace the winter average once the house is yours.
Oct 26, 2026
Selling a home with radon: the report is a fact, not a stain
A result above 200 Bq/m³ is stated. It does not cancel the sale. The buyer wants the duration, the room, and whether a system is already ...
Oct 26, 2026
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