Ontario is the only jurisdiction in Canada where radon symptoms the builders' warranty on new residences consists of radon removal insurance coverage. If radon gas in your residence is in extra of 200 becquerels per cubic metre and protection lasts for up to 7 years, the warranty covers remediation to decrease radon levels.
Does opening windows reduce radon?
Opening windows improves air circulation and ventilation, helping move radon out of the house and mixing radon-free outside air with indoor air. Opening basement windows helps reduce negative air pressure, diluting radon with clean outdoor air.