Should you vent a crawlspace/ Green Building & Sustainable Home Renovation Information & Advice

...and provide onlyananecdotal overview of how to deal with radon gas . We would recommend havingyourair tested for radon,and if it isabove Health Canada’s recommended safe levels ( 200 Bq /m³), please see our pages on radon gas mitigation incrawlspaces . Fixingadirt floorcrawlspace:All too oftenacrawlspa...

...ahoney isaradon mitigation specialist in the National Capital Regionand sits on manyadvisory boards including the CanadianAssociation of Radon Scientistsand Technologists , Canadian National Radon Proficiency Program , Canadian General Standards Boardand CGAStandards (Compressed GasAssociation). He worked with...

...ain floor, soyou'd need to factor space for that inyour new plans. Radon protectionas wellas radiant floor heating can be doneat this timealso. If the floor joistsare in reasonable conditionandyouwant to keep using thecrawlspacefor storageand mechanical systems, see our page on how to insulatecrawlspace...

...ater contaminated with high levels of radon gasand stomach cancer, colon cancerand some types of blood cancer.” - David Innes, Radon Environmental Radon evacuation stacks:Aradon stack can be passive oractive.Aproperly installed sub-slab barrierand passive stack isagreat start,and in higher riskareas o...

...ating systemacross Canadaandalso fittedasabudget heating systemacross the USA, so theyare well known. Theyare inexpensive to buyand relatively quick to install, which isalso probablyalarge part of the reason theyare so often chosen. Electric baseboard heatersare basically zone heaters. Theyare typica...

...ant to carefully sealair-barriers in homes , paying specialattention to joinsand breaks in the membranes – especially where secondary trades have passedafterair-barriers were fitted -and by using specialist sealing tape that stays stuck down properly. Last but not least – ifyoulive inacold climateareathat...

...aradon map is notaclear indication of safe or dangerous levels of radon gas inahome. For example, beloware official maps of the high-risk radon gasareas in the USAand Canada. EPAmap ofareas in the USat high risk of radon contamination in homes by State. Health Canadamap ofareas of Canadaat high ...

...anium ,and it is the radioactivity of it that makes itadanger to humans. Health Canadaestimates that radon gas is the cause of 10% ofall lung cancer deaths , foratotal of 2000 Canadian fatalitiesannually. Some of the highest levels in Canadaare found in Ontarioand West Quebec. The EPAin the USAalso hasa...