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Tuesday, December 18, 2018
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Radon Testing

Long or short term tests?

Radon testing is broken down into 2 different types of tests; long and short term. Long term testing is for any period greater than 90 days. Short term testing is normally a 2-7 day test with closed house conditions (exterior windows and doors closed with the furnace on auto).
Although Health Canada recommends long term testing for better accuracy, we also offer short term testing which follows the USA standard 48 hour testing procedure. This allows you to make an immediate decision based on the test results to reduce further radon exposure. To begin with a long term test could expose your family to increased levels of radon gas while waiting for the test to be completed. In the USA most testing is for 48 hours.

Many of Canada Radon's clients choose to perform some type of mitigation (reducing radon gas levels) to minimize the radon levels in their home, as even low levels of radon gas exposure can cause lung cancer.

Canada Radon Inc. offers short term and long term radon testing for your convenience. For a short term test we recommend performing a dual test as it provides a more reliable reading. Long term testing can be done as a single test or as a dual.  Simply follow the easy to read instructions and mail out the kit for analysis. The results are usually then forwarded to you, with any recommendations in a few days.

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You may want to consider going digital with a Corentium Home by Airthings, Radon Gas Detector, Canadian Version in Bq/m

Great for Long and short term testing!!         Order from Amazon.ca

The Corentium radon gas monitor is a state-of-the-art measuring instrument that combines ease of use and performance. The Corentium monitor allows you to take a reading of the radon levels and its LCD screen displays the average daily, weekly and long term concentrations. Powered by 3 standard AAA batteries, the monitor makes it easy to take measurements from one room to another in order to get an overview of the concentrations of radon in a home, workplace, school, a daycare centre or any other location. The Corentium monitor is also an essential tool to use when performing property inspections or when checking the operation of a radon mitigation system. The internal architecture of the Corentium monitor comes from advanced technology normally reserved for commercial-type detectors. Particular attention has been paid to the quality and protection of the internal components, allowing the use of algorithms for signal analysis that are more sophisticated. The Corentium monitor quickly adapts to its environment and eliminates inaccuracies related to external factors, allowing it to obtain the best accuracy in its niche. The Corentium monitor is guaranteed for one year and in normal home use, it requires no annual calibrations throughout its useful life, estimated at over 10 years.


Radon Mitigating (remember we travel throughout Canada)

Repairing a home or workplace to reduce the radon gas level is usually referred to as “mitigating”.

Once the measurement test is completed we will provide you with various options to reduce your families exposure to the Radon gas.

Mitigation pricing and options are based on each individual property. Canada Radon will analyze your home as to how it was built, type of foundation wall construction, basement floor finishes, presence of sump pit, high water table, topography, size, age of building, and what level of Radon Gas your test showed.

Canada Radon will then establish the most cost effective system to suit your personal goals. Typical building practices in Canada allow most mitigation systems to be installed near the existing sump pit. Due to the fact that the sump pit is attached to weeping tile which runs around the entire perimeter of your home sealing the sump pit and venting it to the exterior of the home is a great way to reduce radon and moisture in an existing home. If a sump pit is not an option then we will provide a soil permeability or connectivity test (if needed). This will show us the permeability of the gravel bed and/or soil under the concrete providing us with key information so that we can recommend the correct system for your home.
Should your home’s basement or crawl space have a dirt or rock surface rather than a concrete slab there are several additional steps that can be taken.

These systems can usually be completed in one day and are non-intrusive. Usually the sump pit is located in an unfinished part of the home and we pride ourselves in our workmanship and neatness. Respecting your home is very important to us!

Now here’s the silver lining…
Active soil depressurization has several other benefits that make your house a nicer place to live. The basement is drier, and most people comment within a few weeks that it smells different. The musty basement smell is gone. Active soil depressurization also removes methane gases and pesticides that may have been entering your home in the same fashion as Radon Gas.


Radon Mitigation
There are many types of mitigation systems that can be adapted to most site conditions. Mitigation fees usually cost between $350.00 - $4,000 (All systems GUARANTEED TO BE BELOW 100BQ/M3 which ensures that the new system is now protecting your family from Radon gas)

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New Construction

Radon resistant new construction is an excellent way to protect your new home from elevated levels of radon gas. Theses passive methods can reduce levels by about 30% and in the event that the levels are still elevated a radon fan is easily added with expected results usually below 100Bq/M3

Usually, with a little cooperation from subcontractors, the price can be less than $1000.00 to install.

So how is it done...
 

Builders can minimize radon entry into the home by:

Sealing the basement floor/foundation wall expansion joint
  • Installing a sealed plastic (polyethylene) membrane under the foundation floor slab or on top of exposed soil in crawl spaces. The membrane should be a minimum of 6 mil thick with taped seams. Research in other countries, such as the United Kingdom and United States, indicate that thicker membranes can be more effective at reducing radon entry.
  • Sealing the basement floor/foundation wall expansion joint. There are several options for sealing this potential radon entry point Note that proper preparation of surfaces to be caulked is critical to obtain an effective, long-lasting seal.
  • Sealing around all objects that penetrate foundation walls and basement floors, including utility lines for water, sewer, electrical, natural gas, or fuel oil. The centre of hollow objects that penetrate the walls or floors (e.g., metal support posts or masonry for fireplaces) should also be sealed or blocked.
  • Providing proper curing conditions. Moistening the slab or coating it with a special compound during curing will result in stronger, more durable concrete. If the weather is hot and dry or below freezing, your contractor must take appropriate precautions to ensure the cement is cured properly.
  • Using control joints in the concrete floor slab. While some cracks in the basement slab may be unavoidable, your contractor can direct cracks into controlled locations where they can be sealed.
  • Installing special traps in floor drains that allow water to drain but prevent radon from entering the basement
  • Using a sealed lid on the sump. Your builder may either purchase a sealed unit or field fabricate a sealed lid
 

Simple steps to give you peace of mind

Please remember this is a passive radon system. So when the construction is completed a radon test needs to be performed. But to fix a problem now is very straight forward and good results are easy to obtain. Also keep in mind that highest levels usually occur in the winter months, so you may want to do another test at that time as well.

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C-NRPP AARST HRAI CARST