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Tuesday, September 19, 2017
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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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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 from 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 include a post mitigation radon test 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...
 

Radon Resistant New Construction Guidelines

  • Before the concrete floor is poured in the basement additional weeping tile lengths are installed in the gravel (usually 2-3 additional runs) crossing the floor area and connecting to the drain tile located on the inside of the footing.
     
  • Next the radon pipe (3"or 4" PVC) is installed in a location that will allow the pipe to run through an interior wall to the roof. The efficiency of the system is greatest if the pipe can be run straight to the roof with no horizontal runs. A "T" fitting is glued on the bottom of the pipe and the drain tile is is fastened to it.
     
  • After the floor is poured urethane caulk is used to seal all cracks and expansion joints, and the sump pit is completed with a sealed lid.

  • Where the pipe exits the roof it must at least 10 feet from any windows that can be opened. The radon pipe needs to be at least 12" above the plane of the roof.
     
  • Finally have the electrician place an outlet in the attic less than 6 feet from the radon pipe. If a fan is needed in the future you are all set to just plug it in.

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.

Canada Radon is a proud member of:

C-NRPP AARST HRAI CARST