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  #2446  
Old 4/24/18, 12:38 PM
Todd Hardin Todd Hardin is offline
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Join Date: Apr 2018
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Radon is a naturally occurring gas that can build up in a house and cause cancer. In order to educate your client on the dangers of Radon and to explain the strategies used to mitigate high levels it is necessary to understand the different routes that Radon can enter a building.

Advanced Radon Measurement Service Provider Course
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  #2447  
Old 4/24/18, 1:00 PM
Moranda Evans Moranda Evans is offline
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Join Date: May 2016
Posts: 939
Default Re: Advanced Radon Measurement Service Provider Course

A new hi-resolution illustration has been recently added to InterNACHI's free, online Advanced Radon Measurement Service Provider Course in the Geology of Radon section. For more illustrations related to radon measurement, visit our free, online Gallery for inspectors.

Advanced Radon Measurement Service Provider Course-radon-mineral-grains-jpg
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  #2448  
Old 4/24/18, 1:03 PM
Todd Hardin Todd Hardin is offline
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Join Date: Apr 2018
Posts: 12
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Modern building techniques make homes more energy efficient which is a good thing, but they also make homes less breathable which can lead to trapped moisture. One very important way of preventing trapped moisture is the proper installation of kickout flashing. Kickout flashing should be installed in the following areas, where a roof and wall intersect, where the wall continues past the lower roof edge, and where gutters terminate at the side of a chimney.

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  #2449  
Old 4/24/18, 1:07 PM
Armen Kotscharjan Armen Kotscharjan is offline
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Join Date: Apr 2018
Posts: 2
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The following discussion is based on the article titled, "Home Buyer's and Seller's Guide to Radon". I will be focusing mainly on radon safety concerns. You cannot see, smell or taste radon. But it still may be a problem in your home. When you breathe air containing radon, you increase your risk of getting lung cancer. The Surgeon General of the United States has warned that radon is the second leading cause of lung cancer in the United States today. If you smoke and your home has high radon levels, your risk of lung cancer is especially high. The EPA estimates that radon causes about 21,000 lung cancer deaths per year.The radon in your home's indoor air can come from two sources: the soil and your water supply. Compared to radon entering your home through water, radon entering your home through soil is a much larger risk.Testing is the only way to know if you and your family are at risk from radon. The EPA and the Surgeon General recommend testing all homes below the third floor for radon.

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  #2450  
Old 4/24/18, 2:25 PM
Lingbin(Sam) Wang Lingbin(Sam) Wang is offline
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Join Date: Apr 2018
Posts: 14
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The sump pump pit in the basement provide a easy route for radon gas to come into house. And cracks on the concrete slab floor we found in the basement too. Radon gas can enter house by these openings easily.

Advanced Radon Measurement Service Provider Course
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  #2451  
Old 4/24/18, 2:29 PM
Lingbin(Sam) Wang Lingbin(Sam) Wang is offline
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Join Date: Apr 2018
Posts: 14
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Lots of cottage in remote areas have their own water supply systems, private wells. Because water is from under ground very deep. Well water usually has a high radon gas dissolved inside. If we do not treat water and drink it. Cancer may develop.

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  #2452  
Old 4/24/18, 10:09 PM
Brian Aumack Brian Aumack is offline
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Join Date: Mar 2018
Posts: 10
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Here we see what appears to be a correct radon mitigation system installation. The fan and the vent pipe are installed on the exterior of the home. The vent pipe passes through the eave and terminates above the roof line.

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  #2453  
Old 4/25/18, 4:13 PM
Kevin Minto Kevin Minto is offline
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Join Date: Jul 2014
Posts: 37
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Pictured is a femto-Tech Laboratories model CRM-510LP precision airborne alpha radiation detection instrument based on the field proven pulsed ion chamber technology. The device is situated on a ladder 24 inches off the ground and over than 3 feet from any windows, doors or exterior walls in a lower level converted sub area.

Advanced Radon Measurement Service Provider Course
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  #2454  
Old 4/25/18, 4:43 PM
Kevin Minto Kevin Minto is offline
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Join Date: Jul 2014
Posts: 37
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Radon, after losing an alpha particle forms polonium which is the element that can actually cause lung cancer. Unlike radon gas, polonium is able to attach to the surfaces of dust or smoke particles that can become deeply lodged inside the lungs where the radioactive particles begin to radiate and penetrate the cells of the lungs which begins the process of carcinogenesis.

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  #2455  
Old 4/25/18, 6:36 PM
Brian Aumack Brian Aumack is offline
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This appears to be the correct installation of a radon mitigation system. The fan and the vent pipe are installed on the exterior of the home with the pipe passing through the attic space and terminating above the roof line.

Advanced Radon Measurement Service Provider Course
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  #2456  
Old 4/25/18, 9:52 PM
Carl Hoffman, HI1855 Carl Hoffman, HI1855 is offline
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Join Date: Dec 2011
Posts: 10
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This is an image of a Sun Tech continuous reading digital radon monitor. Note That the monitor is too close to the outside wall, and also too close to a return air duct. Both of these factors can affect the radon level reading. The unit was moved for appropriate clearances prior to being plugged in and started.

Advanced Radon Measurement Service Provider Course
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  #2457  
Old 4/26/18, 5:52 AM
nsrl nsrl is offline
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In the apartment I was inspecting, on the ground floor, I found an abnormal concentration of radon in the bathroom compared to other rooms. I could see that this fact was due to the presence of untreated water pipes isolated, coming from the underground rooms and that flowed directly from the walls of the bathroom.

Advanced Radon Measurement Service Provider Course
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  #2458  
Old 4/26/18, 8:47 AM
Jeffrey M. Dalton Jeffrey M. Dalton is offline
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Join Date: Mar 2016
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This image shows the combustion air intake on a current gas furnace. When this furnace was installed at new construction, this was an acceptable practice at that time. By pulling air from the interior basement area, the stack effect is greatly increased with the vacuum being greatly increased and causing more soil gas to be brought into the house. Although a mitigation system is present, by pulling air from an outside source, the effectiveness of the system would be greatly improved.

Advanced Radon Measurement Service Provider Course
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  #2459  
Old 4/26/18, 9:08 AM
Jeffrey M. Dalton Jeffrey M. Dalton is offline
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Join Date: Mar 2016
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Radon, "To Check or Not to Check". In the event of buying a new home, you always want to choose on the side of caution. Many times buyers look around the neighborhood and don't see any mitigation systems and think that there is no need to test because there doesn't seem to be any issues with radon in this area. Check it, the cost is minimal now compared to the health costs down the road. Radon is a carcinogen and has been proven to cause lung cancer. You visualize of that "man cave" in the basement, or that playroom for the kids, or even a home theater where you can entertain. Protect the ones you love, test for Radon, Have it mitigated if needed. No regrets!

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  #2460  
Old 4/26/18, 10:21 AM
Kent Pitt Kent Pitt is offline
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Join Date: Mar 2004
Posts: 58
Please Note: kpitt is a non-member guest and is in no way affiliated with InterNACHI or its members.
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This window is missing a piece of sill trim. The possibility for water migration is increased with the missing trim. It is recommended to have a qualified window technician take a look at the window and repaire the missing trim.

Advanced Radon Measurement Service Provider Course
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