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  #2431  
Old 4/20/18, 3:41 PM
Jacob Livingston Jacob Livingston is offline
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The U.S. Surgeon General's health advisory cautioning on the dangers of radon appear to be drastically misunderstood by the general public. As the second-leading cause of lung cancer in America it would seem that more attention should be given to the testing and prevention of harm due to radon.

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  #2432  
Old 4/21/18, 7:26 AM
Gary Saxman Gary Saxman is offline
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Picture taken during Spring inspection with heavy rain and stormy weather conditions. Crawlspace shows evidence of active water infiltration. Horizontal crack and strong backs indicate previous repair of failing foundation wall. Strong backs significantly rusted at bottom from lack of primer and painting during installation. Joist insulation falling and in need of repair/replacement from heavy moisture damaged. Vapor barrier on grade displaced and in need on repair. Recommend structural engineer evaluate foundation wall. Recommend licensed contractor for repair/replacement of insulation and vapor barrier. Immediate problem is accumulation of water from exterior negative grading. Licensed contractor needed for evaluation and repair of water accumulation against foundation of home.

Advanced Radon Measurement Service Provider Course
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  #2433  
Old 4/21/18, 8:41 AM
Gary Saxman Gary Saxman is offline
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Radon Hazards: 2nd leading cause of death lung cancer deaths 21,000 per years. Smokers living in high Radon level homes, 4pcL, have 85% increased risk of lung cancer. Radon detector types Active and Passive: Active Radon gas detectors; continuous radon monitors and continuous working-level monitors. Passive radon gas detectors; charcoal canisters, alpha-track detectors, charcoal liquid scintillation devices, and electret ion chamber detectors. Most commonly used are charcoal canisters. Radon Mitigation System Costs: New home during construction $350 to $500. Existing home $800 to $2,500. Length of Radon Test: Short term 48hr 7Days; and Long term up to 1 year. Long term most reliable, when using short term if 4pcL 2nd test required then take average of both tests. Radon Sources: Soil 70%, well water18%, outdoor air 10%, building materials 2.5%, and public water supply (approx. %). Radon Mitigation in Water: reduced by aeration and charcoal filtration. Radon web sites: https://www.epa.gov/radon, www.radon.com, https://www.epa.gov/sites/production/files/2015-05/documents/hmbuygud.pdf, https://www.cdc.gov/features/protect-home-radon/index.html, https://www.cancer.org/cancer/cancer-causes/radiation-exposure/radon.html.

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  #2434  
Old 4/21/18, 6:49 PM
Jordan Thompson Jordan Thompson is offline
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I have chosen to write my 40 word minimum essay on the presence of the deadly Radon in common tap water. Left untreated or mitigated it can cause prolonged lifelong health and illness problems with those associated with drinking the water.

Advanced Radon Measurement Service Provider Course
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  #2435  
Old 4/21/18, 6:50 PM
Jordan Thompson Jordan Thompson is offline
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I have chosen to write my 40 word minimum essay on energy savings and efficiency in a common residential home. By turning off lights that are unnecessary or just plain useless. Do not leave fans on in rooms that are unoccupied.

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  #2436  
Old 4/22/18, 2:03 PM
Anthony Cooper Anthony Cooper is offline
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Join Date: Mar 2016
Location: Washington C H, Oh
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This crawlspace is in the processes of being retrofitted for radon mitigation. The walls have been sealed with 2in polyurethane foam, and the duct system has been sealed with mastic on all seems and joints. Next will be the installation of the perforated tile, terminated to the outside of the building and the sealing of the 6 mill plastic.

Advanced Radon Measurement Service Provider Course
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  #2437  
Old 4/22/18, 2:14 PM
Anthony Cooper Anthony Cooper is offline
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Location: Washington C H, Oh
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If you are planing to put your home on the market it is recommended that you have it tested for radon. If you have to have mitigation done keep all records on the work you have had done, This could be a positive selling point.

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  #2438  
Old 4/23/18, 11:29 AM
Jack E. Cooper Jack E. Cooper is offline
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This is a picture of an exterior radon discharge pipe. You will note that the termination of the pipe is above the eave. It is important for the termination to be above windows and other openings into the building to avoid re-entrainment.

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  #2439  
Old 4/23/18, 11:37 AM
Jack E. Cooper Jack E. Cooper is offline
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The image that my essay refers to is an architectural drawing of an active radon system. There are several details in the image worth noting: the pipe termination needs to be 12" above the roof and 10' from any other openings into the building that it is not above; the fan needs to be above (or outside of) conditioned space; and there needs to be an audible or visual signaling device installed on the system to notify the building occupants if there is a loss of pressure or air flow in the pipe.

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  #2440  
Old 4/23/18, 12:24 PM
Moranda Evans Moranda Evans is online now
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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 Health Effects section. For more illustrations related to radon measurement, visit our free, online Gallery for inspectors.

Advanced Radon Measurement Service Provider Course-genetic-damage-caused-radon-jpg
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  #2441  
Old 4/23/18, 5:19 PM
Garth Dorcy Garth Dorcy is offline
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At the time of the home inspection, the inspector observed an active sub-slab depressurization radon-mitigation system in operation. The vent fan was in the vertical run of the vent pipe. All positively pressurized portions of the system were located outside habitable spaces. There was a visible, audible system failure warning device, a junction box for power to the fan, and strapping secured the vent pipe. There were removable couplings on either side of the fan for service. Labeling was present on each floor and at the disconnect breaker.

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  #2442  
Old 4/23/18, 5:44 PM
Garth Dorcy Garth Dorcy is offline
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When advising home buyers about radon testing, the home inspector should educate the public on the importance of radon testing. The inspector can advise that radon is a cancer causing gas, that a home buyer should have the seller get the home tested for radon prior to purchasing the home, and that high radon results can be fixed. A home seller should have the home tested (and mitigated if necessary) prior to putting the home on the market. The test should take place at the lowest occupied floor of the house, placed were it will not be interfered with, the home should be closed (doors, windows, exhaust fans) for 12 hours before the start of the test until the test is complete, occupants should be advised to keep the house closed, and signs posted as a reminder at entries. The device should be away from drafts, high heat, high humidity, and exterior walls. Start and stop dates and times must be recorded, the device resealed at the end of the test, and returned immediately to the designated laboratory.

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  #2443  
Old 4/23/18, 5:46 PM
Armen Kotscharjan Armen Kotscharjan is offline
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This is an image of a continuous radon (CR) monitor mounted on a tripod stand used to measure indoor radon concentrations. This type of radon measurement equipment is considered to be an active device because it requires an electrical outlet to provide power to the unit during the duration of the test period. This type of monitor should be tested carefully before and after each measurement according to manufacturer's directions. The radon inspector should carefully verify that the input parameters are setup correctly, including the clock or timer, in addition to verifying the operation of the pump and flow rates to meet manufacturers specifications.The CR monitor should be programmed to run continuously, periodically recording the radon concentration for at least 48 hours. Guidelines and protocols should always be followed for CR measurements which state that closed-building conditions should be met and that measurements should not be made if the occupant will be moving during the measurement period.

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  #2444  
Old 4/24/18, 1:04 AM
Keith Coley Keith Coley is offline
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Join Date: Aug 2016
Posts: 17
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Radon mitigation exhaust pipe should extend above the roof line. This will allow for correct air flow and prevent damage to the siding soffit and fascia material due to excessive moisture. Contact a qualified contractor to make proper adjustments and repairs

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  #2445  
Old 4/24/18, 1:08 AM
Keith Coley Keith Coley is offline
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Join Date: Aug 2016
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When radon mitigation systems are installed in the basement level call cracks and openings should be sealed. The connection from the basement slab to be stem wall should also be sealed. This will prevent harmful gases from entering the home at this point and creates the correct draw of air below this point

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