In this image, the whole house is the “system.” The image depicts the “Stack Effect,” which is one of the primary causes of radon entering a home. The stack effect causes a partial vacuum to be created in the lower levels of a home. This partial vacuum literally sucks radon out of the ground and into the home.
This essay is about the two forms of radiation described in this course. Before taking this course, I did not understand the difference between ionizing radiation and non-ionizing radiation. I do now. I always thought that microwave radiation would be of the ionizing type. I now understand why radon, and its decay progeny are so damaging to human heath.
Hole in basement flooring created in preparation for future installation of sump pump lift station. This hole provides direct access into the home for potential radon gas. Recommend that a airtight cap be installed and sealed with silicon caulk until pump is installed. Following installation, recommend that a new cap modified to accompany piping and wiring be installed and sealed.
Crawlspace Hazards and Inspection: This is truly a potentially dangerous part of the home inspector’s job. The inspector must be very aware of his or her surroundings and make a conscious choice of whether or not it is safe to enter the space.
When a Radon Service Provider, specifically the mitigation service provider, has installed a RMS or Radon Mitigation System in the home with Electrical Components that are separate on their own circuit, if the load is greater than 50%, the legend in the electrical service panel (regardless if main or sub-panel) should be properly labeled. The unit installed should also be properly labeled as a Radon Mitigation System with the installers Name, Phone Number, EPA RPP ID number, and the date of installation that is legible from 3 feet away.
InterNACHI has provided us an article citing the EPA’s Buyers and Sellers Guide to Radon. The common sense and easy to follow steps are included in this consumer targeted article to educate the average consumer a little bit about Radon, how you can have your home tested for Radon, EPA recommendations and recommended action levels, who the consumer should contact for testing and mitigation, as well as proper advice for first time homeowners that are not familiar with Radon and the EPA’s efforts to reduce indoor Radon levels in residential structures via voluntary efforts from homeowners.
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Radon is a gas that inspectors test for. It is a bad gas that can cause cancer. Cancer is something no one wants, for the most part. The only way to test for radon is to test for radon. If you have radon you should get rid of it.
Radon is a gas that inspectors test for. It is a bad gas that can cause cancer. Cancer is something no one wants, for the most part. I mean all cancer causes is suffering and heartache. Don’t like cancer. Thank you.
Physical and chemical properties of radon
Radon belongs to noble or inactive gases. The radon atom, like other rare gases, rarely reacts, so it can spread freely through all gases because it is chemically inactive. Radon is a colorless, odorless gas that can not be flattened with human senses. Therefore, its detection depends mainly on the detection of the radiation accompanying the disintegration and disintegration of its offspring.
It is worth noting, that radon average decay in water and some other fluid.
Physical and chemical properties of radon
Radon belongs to noble or inactive gases. The radon atom, like other rare gases, rarely reacts, so it can spread freely through all gases because it is chemically inactive. Radon is a colorless, odorless gas that can not be flattened with human senses. Therefore, its detection depends mainly on the detection of the radiation accompanying the disintegration and disintegration of its offspring.
It is worth noting, that radon average decay in water and some other fluid.
When buying a home it is recommended by the EPA for the home to be tested for radon gas. Radon gas is the 2nd leading cause of lung cancer. If a home has a radon level above 4 pCi/L it is recommended that the home be assessed for mitigation.
Noted a sump pump in the basement that was not sealed at the time of the inspection. The home has a radon mitigation system in place and has a documented history of high radon measurements in previous tests. It is recommended that sump pumps and other vulnerable areas of the foundation be sealed to aid in the efficiency of the radon mitigation system in place.
The photo atached is of an installed radon mitigation fan. As you can see the fan is installed on a verticle run of the vent piping. It is installed outside of the home. The vent piping is supported to the structure. What you cant tell from the photo is how well it the opening through the home is sealed. Other then that the installation looks fine.
The importance of testing for radon in all homes can not be overstated. Even if your neighbors home tests well under the 4.0 level that doesnt mean your home will test the same. Each home is different and can test differently.
This is a look at my Sun Nuclear 1030 Sentinel set up. Posted right below my continuous radon monitor is the EPA guidelines for closed house protocol. I also include a yellow warning sign that warns residents of the property that a radon test is in place and active.
while reviewing the Air Pressure and Radon Entry gallery image I learned that the most predominant driving force nationally is the stack effect in regards to radon levels and temperature induced pressure differentials. When the indoor air is warmer than the outside air, it rises and exfiltrates through the upper portion of the house.
Alpha Track Detectors: Radon diffuses into the opening of the container striking the film detector strip which leaves sub-microscopic damage. The lab then submerges the film into a caustic solution which makes the radon damage to the film more apparent for reading/calculation.
Ant Inspection: This article covers various facets of ants such as social and nesting behavior, prevention, and distinguishing from termites. This article is centered mostly upon carpenter ants and the damage they can cause inside the home. Methods for detection and exclusion/prevention are discussed.
