Radon mitigation system
norcam50
8 years ago
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Ron Natalie
8 years agonorcam50
8 years agoRelated Discussions
Radon Mitigation System Installation
Comments (2)We bought a house this year. Had the home inspector test it for radon. Measured 5 in our basement. Still trying to decide what type of mitigation to pursue but I like your idea of venting it through the flue. They say radon levels can vary from room to room (or different floors) and that these levels can fluctuate throughout the year. We didn't want to have to pay for more tests so we bought a radon detector that can be plugged into the wall 24/7. We plan to see how the measurements are on all 3 floors before we decide how to mitigate. I'll be watching this thread to see what others say. Any feedback about the type of detector I purchased would be helpful (thanks!). A link that might be useful: www.4radon.com/ssradeforinu.html...See MoreFinishing basement/radon concerns
Comments (1)You have room for improvement. All cracks should be sealed in some way. For the walls, foam board sealed with foil tape as your insulation, then caulk the tops and bottoms will do the trick. For the floors, caulk the cracks with concrete crack caulking. Broken up concrete should be replaced. Radon system can achieve greater pressure with a 3 inch pipe. Some install 4 or even 6 inch assuming greater airflow is what gets the trick done. Higher pressure is better for active subslab mitigation. If you have a French drain, often they can hook up a second radon fan to that and suck from that as well. Your current radon fan might need to be upsized. This is a double edge sword, you get more suction but the fan is louder so there is a trade off....See MoreRadon vapor barrier
Comments (5)First, has testing been done and a radon problem verified? Testing is rather involved, since the better tests require at least three samples and the areas being tested have to remain undisturbed for a day or so.Radon testing There are basically two types of radon mitigation systems, active and passive. Passive systems almost need to be installed during initial construction. Active systems have a fan which produces a pressure differential under the slab compared to above the slab. That draws the gas into the fan plumbing and it is exhausted outside the house. "In many cases, simple systems using underground pipes and an exhaust fan may be used to reduce radon. Such systems are called "sub-slab depressurization," and do not require major changes to your home. These systems remove radon gas from below the concrete floor and the foundation before it can enter the home." From this article Installing the mitigation system($600-$2,000) requires sealing all slab intrusion areas and cracks if a positive test indicates a radon problem....See MoreNeed advice: concerns with Radon
Comments (5)Radon levels fluctuate. So the 1.5 reading you got was the level reading right that minute (which is still very good by the way). We have had a radon mitigation system in our basement since 2004. We bought a meter that not only measures the reading at that minute, but also did a 30 day average. We recently finished our basement and had the mitigation company come out again and performed their old readings since the meter we bought was several years old. Turns out their readings were the same as what our meter showed. But in order to have more peace of mind, we had a new meter installed that has an app where we can look at an hour by hour reading if we so choose. It also does monthly averages. I will say since our basement has been finished, out readings are consistently right around 1, where before finishing they were around 1.5 to 2. The level before our mitigation system was installed was I believe 6. Edit to add that it also depends on what part of the country you live in. Colorado, for instance, has very high radon levels and you will likely never test below 1 no matter how good your system is....See MoreRon Natalie
8 years agoUser
8 years agolast modified: 8 years agoVith
8 years agolast modified: 8 years agonorcam50
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8 years agolast modified: 8 years agoVith
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8 years agoRon Natalie
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8 years agolast modified: 8 years agoVith
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