Home Improvement Stack Exchange
Home Improvement Stack Exchange

Questions tagged [radon]

75 questions
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What types of home radon mitigation systems have you used, and how well do they work?

What types of home radon mitigation systems have you used, and how well do they work? Do recommended types of mitigation systems vary significantly with varying levels of excess radon? Does climate have any impact on the mitigation system of…
stack
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What should I know about radon levels at home? What levels are safe and do they affect resale value?

My wife and I are looking to buy our first home. We recently found one, but a report says the radon levels inside the home are unsatisfactory. I've never really been aware of radon levels in homes before, but of course, look it up and it's not a…
Ryan Hayes
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My radon manometer has a red reading, what should I do?

We purchased a home a few years ago and it has a radon mitigation system. I just happened to go downstairs and look at it and noticed this reading. What should I check? Should I be alarmed? EDIT Thank you for the link to the manual. The fan is on…
swasheck
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Should building a new house include considerations about radon?

By chance I saw that there are a lot of radon questions here and it got me thinking: Do I need to concern myself with potential radon levels when planning to build a new house? My question is based on long-term health considerations, and not so much…
Torben Gundtofte-Bruun
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Is there any level of radon in the home that is *immediately* dangerous?

I ask because when I purchased my home the level was 19 pCi/L, and on a recent retest it is 27.8 pCi/L. I plan on for sure getting this fixed within a month, but I'm wondering if there's any reason to make it priority to get it done sooner. Most…
Kevin K
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What can I do to mitigate radon while waiting for a full radon mitigation system?

Before people jump all over me, let me state; I am NOT trying to fool a test! We already had the tests done 2 days ago and it came back at 6.8 pCi/L, which is high enough to cause concern. The only reason we did this test is because my wife and I…
maplemale
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What is the best way to seal a French drain board due to high levels of radon?

The Radon level in my crawl space is above the threshold (~5.5) and the level in my basement is around 4. I'd like to install a radon mitigation fan that sucks air from the sump pump of a French drain system. The problem is that the French drain…
Peter Q
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Is this pipe in my basement floor intended for radon mitigation?

This pipe emerges from the concrete slab floor in a corner of my house's full basement. I believe it's a 4" polyethylene sewer pipe (narrow walls, black interior, white exterior). I can't tell if it's perforated or not below the surface. As you…
Michael H
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Water Noise When Radon Fan is On

I've got a radon fan installed in my basement, but no sump pump. Starting a few days ago, I've started hearing a constant gurgling or bubbling sound from a basement wall that is 15 feet from where the radon fan is. This has me worried we might have…
Craig
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Radon system water leak in attic

In my attic there is (what I think is) the fan part of a radon mitigation system. There's a lip, and water pools there, then overflows and gets water in the attic. It seems to be worse when it rains. We got a new roof a few weeks ago, and we just…
Sam H.
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Ice In Radon Mitigation System

I have a fan powered radon mitigation system installed in my house. It was installed in 2016 and I have not had any issues with it until this winter. I live in northern Iowa where we have been getting some unusually extreme temperature variations…
cyclops
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Should I install an indoor or outdoor sump pump, or both?

I have a full basement in a cold climate (North Dakota). The previous owner had a raw hole broken out of the cement floor that must have served as an emergency sump pump hole. We haven't had water in 8 years and did landscaping around the house…
Mark Heinert
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What is the liquid in a Radon U-tube Manometer?

What is the liquid in a radon U-tube Manometer? I'm assuming that it's not water because of evaporation. Mine is clear in color, but I've been reading that it's normally blue or red. Is it a particular type of oil? Can it be refilled/replaced? …
Gbones13
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To mitigate radon, is a "positive" basement pressure possible during balancing?

Our basement has low-moderate radon levels, fluctuating typically between 1.5 - 4. We do have a subslab mitigation pipe, but it doesn't work great. For other air quality reasons, we decided to install an ERV in our basement. After the ERV is…
Adam Hughes
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Causes of radon in the basement of a newer home?

We are in the process of (maybe) buying a home. It is a newer (2007) home in Northern Wisconsin with an insulated concrete form (ICF) basement in red clay. We just got the radon test back and the 2 day average is at 5.1 pci/l. I am not concerned…
TBP
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