Questions tagged [radon]

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7
votes
1answer
689 views

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 ...
3
votes
4answers
10k views

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 ...
2
votes
3answers
2k views

Vented vs unvented crawl space

I've asked this question before: What are the pros and cons of a vented vs unvented crawl space? However, now that I'm going to get air conditioning the question comes back again and again people ...
7
votes
2answers
5k views

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 ...
12
votes
4answers
675 views

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 ...
20
votes
3answers
4k views

What types of home radon mitigation systems have you used, and how well do they work? [closed]

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 ...

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