https://www.radonlistserv.org/categories/1/rn-mitigation/feed.rss Tue, 14 Apr 2026 09:07:09 Z Rn Mitigation - Radon ListServ en https://www.radonlistserv.org/discussion/317/the-conflict-between-radon-barriers-and-treating-for-subteranian-termites Wed, 09 Oct 2024 19:50:31 Z Jeff Miner 317@/discussions I have a friend in the pest control and termite business who is against radon treatment because it makes his job of treating homes for subterranean termites and carpenter ants so difficult. He has to pull back the radon barrier cloth from the foundation wall in order to insert his chemical... https://www.radonlistserv.org/discussion/310/problem-house Fri, 29 Mar 2024 11:33:38 Z Scott Bacon 310@/discussions I have a house that we originally mitigated about 12 years ago. I was contacted by the owner a few months ago as her Airthings was reading 14 pCi/L. We added 2 more suction points to the original system. This brought the level down to 7 pCi/L. We then conducted a bucket test on the concrete which... https://www.radonlistserv.org/discussion/312/c-nrpp-radon-mitigation-course-kamloops-bc-canada Mon, 22 Jan 2024 20:33:33 Z Pam Warkentin 312@/discussions Are you interested in the Canadian method of radon mitigation? Join us in beautiful Kamloops, BC for a radon mitigation course with Colin Dumais. This course follows Health Canada's scientific approach to radon mitigation, ensuring you're equipped with the knowledge and skills to excel in this... https://www.radonlistserv.org/discussion/307/source-for-explosion-proof-fans-for-ssds Mon, 18 Sep 2023 20:18:34 Z Tom Weatherly 307@/discussions I am searching for a good manufacturer for an inline fan that is rated for combustible vapors. The bid requires that it meet National Electric Code (NEC), Class 1, Division 1, Group D specifications. I would like to find one that does not require a large enclosure, something on the order of 12 to... https://www.radonlistserv.org/discussion/305/another-engineering-marvel Tue, 22 Aug 2023 20:13:03 Z Henri Boyea 305@/discussions Back again! Maybe the "best" homeowner installed "radon mitigation system" I have seen yet. Yes, it was done by an Engineer; as always! https://www.radonlistserv.org/discussion/302/is-this-a-joke Sun, 20 Aug 2023 00:28:49 Z Robert Burns 302@/discussions https://storables.com/articles/how-to-install-radon-fan/ I would be critical of the fan in the crawlspace but since it is mounted backwards, among all the other issues, I don't know whether to laugh or cry. https://www.radonlistserv.org/discussion/304/nrpp-measurement-exam-is-unavailable-at-this-time-until-october Mon, 07 Aug 2023 14:36:17 Z Michelle Festa 304@/discussions This topic is also important to Mitigators, so I am also posting it here. This is from the NRPP website. NRPP Exam Security Update: Last Update: July 17, 2023 NRPP was recently made aware of a breach in the security of the RMP (Radon Measurement Professional) and RMFT (Radon Measurement Field... https://www.radonlistserv.org/discussion/299/tricky-crawlspace Mon, 06 Feb 2023 17:19:04 Z Henri Boyea 299@/discussions Reaching out to the Brain Trust here.... I have a house on a tall crawlspace testing 5.3 pCi/L in the living area. The kicker is that the crawlspace is encapsulated (well sealed) and has an ASD system with plenty of perf pipe, a 4" vent pipe, and a RadonAwayXP380 fan capable of moving close to 500... https://www.radonlistserv.org/discussion/293/frozen-radon-systems Tue, 27 Dec 2022 16:03:13 Z Ryan Fox 293@/discussions Just a few general questions, since I don't really think about this much. I hardly ever get any calls from the public about it, though I did get one today. What do most mitigators recommend to do in the event of a radon system being blocked by snow & ice? Do you advise the client to turn the system... https://www.radonlistserv.org/discussion/278/mitigation-company-serving-pocahontas-county-west-virginia Mon, 26 Dec 2022 20:40:17 Z Rob 278@/discussions Hi all, can someone recommend a mitigation contractor that serves Pocahontas County, West Virginia. Specifically, the Snowshoe resort area. Thanks! https://www.radonlistserv.org/discussion/287/sink-holes-post-tension-slabs-and-radon-trifecta Wed, 23 Nov 2022 16:05:37 Z Doug Taylor 287@/discussions I'm working on a 12,000 sq foot post tension slab in an area which has an extensive cave systems and this particular site has had many sink holes filled. The slab does not have a traditional footer system but does have numerous thickened slab areas. 57 (3/4 inch) stone is below most areas and... https://www.radonlistserv.org/discussion/280/are-these-changes-needed Mon, 17 Oct 2022 17:27:46 Z Randy Weestrand 280@/discussions I’m troubled by changes to the mitigation standards that are currently in the review process, or were recently approved. Are these changes needed, or are we watching a case of “Rule Makers Gone Wild”? 1. A proposed revision to the mitigation standards is currently under review until March 20 at... https://www.radonlistserv.org/discussion/286/our-system-needs-service Thu, 13 Oct 2022 13:14:41 Z Henri Boyea 286@/discussions Received an email stating: "We need someone to take a look at our radon mitigation system. It needs maintenance and possibly repair." I asked for more info, and was sent these photos. I think I figured out why the system isn't working! https://www.radonlistserv.org/discussion/273/hands-on-radon-training-course-feb-14-16-2022 Thu, 13 Jan 2022 17:01:40 Z Jesse Green 273@/discussions Hands-On Radon Training Course - Feb. 14-16, 2022 During this 3-day course, we will engineer and install a radon mitigation system in a single-family home in Plymouth, Minnesota. So come ready to learn and get your hands dirty. Jesse Green with American Radon Mitigation leads this course. Click... https://www.radonlistserv.org/discussion/268/plastic-shortage-alternative-pipe-materials Fri, 29 Oct 2021 03:28:43 Z Tom Weatherly 268@/discussions Schedule 40 PVC pipe prices are increasing drastically in my area of Northern VA/Washington DC. https://www.supplychaindive.com/news/resin-costs-plastic-manufacturers-industrial-buyer/605793/ I am curious about the effect elsewhere. As I have to raise prices, I wonder if other mitigators are... https://www.radonlistserv.org/discussion/265/house-from-heck Wed, 06 Oct 2021 13:35:49 Z Henri Boyea 265@/discussions I would like your assistance. I have a Client who has a fairly small home with an ASD system, and rents one side of the basement to a tenant. The Renter did a radon test which came back at 5.6 pCi/L and moved out until levels can be brought lower. After speaking with me, Client decided he had more... https://www.radonlistserv.org/discussion/105/ask-this-old-house-radon-in-water-system-spitting-water Wed, 22 Sep 2021 04:52:25 Z Larainne Koehler 105@/discussions FYI - check out this segment on Ask This Old House - Season 16 - Episode 15 It was a little slow in loading for me. Would have been nice to know how high the radon in water levels actually were. https://www.thisoldhouse.com/watch/ask-toh-spitting-faucet-painting-101 https://www.radonlistserv.org/discussion/237/alarms-are-mandatory-now-on-radon-systems Fri, 26 Feb 2021 14:46:01 Z Randy Weestrand 237@/discussions Enforcement of the system alarm requirement (SGM-SF-2017 Soil Gas Mitigation Standards for Existing Homes 9.2.2) is creating discontent in Minnesota. Are they alone? The following email was sent to all 120 Minnesota mitigation licensees with a publicly available email address. The response follows.... https://www.radonlistserv.org/discussion/240/slate-tile-and-antique-radios-as-a-radon-source Wed, 10 Feb 2021 11:48:11 Z Randy Weestrand 240@/discussions Can I pick your minds a little? An old mitigation system in a one story with basement is no longer working. We installed it in 2003. It had a partial drain tile system, so we didn’t do any communication testing. The post mitigation test was 3.6 with a HP190, and then 2.3 with a HP220 and everyone... https://www.radonlistserv.org/discussion/243/covid-19-and-radon Wed, 10 Feb 2021 11:37:54 Z Daryl Festa 243@/discussions From the very beginning Covid-19 has been known as a virus that attacks the respiratory system. There has been much reporting that there can be permanent damage to the lungs of individuals that have contracted Covid-19. A question that we need to be asking as an industry is whether or not the...