C-16-109 - Radon Challenges - Gnarly Tales from the Field (CERTI-325)

Interpreting radon measurements or mitigating buildings with radon concerns is not always as easy we would like them to be. Experienced radon professionals from both sides of the profession occasionally will run across a situation that doesn’t necessarily fit the simple diurnal cycles that affect stack effect or houses that don’t adhere to the simple mitigation diagrams we often see in texts.
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This course addresses unique challenges to the radon professional including:


  • Buried Return Ducts
  • Untreated Adjacent Foundations
  • Wind Spikes
  • Working with Tight Soils
  • Highly Permeable Soils
  • Leaky Forced Air Ductwork
  • Inaccessible Crawlspaces
  • Emanation from Contaminated Building Materials
  • In-Floor Heating Systems
  • Post Tension Slabs


This course goes beyond simply identifying these concerns but actually presents solutions using real life case studies.  It also demonstrates the use of diagnostic equipment to aid one in identifying a problem and provides downloadable tools that the student can use for estimating pressure drop in mitigation systems, air flow as well as the significance of a radon emanation source.


Recorded with a live audience, the virtual student benefits from the formal instruction and contributions from the seasoned professionals who participated.


The format of the course combines video of presenter and attendees synchronized with powerpoint slides for an experience comparable to being “in the classroom” without the hassle, which has become a hallmark for CERTI courses.



Course Includes:

  • Video (can be paused and navigated via Table of Contents or Key Word Search)
  • Online Quizzes
  • Downloadable Course Certificate
  • 16 CE Credits  (Category 1)


  • Download/Streaming - No course materials will be shipped - everything you need is available to access and download online.
  • Materials Shipped - This option includes shipment by U.S. Priority Mail within the continental U.S. of course materials which includes a binder with the course manual and a CD.  You also have access to all course materials online.  Cost - $20 


Wednesday, 13 January 2021
JOSEPH said:
Christopher Kolb
Monday, 11 January 2021
David said:
Robert Fugate
Thursday, 07 January 2021
Joe said:
Thursday, 07 January 2021
Richard said:
Thursday, 31 December 2020
Zack said: This course has helped in my business and in my relations with clients and employees.
Dennis Buongiorno
Wednesday, 30 December 2020
Stephen said: I have only been mitigating for two years now, still learning. I learned so much from this class and it reinforced some other things for me. Highly recommend it.
Kelly Harrelson
Monday, 28 December 2020
Chris said:
Ashley Hazlett
Saturday, 19 December 2020
Marcus said: It was helpful hearing about problems other contractors found out in the field.
Russell Snyder
Thursday, 10 December 2020
Keith said:
Heidi Lanzelin
Saturday, 05 December 2020
Thomas said:
Wednesday, 02 December 2020
Bertram said:
Tuesday, 01 December 2020
Jack said:
Sunday, 29 November 2020
Jerry said: The best course I have ever taken!
Thursday, 26 November 2020
Corey said: Great, refreshing course!
Thursday, 26 November 2020
Daniel said: Great format and superb content. Very helpful!
Tuesday, 24 November 2020
Shane said: Excellent course.
Larry L Bernal Jr
Monday, 14 September 2020
Nathan said: Another great course. Doug always makes learning fun and memorable.
Bart Van Oostendorp
Sunday, 30 August 2020
Brian said: I recommend
Bob Engibous
Friday, 28 August 2020
Craig said: have taken many ce courses over the years, but this one was interesting and quite useful
Jonathan Kiefner
Wednesday, 29 July 2020
Daniel said: I recommend this course 5/5
Don Kibsgaard
Friday, 17 July 2020
Jerry said: Very knowledgeable with stories from the field that helps understand what can happen in the field. Doug is always willing to offer some advice when needed
Jacob Williams
Sunday, 12 July 2020
Ken said: well done
Nicholas Meyer
Sunday, 12 July 2020
James said: great course, thank you.
Tim Utterback
Saturday, 11 July 2020
Justin said: I recommend 5/5
Tuesday, 30 June 2020
Daniel said: 5/5 I recommend this course
Forrest A. Lines
Monday, 08 June 2020
JOHN said: all good
Jason McKinstry
Monday, 25 May 2020
Carlos said: Keep up the great work!
Allen Berglund
Monday, 18 May 2020
Matthew said: I recommend this course
Joseph Petrozola
Friday, 01 May 2020
Michael said: I recommend 5/5
Thursday, 30 April 2020
Matthew said: I recommend this course 5/5
Wednesday, 29 April 2020
Peggy said: Helpful
Jeffrey Molony
Sunday, 26 April 2020
Josh said: I recommend 5/5
Sunday, 26 April 2020
Jamie said: Gives great examples for how to critically think through problems with radon reduction.
Glenn Gray
Wednesday, 22 April 2020
Tom said: This course has value for a mitigator or a measurement tech who wants a better understanding of the the challenges of radon mitigation under extra ordinary circumstances. I thought is was great! Thanks you.
Scott Ross
Saturday, 18 April 2020
Fernando said: I recommend 5/5
John Salas
Thursday, 16 April 2020
Kathleen said: I recommend 5/5
Ronald Black
Friday, 10 April 2020
Daniel said: Great! Covered many topics not generally covered in these courses
Saturday, 04 April 2020
Rodney said: I recommend
Ray Spletzer
Monday, 30 March 2020
Ryan said: Doug referred me to this course and its helpful to have this material for future purposes
Mario Andrino
Monday, 30 March 2020
michael said: good
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