A FREE Webinar.  Donations of any amount being accepted to support the work of the Maine Indoor Air Quality Council.

Thursday, June 18, 2020
2:00-3:00 p.m. (EDT)


Program Overview

Program Schedule

About the Presenters

Continuing Education Credits

Support the Maine Indoor Air Quality Council


Program Overview

Join us on Thursday, June 18, 2020 at 2:00 p.m. EST to learn simple strategies to determine where, and when, moisture might get trapped in your building components (walls, roofs).  The session will include a tutorial on how to do your own simple calculations, as well as review other methods and tools available to the construction professional.  

Attendees are encouraged to “bring” an sketch of their wall/roof components to use as case examples during the post presentation Q & A. 


About the Presenters:

About William Turner:  Mr. Turner is the President Emeritus of Turner Building Science & Design, based in Harrison, Maine. He has a lifetime of experience with building diagnostics and construction. His original training was a B.S. and M.S in Mechanical Engineering. For 40+ years he has been involved with further learning with the designed, construction, commissioning, and expert witness for a wide variety of building systems located throughout North America. He has been asked to solve building science and air quality issues and conducted a variety of testing in most types of buildings and situations. He and David Johnston have successfully delivered many workshops for MIAQC and others.

About David Johnston: David Johnston is president of David Johnston & Co in Gorham, Maine.  After forty years of designing and building high performance homes in Maine he has decided to concentrate on teaching and consulting.  He is an Adjunct Instructor at Central Maine Community College for the past eight years, teaching Building Science and Plan Reading & Construction Cost Estimating.  He holds a Bachelor of Science degree in Industrial Education.  He serves on Advisory Committees for the Building Construction programs at CMCC and at Westbrook Regional Vocational Center.

About the Maine Indoor Air Quality Council

The Calculating Dew Point webinar is free of charge.  However, we do ask that you consider making a donation of any amount to support the work of the Maine Indoor Air Quality Council.  What do we do?

There are many pollutants indoors that can make people sick: mold and moisture, radon, asbestos, lead, PCBs, carbon monoxide, volatile organic compounds, as well as contaminants in private well water.  Because U.S. citizens spend an average of 90% of their time indoors, there is significant cause for concern for the health and safety of our population.  In fact, the U.S. Environmental Protection Agency indicates that the #1 environmental health threat in the U.S. today is indoor air pollution.

The Maine Indoor Air Quality Council (MIAQC) is an independent nonprofit organization dedicated to creating healthy, environmentally-sustainable indoor environments through education, communications, and advocacy. The Council is the #1 educator in Maine of professionals of all types on practical strategies to design, construct, operate, maintain, investigate, and remediate buildings. We educate members of the public on strategies to improve the IAQ in their own homes. And we advocate in the public arena for a policy infrastructure that supports healthy IAQ for all buildings types, including homes, workplaces, and schools. We also raise funds to pay for fixing radon problems in low-income Maine homes.  

Donations will help sustain our work for the coming year.  What will that include?  Advocating for healthy indoor air quality provisions in the Maine building code and in energy efficiency and climate change initiatives occurring in-state. Pursuing policy goals around radon. Creating new relationships with residential construction groups so we can bring residential contractors the training they need to create healthy, energy-efficient homes. Mitigating radon in low-income Maine homes. Working with commercial designers and contractors on strategies to improve indoor air quality in large buildings. And serving as a resource for members of the public who struggle with the indoor air quality in their own homes.

Click here to donate.

Program Schedule

1:50 p.m. – Webinar site opens

2:00 p.m. – Program start

3:00 p.m. – Program end

Continuing Education Credits

Type of Credit# Credits
BPI1.0 credit Approved
Code Enforcement1.0 credit Approved
USGBCSelf-Report with Certificate of Attendance
EngineersSelf-Report with Certificate of Attendance


Have specific questions you want answered during the webinar?  Consider submitting them to the presenter in advance!  Email your questions to:  christy@maineindoorair.org no later than 4:00 p.m. on Wednesday, June 17, 2020.

Question about registration and donations can be directed to the office of the Maine Indoor Air Quality Council.  Call 207-626-8115 or e-mail christy@maineindoorair.org.

Register Here

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