Education Session 4-B

Thursday, December 8, 2022
1:30 p.m. - 2:30 p.m.

Click here for presentation PDF

Jon Riley Image_edited.jpg

FIRST, DO NO HARM!  How to Holistically Improve an Existing Basement

Jon Riley
Casco Bay Insulation, Westbrook, ME

About this program:

Come learn how to navigate the risk associated with dragging an old, existing basement into the 21st century using the “Whole House” approach.  The presentation will discuss how to mitigate moisture and safely tighten up these often ignored and overlooked spaces that have a tremendous impact on occupant health and comfort.  The discussion will include:

  • How the “Stack Effect” impacts occupant health and comfort – it all starts in the basement!

  • How to mitigate moisture in existing basements from rubble walls to a freshly poured foundation

  • How to effectively insulate and air seal an existing basement or crawlspace

  • The steps taken to ensure indoor air quality inside the home is not negatively impacted by a basement weatherization project

Our presentation will include images and information from actual installations and projects from over the last 15 years.  Homeowners, builders, home performance contractors, and designers of all kinds are all encouraged to attend!



At this session, you will learn:

1.  How the stack effect amplifies the importance of basement moisture management

2.  How to mitigate moisture in basements and crawlspaces
3.  How to effectively air seal and insulate existing basements and crawlspaces
4.  When to test for radon and how to remediate radon in an existing basement
5.  How to ensure combustion safety in a weatherized basement

About the Presenter:

Prior to forming Casco Bay Insulation in 2009, Jon Riley was a HERS rater working with builders and homeowners to create durable, efficient, comfortable homes.   A firm believer in the holistic, “House as a System” approach, he continues to help builders and homeowners meet their home performance goals while keeping a close eye on moisture management and ventilation strategies.

Program Level:

Basic, Intermediate

Content Area(s):

Remediation & Repair, Building Science, High Performance Construction