Updated the Attic, Insulation, Interior Course with Info on Foam Insulation Hazards

We updated our free, online How to Inspect the Attic, Insulation, Ventilation and Interior Course in the section of Basement Wall Insulating and Finishing with information about fire hazards of exposed spray foam insulation (foam plastic) found in living spaces.

And we have an inspector article in our Library https://www.nachi.org/polyurethane-spray-foam.htm