InterNACHI members can take Will Decker’s course for free at http://www.nachi.org/buildingsciencethermal.htm
Hey, it pays the bills, especially during the slow times.
Thanks for the promo, Nick.
William have you considered teaching others to teach your course? I would be interested.
I believe Will taught John or at least helped him write his course. Will knows his s h i t! He is the best instructor that I know that wears an orange shirt.