Thank you Aram Sargisian for catching small error in our Green Building course.

http://www.nachi.org/greenbuildingcoursereleased2007.htm

Fixed.

Was that the one where the roofing shingles should “underly” the the lower part of the flashing of roof penetrations (eg: vent pipe boots)? It was listed as incorrect and no other answer seemed appropriate.:wink: