About the author  ⁄ Tyler Witthuhn

Answer provided by Tyler Witthuhn, Project Engineer with the National Concrete Masonry Association. He manages research projects, handles technical inquiries, assists with technical publications, and participates as staff liaison to NCMA task groups and subcommittees. Jason Thompson, Vice President of Engineering for the National Concrete Masonry Association, is responsible for overseeing the technical activities, services, and research for the Association.

STRUCTURE magazine