MAC Seminars: Better Masonry Walls and Tornado Shelters Words: Gary PorterJoin us Wednesday, December 7th for two great seminars in one morning event. Both seminars are geared toward architects, structural engineers, building code officials, distributors and mason contractors. The first seminar, “Designing a Better Masonry Wall,” will review the evolution of masonry wall design and construction from solid walls into today’s cavity walls. Attendees will: (1) learn what types of masonry reinforcing and their placement are best for today’s walls, (2) understand why truss and ladder reinforcing has evolved into adjustable metal tie reinforcing, (3) grasp the basics of adjustable metal tie design and installation as required by the building code, and (4) review how flashing, mortar collection devices and weeps work together to control moisture in a cavity wall. The second seminar will be “Dos and Don’ts of Tornado Shelter Design.” This presentation addresses many of the major issues for designers to consider during the design process, from broad conceptual considerations down to the smallest of details, with an emphasis on masonry shelters. The cost is $30 per person. You can register online at www.masonryadvisorycouncil.org/seminars or by calling 847-297-6704.