During Existing Masonry Night School: Assessment, Maintenance, and Repair of Transitional Masonry Structures, instructors will discuss the most common issues in assessing, maintaining, and where needed, repairing masonry cladding systems constructed in North America between the 1880 and 1945.

This session will discuss the typical masonry exterior wall systems, commonly referred to as transitional masonry wall systems and how to identify them. These wall systems combine aspects of both load-bearing masonry and modern curtain wall systems having structural frames. The unique features of such construction are examined along with how these systems work structurally, how they deteriorate, and how they manage water, temperature, air, and vapor transmission. Knowing how these wall systems behave will assist in determining what repair methods and procedures to use.

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About the Presenters

Tom Elliott is the Director of Industry Development and Technical Services with the International Masonry Institute. He began his career in the masonry industry in 1984 as an apprentice bricklayer and has been a member of Bricklayers Local #5 Ohio ever since. He has worked as a foreman and field superintendent on larger unit masonry projects during his career in the field and has been the recipient of several craftsmanship awards for his work. As a project manager, Mr. Elliott was involved in some high-profile masonry restoration projects in which he supervised the terra cotta repair and replacement on many historical buildings. For seven-years, he and his wife operated a mid-sized mason contracting business which provided him insight on the business side of the trade.

For the International Masonry Institute, Mr. Elliott coordinates activities in Ohio, Michigan, and Northern Kentucky, promoting masonry to a wide variety of audiences including owners, contractors, architects, engineers, and craftworkers. Tom is actively involved in several organizations including the Construction Specifications Institute (CSI), The Masonry Society (TMS), and The International Masonry Training and Education Foundation (IMTEF)

Brian E. Trimble, P.E., LEED AP, CDT, FASTM, is the Director of Industry Development and Technical Services at the International Masonry Institute. He has over 30 years’ experience in the masonry industry, assisting design professionals in the design of masonry structures. He is a frequent lecturer to local, regional, and national construction industry groups. He has authored many articles and papers on various masonry subjects. Mr. Trimble started his career with a brick manufacturer and worked at the Brick Industry Association for over 20 years serving in various positions. For the International Masonry Institute, he coordinates activities in the Western PA and Western NY areas promoting masonry to a wide variety of audiences including owners, contractor, architects, engineers, and craftworkers.

Mr. Trimble is actively involved in many organizations including the Construction Specifications Institute (CSI), American Society of Civil Engineers (ASCE), The Masonry Society (TMS), and the International Brick Collectors Association (IBCA). He is a Fellow of ASTM International.