When the topic of expansion joints is discussed, it many times causes confusion. Are they required? Who is responsible to design them? How are they to be installed and how often do they repeat? The questions need to be answered before installing any expansion joints.
EJ171 of the TCNA Handbook makes this statement, “Perimeter and field movement joints within a tile installation are essential and required.” ANSI A108.02-4.4.2 further states, “Movement joints are a requirement for tilework” followed by this note, (See A108.01-3.7) which fully describes the parameters of all tilework expansion joints.