The Tile Council of North America (TCNA) Handbook committee has gone to great lengths to provide guidelines and best practices that will help and protect the tile installer.
Most people will agree that buildings experience significant movement on a day-to-day basis. Accommodating this movement is crucial for a successful installation of ceramic, porcelain and/or glass tile.
Ceramic and porcelain tiles are as beautiful as they are functional, but they are very greedy when it comes to the space needed around them to absorb any movement.
According to the March 2017 American National Standards Institute (ANSI) specifications, new expansion joint patterns have been approved which allow formerly straight joints to follow new non-linear joint configurations.
Lippage unfortunately occurs when one tile edge is higher or lower than the adjacent tile. This topic is constantly being discussed because it occurs entirely too often.