Which factors influence the spacing of movement joints besides tile size?

• A. Tile color.
• B. Time of day.
• C. Substrate movement and manufacturer guidance.
• D. Tile brand.

Answer: (C)

Movement joint spacing is determined by how much the substrate and tile system are expected to move or deflect in service, and what the tile manufacturer recommends based on their product and installation method. Substrate movement—caused by temperature and moisture changes, settling, and any structural deflection—applies stress to the joints and can lead to cracks if joints aren’t placed to accommodate it. Manufacturer guidance provides tested, specific spacing for a given tile size, thickness, and substrate conditions to prevent cracking and bond failures. So, beyond tile size, how much the substrate can move and the manufacturer’s installation guidelines are the key factors. Factors like tile color, time of day, or tile brand don’t influence joint spacing.