When discussing products such as grout and sealant, the placement of them seems pretty simple. Grout goes in the grout joints and sealant goes in the locations designated as movement accommodation joints by the design professional or engineer, but sometimes it doesn’t work out as planned.
Let’s look at what the American National Standards Institute (ANSI) and the Tile Council of North America (TCNA) Handbook tell us about movement joints, specifically interior inside corners.