What is the width of joints designed for polymer modified tile grout installation?

The correct choice regarding the width of joints designed for polymer modified tile grout installation is based on standard practices that dictate joint spacing for optimal application and performance. Polymer modified tile grout is specifically formulated to enhance flexibility and bond strength, making it suitable for narrower joint widths.

The preferred width of 1/16 to 1/8 inch allows for a tight, clean grout line that can effectively accommodate slight movements in the substrate and maintain aesthetic appeal. This range minimizes the amount of grout needed and reduces the potential for cracking while providing sufficient room for grout application and ensuring proper adhesion between tiles. Consequently, joints that are too wide could lead to issues such as cracking and unsightly gaps, which polymer modified grout aims to mitigate.

Standards established by the Tile Council of North America (TCNA) and other industry guidelines highlight this range of joint widths for compatibility with polymer modified grouts, emphasizing the importance of following these standards for a successful installation.