To prevent bathtub grout from cracking, it's essential to consider factors such as the type of grout used, the installation process, and ongoing maintenance. High-quality, flexible grout can withstand movement better than standard options. Additionally, ensuring proper sealing and regular cleaning can help maintain grout integrity. Temperature fluctuations and moisture levels also play a significant role in grout durability. Curious about the best products or techniques to keep your grout in top shape? Ask Improvi.ai for personalized guidance!