The answer to 'why is my grout dusty' is that grout can become dusty over time due to a few common causes. Grout is a porous material that can absorb dirt, moisture, and other contaminants, leading to a buildup of dust and debris. This is especially common in high-traffic areas or in homes with poor ventilation.
Some of the most common causes of dusty grout include lack of regular cleaning, improper grout sealing, and natural wear and tear. If the grout is not properly sealed or maintained, it can become more susceptible to absorbing dirt and moisture, which can then turn into a dusty, hazy appearance. Additionally, high-traffic areas or homes with pets and children may see grout become dusty more quickly.