Turkeys Country Tuscany Travertine can be used in exterior applications in humid climates. Travertine is a natural stone that is durable and resistant to weather and humidity. However, it is important to note that proper care and maintenance is necessary to ensure its longevity and appearance. This includes sealing the stone properly to protect against water penetration and regularly cleaning it to prevent the growth of mold or mildew. It is also advisable to consult with a local expert or contractor who has experience working with this specific type of stone in humid climates for the best recommendations and guidelines.