The Mayur Slate is a natural stone product commonly used for interior applications such as walls and flooring. While it can withstand some amount of moisture, it is not recommended for use in exterior applications in very rainy climates. Excessive moisture and constant exposure to rain can cause the slate to deteriorate over time, leading to cracking, color fading, and degradation.

For exterior applications in very rainy climates, it is better to opt for a stone material that has been specifically designed and tested for outdoor use. These materials are generally more durable and resistant to water damage.