Heather slate is a durable and versatile material often used for exterior applications such as roofing, cladding, and paving. However, its suitability for very rainy climates depends on various factors such as thickness, surface treatment, installation methods, and maintenance.

United Kingdoms Burnt Heather Slate is typically treated to make it more resistant to water absorption and rainfall. This treatment can help protect the slate from excessive moisture and minimize the effects of a rainy climate, making it suitable for exterior use.

However, it is important to ensure proper installation and maintenance to guarantee its long-term performance. Proper drainage systems, sealing, and regular inspections are crucial to prevent water penetration and potential issues such as cracking or delamination.

If you are considering using Burnt Heather Slate in a very rainy climate, it would be advisable to consult with a professional to ensure that the specific product and its installation are suitable for this particular environment.