How do freeze-thaw cycles impact the surface texture of granite outdoor planters?
Freeze-thaw cycles significantly impact the surface texture of granite outdoor planters, leading to gradual weathering and potential structural damage. When water seeps into tiny pores or cracks in the granite and freezes, it expands, causing micro-fractures. Repeated cycles weaken the stone, resulting in a rougher, pitted surface over time. This process can also cause flaking or spalling, compromising both aesthetics and durability. To mitigate damage, choose high-density granite with low porosity and ensure proper drainage to minimize water retention. Understanding these effects helps in maintaining the longevity and appearance of granite planters in cold climates.