How does UV exposure impact the color stability of marble outdoor tree boxes?

UV exposure significantly impacts the color stability of marble outdoor tree boxes over time. Prolonged sunlight causes the natural pigments in marble to break down, leading to gradual fading and discoloration. The ultraviolet rays accelerate oxidation and chemical reactions within the stone, altering its original hue. Additionally, thermal expansion from UV-induced heating can create micro-cracks, further degrading the marble's appearance. To mitigate these effects, consider using UV-resistant sealants or selecting marble varieties with higher weather resistance. Regular maintenance, such as cleaning and resealing, can also help preserve the aesthetic quality of outdoor marble installations. Understanding these factors is crucial for landscape designers and architects working with natural stone in open environments.