What are the effects of UV exposure on the color stability of marble benches?

Marble benches are a popular choice for outdoor spaces due to their elegance and durability. However, prolonged exposure to ultraviolet (UV) rays can significantly impact their color stability. UV radiation causes the natural pigments in marble to break down over time, leading to fading or discoloration. This effect is more pronounced in darker or more vibrant marble varieties, as their pigments are more susceptible to UV degradation.

Additionally, UV exposure can accelerate the oxidation of iron minerals present in some marble types, resulting in yellowish or brownish stains. To mitigate these effects, regular sealing with UV-resistant products and periodic cleaning are recommended. Protective measures like shading or covers can also help preserve the bench's original appearance. Understanding these factors ensures better maintenance and longevity for marble benches in outdoor settings.