How does prolonged shade affect the degradation rate of PVC outdoor sculptures?
Prolonged shade can significantly influence the degradation rate of PVC outdoor sculptures. While PVC is known for its durability, environmental factors like sunlight, temperature, and moisture play crucial roles in its longevity. Shade reduces direct UV exposure, which typically accelerates PVC breakdown by causing photo-oxidation. However, prolonged shade may lead to moisture retention, promoting mold growth or surface erosion over time. Additionally, lack of sunlight can slow the evaporation of water, increasing the risk of chemical leaching or plasticizer loss. To mitigate degradation, proper ventilation and periodic cleaning are recommended, even for shaded sculptures. Balancing UV protection and moisture control is key to preserving PVC outdoor art.
