What are the risks of using natural fibers like cotton in outdoor sculptures?

Using natural fibers such as cotton in outdoor sculptures presents several risks that artists and conservators should consider. Cotton, while biodegradable and aesthetically versatile, is highly susceptible to environmental factors. Moisture absorption can lead to mold growth, weakening the material over time. Prolonged exposure to UV rays causes fading and fiber breakdown, while temperature fluctuations may result in expansion and contraction, distorting the sculpture's form. Additionally, cotton is vulnerable to pests like moths and rodents, which can compromise structural integrity. Without proper treatments like waterproof coatings or UV inhibitors, cotton-based outdoor art may require frequent maintenance or early replacement. For long-lasting installations, synthetic alternatives or protective measures are often recommended.