Leaving your outdoor furniture uncovered throughout the entire year is generally a bad idea for its longevity and appearance. While it might seem convenient, constant exposure to the elements takes a significant toll.
Sunlight, specifically UV rays, is a primary culprit. It can cause fabrics to fade and become brittle, while wood can crack, warp, and lose its finish. Metal frames may become uncomfortably hot and their coatings can degrade.
Rain and moisture lead to other problems. They promote mold and mildew growth on cushions and fabric. For wood, moisture causes swelling, rot, and attracts insects. Metal furniture, especially iron, is at high risk for rust and corrosion when left damp.
Winter brings additional challenges. Freezing temperatures can make materials brittle. The freeze-thaw cycle can force water into cracks, expanding and causing further damage. Snow accumulation adds weight stress and prolonged moisture.
For minimal care, using high-quality, waterproof furniture covers is the absolute bare minimum protection. They shield from UV rays, rain, and debris. However, for optimal preservation, the best practice is to clean and thoroughly dry your furniture at season's end and store it in a garage, shed, or basement. If storage space is limited, consider stacking chairs and using robust covers rated for all-season use.
In short, while some very high-end, all-weather materials can withstand more exposure, proactively protecting your outdoor furniture will save you money on replacements and keep your outdoor space looking its best for years to come.