The short answer is that while you *can* temporarily use regular indoor cushions on your balcony or patio furniture, it is not recommended for long-term use, even if you are diligent about bringing them inside when it rains. Here’s a detailed look at the risks involved.
The primary threat to indoor cushions used outdoors isn't just direct rain; it's ambient moisture. Humidity, morning dew, and even intense sunlight can damage them. Indoor cushion fills, like cotton or down, are highly absorbent. They can trap moisture from the air, leading to a musty smell and, eventually, mold and mildew growth inside the cushion, which is difficult to remove. Furthermore, the fabrics used for indoor cushions are not designed to withstand UV rays. Prolonged sun exposure will cause the colors to fade quickly and weaken the fabric fibers, making them prone to tearing.
While bringing the cushions in during a storm protects them from a downpour, it doesn't address these constant environmental factors. The cycle of nightly moisture absorption and daily sun exposure will significantly shorten their lifespan. For a practical and durable solution, investing in cushions specifically designed for outdoor use is best. These cushions are made with quick-drying, mold-resistant fills and fabrics treated for UV protection, ensuring your furniture remains comfortable and stylish for seasons to come.