In most environments, a thorough cleaning will be needed every two to three years. Spot clean only. Do not put cushions or shells in the washing machine. One of the best ways to keep outdoor fabrics looking good and delay the need for deep or vigorous cleaning is to hose fabrics off on a monthly basis with clear water. This practice will help prevent dirt from becoming deeply embedded in the fabrics and eliminate the need for more frequent vigorous cleanings. In most environments, a thorough cleaning will be needed every two to three years. Always remember to allow the fabrics to air dry after hosing it down.
We suggest that after outdoor fabrics are cleaned, and if they remain exposed to the elements constantly, that you re-treat your outdoor fabrics with a water-repellent treatment, such as 303® High Tech Fabric Guard™. More details: Sunbrella Cleaning Guide (PDF 25k)