Follow these recommendations to clean the exterior of your home and to help maintain the beauty and value of your James Hardie siding. Wash down the exterior surfaces every 6 to 12 months with a garden hose to remove dirt and debris, gently clean your siding with a soft brush or wet soft cloth in a side to side motion in the direction of the plank siding.NOTE: Clean by working small sections at a time, starting from the top down to prevent dripping or streaking onto the cleaned area.A low-pressure water spray* and a soft medium bristle (non-metal) siding cleaning brush is most suitable for cleaning fiber cement products.NOTE: Acid and high-pressure washing can damage the fiber cement surface and is not recommended.Clean James Hardie ColorPlus products by using water and a soft brush or cloth. For stubborn dirt or stains, a mild detergent and a soft brush may be used.NOTE: For paint applied in the field, refer to the paint manufacturer for washing and maintenance requirements.