You can care about the tent fabric by following 3 simple steps: Cleaning: To clean the nylon fabric, use a soft bristle brush and a mild soap with water. WaterProofing: Most tents come with a waterproofing solution. But, with the time, you must refresh the fabric with durable water repellent coating. Storage: Make sure the waterproof tent is in a dry condition before folding and storing to prevent mildew build-up.