Aluminum is easily maintained in the first few years. After that the color may fade or paint may peel, blister or crack. Aluminum should be watched for dents, which should either be repainted or the panel replaced. Aluminum may need to be cleaned to remove dirt, grass, or mildew. Pressure washing aluminum is possible but should first be done with plain water on low pressure. If low pressure doesn't seem to be making the area clean do a higher power test wash on an area that is less visible. The test wash is important because some pressure washers create enough pressure to break a 2 x 4. It is best to use a biodegradable detergent and hose it off with a light spray.
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