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To maintain vinyl siding, homeowners should regularly clean it with mild soap and water, inspect for damage, and promptly repair any issues. Avoid using high-pressure washing and keep sharp objects away to prevent scratches. Check for mold or mildew and clean with a mixture of water and mild detergent. Take preventive measures to avoid fading, such as minimizing exposure to direct sunlight and using color-safe cleaning products. With proper maintenance, vinyl siding can retain its appearance for years.

You cannot install clapboard siding on a bare, unprepared surface. Clapboard siding requires a clean, sturdy base made from plywood or similar materials, sometimes called backerboard. Then, it needs an underlayment or sheathing, a moisture membrane to help protect the exterior wall.

Note that sometimes clapboard siding is caulked as it’s installed for additional protection. We don’t suggest this: Caulking the siding can trap moisture inside the clapboards and lead to moisture damage over time. The siding needs some space to “breathe,” especially in rainy weather.

To clean painted aluminum siding, use a mixture of mild detergent and water applied with a soft brush or sponge. Rinse thoroughly with a garden hose to remove soap residue. For stubborn stains, cleaning aluminum siding with a power washer on a low-pressure setting can be effective. But avoid using high pressure, which could damage the paint.

While you can perform minor siding repairs or even install it yourself over small areas, it is generally best to hire a professional siding company. Siding installation is a time-consuming and complicated process that requires specialized tools and experience. Most homeowners lack the skills to ensure proper alignment, weatherproofing, longevity, and durability, especially for more complex jobs like vertical siding. The money saved on a DIY project may not be worth the time and potential risks of improper installation.