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Composite siding, with proper care, can last 30 years and sometimes more. Because its color has a tendency to fade, you might want to re-paint it every five years or so. Before purchasing composite siding, check the manufacturer’s warranty—you should have a long-term warranty to back up the quality of the product.

Avoid toxic chemicals that can leach into nearby lawns, as well as household ingredients like vinegar that can ruin paint and sealants. Instead, look for a very light detergent or a dedicated exterior siding cleaner. In a pinch, you can use a basic dish or laundry soap, but we suggest sticking with a dedicated cleaner.

If your siding is struggling with algae or moss, which indicates moisture issues, look for an outdoor cleaner that’s specifically designed to clear moss and algae stains. This is also a sign that you need to seal your clapboard against further problems.

You should plan to stain or refinish your home's cedar siding every three to seven years to maintain its appearance and provide maximum protection, though some estimates suggest a range of four to six years. The exact frequency depends on several factors, including your local climate, exposure to severe weather like direct sunlight, rain, and wind, the quality of the initial stain application, the type of stain used, and the overall condition and quality of the wood.

For homes in harsh climates with high humidity and significant sun exposure, you should plan on staining as often as every three years, while those in milder locations may only need to do so every seven years. For the longest-lasting protection in particularly harsh climates, consider using an opaque stain.

If you are looking for a lower-maintenance alternative, you might consider vinyl or aluminum siding. While the initial installation cost can be higher, they do not require as much upkeep and can offer more value over time, especially in areas with excessive rainfall or high humidity.

When moisture infiltrates your siding, it can result in deterioration and decay of the sheathing, cause structural damage to your foundation, and provides an ideal breeding ground for mold. Mold growth can lead to various health-related problems, such as itchy eyes, sneezing, allergies, and asthma. Mold and dampness commonly attract a wide range of insects, so if your siding has taken any kind of water damage, it could invite some unwelcome guests.