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Siding and cladding are two popular exterior wall coverings that protect homes from the elements and provide insulation, but they differ in design and application. Siding is applied directly to a home’s exterior, providing some insulation and basic shielding from the elements. In contrast, cladding is installed indirectly over furring strips, creating a ventilated air gap for enhanced insulation and moisture control.

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.

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.

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.