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Traditionally, you place a layer of ⅜-inch foam board beneath aluminum siding. This gives you a smooth surface to which you can fasten the trim and siding. Beneath the foam board, you should have some kind of waterproof sheathing to further protect your home from water damage. It’s possible this sheathing is already under your current siding.

Vinyl is the most common shingle siding due to its rigid PVC design, longevity, affordability, and ease of installation. The next most popular types of shingle siding are fiber cement, which is in the mid-range for prices, and cedar shake, which is the most expensive. Consider the upfront cost, ongoing maintenance costs, and durability in your specific climate before deciding.

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.

Yes, new stucco siding can increase your home's value and curb appeal, similar to other new siding materials. Homeowners can expect an average return on investment (ROI) of around 70%. For an average stucco installation costing $5,700, this can translate to a value increase of nearly $4,000. The value can be further enhanced by choosing high-end textures or simulating more expensive materials like brick. Stucco is also a durable, fire-resistant, and versatile material that can last 50 years or more, making it an attractive feature for potential buyers, especially in hotter climates where its insulating properties are beneficial.