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Siding underlayment varies based on the type of material, but most siding is installed on top of a vapor barrier, a moisture-resistant house wrap, sheathing made from plywood or oriented strand board (OSB), and a layer of insulation sheeting. Having the correct underlayment is a critical part of properly installing siding and will protect your home from water intrusion, structural damage, and energy loss.

Engineered wood siding is still a relatively new type of siding, so it’s hard to say with certainty how long engineered wood siding will last. That said, homeowners should expect to get somewhere from 20 to 30 years out of their engineered wood siding, especially if they keep up with maintenance, including painting it every 10 years. Painting the exterior of a house costs an average of $3,150.

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.

Vinyl log siding is durable, rot-resistant, colorfast, and scratch-resistant, and it can last for an average of around 30 years. Some vinyl siding can last for up to 60 years with proper maintenance. You won’t need to repaint or restain this type of siding every several years like you would with wood, so ongoing costs and upkeep will be minimal. Although it’s relatively low maintenance, you should still wash your vinyl log siding twice per year. Doing so will increase its longevity, remove any mold, and retain your home’s curb appeal.