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You can put new siding over clapboards, but it’s not recommended. Some sidings, like vinyl siding, can go over clapboards with sheathing like a foam layer in between. However, it’s best to remove clapboard siding if you plan on replacing it with new siding. Burying wood clapboards underneath new siding can create risks of rot and mold, or hidden insect damage. It can also create warping issues over time. Removing clapboards allows you to properly install a new sheathing, as well as clean up the exterior wall and look for any signs of damage.

Vinyl siding is the cheapest option in terms of upfront costs. The average cost to install vinyl siding is around $12,173, with certain types like vinyl shake, clapboard, or dutch lap costing as little as $2 to $3 per square foot. While vinyl is very low-cost, it may not last as long as natural materials or metal, with a typical lifespan of 20 to 40 years. In contrast, metal siding is more expensive initially but can save you money in the long run due to its longer lifespan, which is often double that of vinyl. It's recommended to consult a siding professional to determine if the lowest-cost option is the best material for your specific home.

The best siding to cover brick is vinyl or metal siding. Vinyl is low maintenance and affordable, while metal is highly durable and offers some of the best insulation on top of brick. Fiber cement is another great option. Though you can install wood siding on top of brick, it’s not as ideal.

You should restain or refinish your home's cedar siding every three to seven years to maintain its appearance and ensure maximum protection. The precise frequency depends on several factors, including your local climate, the siding's exposure to severe weather like direct sunlight, rain, and wind, the quality of the initial stain application, the type of stain used, and the condition of the wood.

Homeowners in harsh climates with high humidity and significant direct sunlight should plan on restaining every three years, while those in milder locations can wait up to seven years. For the longest-lasting protection in particularly harsh environments, consider using an opaque stain.

If you're looking for a lower-maintenance alternative, vinyl or aluminum siding are options to consider. Although their installation cost may be higher, they don't require as much upkeep over time, which can provide more value, especially in areas with excessive rainfall or high humidity.