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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.

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.

To calculate how much siding you need for exterior walls, first measure the height and width of the rectangular walls. For the triangular gable walls, measure the width and then the height from the ground to the tallest gable point.

• For the rectangular walls, the calculation is: length x height

• For the triangular gable walls, the calculation is: (length x height) / 2

Once you add these up, include an additional 10% to account for any wastage.

You may only need to repaint fiber cement siding every decade or so, but you should clean it every six to 12 months, depending on your local climate. First, wash with a garden hose or similar low-pressure device (not a high-pressure washer, which can damage the material) to remove dirt and any large debris. Then, gently wipe down the surface with a soft brush or cloth in a side-to-side motion, following the grain of the fiber cement.