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The recommended PSI (pounds per square inch) for cleaning vinyl siding can vary, so it's best to consult the manufacturer's guidelines. Generally, vinyl siding can handle high pressure, from 2,500 to 3,500 PSI. For comparison, more delicate materials like wood and aluminum siding should not face more than 1,500 PSI. To safely disperse the pressure on vinyl, use a tip with a wider spray span, such as a green (25-degree) or yellow (15-degree) nozzle. For routine cleaning of light dirt, a garden hose with a spray nozzle may be sufficient. Always exercise caution to avoid using excessive pressure that could damage the siding.

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.

If you buy new cedar, the process of cutting it usually roughs up the surface enough that it doesn’t require sanding. However, if you buy older cedar or you’re repurposing it from another application, it’s a good idea to sand it. This helps the stain settle into the grain, and results in a more uniform appearance.

Contrary to popular belief, people still do use aluminum siding for their homes—but it’s much less popular than it was in the mid-1900s. The introduction of various types of vinyl siding as an affordable option reduced the demand for aluminum, which is prone to scratching and denting and needs to be repainted every five to 10 years. Given the abundance of house siding options, especially newer and more popular types like stone veneer siding, aluminum siding has simply just fallen out of favor.