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Inspect for debris, clean drains, and regularly check for punctures or cracks to maintain performance.

The average cost to clean a roof is around $500, but prices can fall between $150 to $1,000 or more. The size and complexity of your roof are the most significant cost factors, as larger roofs and those with various bump-outs and gables will increase your cost. Your roof material will also make a difference. An asphalt roof will require more labor, as your professional will need to be careful not to damage the shingles. A metal roof can stand up to more intense scrubbing and shouldn’t take as long to clean.

If you’re painting your home or monitoring a job as it’s being completed, squash the issue ASAP if you notice paint is getting onto the roof. Keeping it clean is one of the keys to extending your roof’s life.

Removing latex paint before it dries is much easier and lowers the risk of damaging your shingles (more on that below). Simply spray the spot with a hose for one to two minutes to clear away the drying paint. In general, this is a good way to remove ugly stains from your roof without using chemicals.

Iron, or ferrous sulfate, is one of the fastest methods for killing moss. As such, you’ll find this ingredient in many lawn fertilizers and lawn killers. Vinegar is another solution for quickly killing moss. It takes just 15 to 20 minutes for vinegar to take effect. A harsher method is bleach, which also has a similar time frame for taking effect.