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It’s possible that installing solar panels can lead to mold on the roof. The panels themselves are not the issue. Problems caused by improper installation—such as roof leaks and mounts that aren’t sealed properly—can cause mold. Another potential cause of mold is debris accumulation under panels, which can trap moisture. If you live somewhere with extreme snow, rain, or hail, your home could be more prone to mold.

There are several ways to remove snow from your roof: using a snow rake, salting the roof with calcium chloride, using a rope (cautiously), and using heating cables. It’s important to mention that pretty, fluffy, sparkling snow weighs a great deal, and when physically removing snow from a roof, you should be aware of large snow slabs breaking off. These can weigh hundreds of pounds and are a real danger, so be extremely careful anytime you’re doing this type of work.

Roof raking helps clear snowfall from your roof and, in turn, you hope that this prevents ice dams. But can roof raking actually cause them? Generally, no, it cannot. But you should note that while, in some cases, you might successfully prevent ice dams from forming near the edge of your roof by keeping it cleared with a roof rake, they could still form higher up on the roof, where you are unable to reach. This may leave you wondering: Does roof raking prevent ice dams? While it is not a 100% guaranteed way to prevent them, it does help.

Roof cleaning isn’t a necessity, but it can drastically improve your home’s curb appeal and even prolong the life of your roof, so it’s often a great investment. It’s especially a good idea if shaded parts of your roof experience algae or moss growth, which can damage the shingles and hold water against them, increasing the risk of a roof leak.