A roof cleaning company may suggest applying a special treatment if moss is a constant problem for the roof. This type of roof cleaning only cleans moss and other growths on the roof. It will not remove leaves or debris. If you have a moss-covered roof, expect to pay between twenty and thirty cents per square foot.
Rainwater generally removes most of the dirt and debris from solar panels year-round, but if you live in a place with little rain, the solar panels will need to be cleaned regularly. When professional roofers climb onto your roof to clean it, they may encounter other problems that need to be fixed. In addition, it doesn't kill core moss, so chemical-based cleaning may be necessary if the roof has a lot of plant life. This creates the need for additional labor, which can increase the price of professional roof cleaning.
It won't be as effective against persistent marks and stains, but it's a good option for cleaning the entire ceiling and won't pose a great risk to its structural integrity. It's true that dirty solar panels are less efficient than clean ones, but normally you won't have to worry about cleaning them because the rain will remove dirt and debris for you. Most professional cleaners clean moss during the cleaning process, either by low-pressure cleaning, gentle washing, or chemical cleaning. Regular pressure washing also won't be an option for roofs with moss buildup because it doesn't do anything to kill moss.
Cleaning roofs can also postpone the need for expensive roof replacement by several years. While it may seem tempting to save a few dollars cleaning the ceiling yourself, it's best to leave the work to the professionals. Dirty and stained panels may not produce as much energy as clean ones, so it's a good idea to check panels from time to time to make sure they don't have stains. One factor affecting how often you clean the roof is its location and the surrounding environment.
This chemical solution can be applied after cleaning the ceiling to protect the surface against future stains and minimize the need for future cleaning. Your roof may need more frequent cleaning if you live in a place with a lot of humid climate or another climate that exposes it to dirt, moss, or salt.