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. It is recommended that, to save money on your Nanuet roof moss removal project, make sure you clean the roof regularly.
Algae, lichens and moss look like harmless growths on the roof, but they are slowly but surely causing roof damage. If part of your roof is heavily shaded and you can't remove the blockage, expect to have to clean it at more frequent intervals, as it can be a breeding ground for mold and algae. The zinc strips interact with rainwater and release zinc carbonate, which prevents moss from growing on the roof. If a roof cleaner plans to pressure wash the roof, this could void the roof warranty, especially for asphalt, dirt, slate, or shingles.
In addition to the cost of a thorough cleaning to remove persistent stains and moss, you may incur additional charges if you opt for additional services, such as gutter cleaning or minor roof repairs. For example, if there are a lot of stains caused by Gloeocapsa magma, a type of airborne algae that causes the roof to darken, removing them can increase costs. A concrete roof benefits from cleaning it with a gentle wash; however, different algae and mosses usually grow. For example, if the roof is flat, it will be easier for roofers to work on it and labor costs will be lower, but a steeper roof will increase the cost.
It may be tempting to clean your own roof to save money, but you may want to leave roof cleaning up to the experts for safety reasons and to ensure that they use the best cleaning methods for your roof. For example, if you work as a roof cleaner, you most likely know how to clean your own roof. When it comes to removing moss, mold, algae, and the like, a roof cleaner will use a chemical cleaner to do so. And a roof with a thick layer of lichens or moss will have different needs than a single one with soil, leaves and other loose debris.
Fall weather can actually be detrimental to the roof by causing damp leaves and pine straw to build up on the roof, making it ready for moss and algae to grow.