A cedar roof can last between 40 to 50 years, and an asphalt roof can last 20 to 30, that is if you follow the right maintenance schedule. But over time, if left untreated, a roof can accumulate lichen, moss and mildew leading to erosion, rot and roof failure. Sometimes the hard part can be finding the right contractor with the right experience and tools to adequately clean your roof. So how are roofs cleaned? Well, roof cleaning can be accomplished two ways,
1.) The roof can be physically washed or 2.) You can spray it down with chemicals and let it do the work for you. But by letting the chemical do the work for you, the outcome is sometimes not uniform and usually leaves the roof looking patchy. Real roof cleaning contractors go up on the roof and physically wash the roof down with light pressure.
There is always however a natural concern from the home owner about someone pressure washing their roof, a pressure wand in inexperienced hands can cause serious problems to a roof but a pressure washer in experienced hands will result the highest quality, longest lasting "clean" available. If you are afraid of someone spraying harsh chemicals up on your roof you should be. Not only can the chemical run off and damage your plants and lawn, but some roof cleaning products sold online can be fatal to your pets. These toxic chemicals can alter the color of your roof and stain any other surface it may contact on the way off the roof.
The roof cleaner we use is made from earth friendly hydrogen peroxide and it will not harm people, pets or property. As an oxygen based cleaner, the product only has an active life of 4-6 short hours before this product biodegrades, making it by far the safest product in the roof cleaning industry. By using this method of cleaning you will get outstanding results and add years to life of the roof.