Most anything that is exposed to Mother Nature is going to get dirty or suffer from mold and mildew depending on the climate. Your home and entire property is no exception. Concrete, brick, vinyl siding, wooden decks, and gutters are all affected by these natural pollutants and will need cleaned eventually.
Your home’s asphalt shingle roof is also something that will eventually need attention. A common problem with asphalt roofs is an airborne algae simply known as roof algae. This alga appears as black streaks or black roof stains normally first appearing on the north facing slopes. Like most any surface exposed to the elements, your asphalt shingles can be cleaned to restore their original appearance.
Hiring a professional roof cleaning company that will use low pressure techniques to clean your roof is vitally important so no damage is done to your roof shingles. This black roof moss or algae, if not taken care of, will only get worse never better. The black roof streaks will soon spread and take over the entire roof. This not only breaks down the black algae infected roof and causes it to fail prematurely, but it also increases your home’s cooling cost.
Never allow a contractor to pressure wash, scrub, or brush your shingles, doing so will remove the shingle granules which are there for protection. The chief shingle manufacturers have recommended low pressure cleaning methods and roof cleaners that should be used to clean asphalt shingle roofs suffering from black roof algae.