What is your climate?
Instead of asking the question “how,” you should really be asking the question how often. If you are in a climate that is moist or constantly wet or has lots of varied precipitation, your roof will need to be cleaned more often. Climates with more precipitation have more opportunities for more stagnant mold and mildew pockets. Do you have 4 seasons or only 2? It could mean the difference between cleaning your roof once or twice a year.
The best bet is to clean your roof at the end of every major season that affects your roof. This means that if you have a dry summer with nothing falling from the sky, you probably don’t have to wash your roof then, unless there is lots of ash from fires or dust from storms. Rule of thumb: clean your roof after every major precipitation season.
Is your roof under trees?
Debris that falls on your roof will stay there until you clean it off. This may seem simple, but people forget that leaves and branches are breading grounds for black algae, mold, mildew, pollen, grime, and grit.
Leaves and branches hide these unsightly growths from the sun allowing them to develop in peace and firmly attach to your roof. Here the rule of thumb comes in two forms. Either: 1) clean your roof after every major storm; or 2) clean your roof after every major debris season.
Soft washing is the key.
Why isn’t “how” the right question? There is only one answer that is valid, soft washing. Soft washing your roof uses detergents similar to laundry detergents to actually kill the mold, bacteria, slime, and algae that is growing on your roof. A professional will then use a low-pressure water wand to rinse your roof off. This way your home retains the value because the shingles aren’t damaged by the high-pressures of a power washer.
Contact us today at Ortiz Pro Wash for a free Roof Cleaning quote! (302-228-6599)