Washing the siding on your house every 3 to 5 years keeps it looking great. Dust and airborne pollutants form a film on your siding that may barely be noticed at first, but it often begins the process of unsightly growth of fungi. Algae and mildew find support for growth in that dust film and begin to spread. The more it grows, the faster it grows.
Algae is the green substance you might see in shaded areas and is easily removed in the washing process. Mildew is black and usually looks like a rash of small spots. When the spots are scattered they may barely be noticed, but as it grows and the spots concentrate, they become much more visible.
Our house wash cleaning solution is sprayed on the siding to emulsify the dirt and contaminants which can then be washed off. It also will kill the mold and algae and leave the siding clean and free of spores
An occasional problem on siding is small raised black spots the size of a pin head sprinkled across the siding. They are usually concentrated in areas around flower beds and landscaping with mulch. It’s called Artillery Fungus and originates from the mulch. It is not removed with power washing and will not come off in the washing process. For more information, click here.