Algae Growing On Siding

What causes algae and mildew to grow on siding.

Algae growing on siding. This moisture flows out the weep hole and works across the underside of the siding due to surface tension. Algae on vinyl siding occurs because organic materials such as dust dirt pollen bird droppings and spider webs accumulate on the siding and algae uses it as a food source. You may have noticed a green growth on your vinyl siding or gotten an hoa violation letter notifying you that your siding needs to have the green growth cleaned off. Use a bristle brush attached to a long pole to apply the solution to your siding scrubbing hard to get the surface.

Algae growing on siding from condensation is due to moisture draining behind the siding. Mix a cleaning solution. A small amount mixed with. So wood siding because it s organic will be especially susceptible to this issue.

Some effective cleaners include oxygen bleach or trisodium phosphate. While vinyl and fiber cement are not organic substances they can both accumulate dust dirt and other small specks of natural materials. How to remove algae from siding 1. To put it simply algae and mildew both grow in areas that are damp and organic.

The algae may appear brown or green in color and remain damp diminishing the appearance of your home and spreading out over time. We even find this on the sunny side of homes. Instead it is better to. Unlike mold this type of growth is mainly cosmetic and can be removed using minimal force and a few basic materials.

Siding has small weep holes to allow moisture trapped behind it to escape. You may have black mold and mildew or green algae growing on the north side of your home if you live north of the equator.