Green Algae On House Siding

Be sure that all windows and doors are.

Green algae on house siding. The algae may appear brown or green in color and remain damp diminishing the appearance of your home and spreading out over time. Cover any electrical outlets on the exterior of the home with duct tape. How to remove algae from siding 1. Unlike mold this type of growth is mainly cosmetic and can be removed using minimal force and a few basic materials.

You re most likely to see green stains on siding that is inadequately ventilated. It is actually airborne algae that can cause long term damage to the surface. Black stains are usually a sign of mildew algae mold or fungus. Yellow stains mean you probably have damaged insulation or deteriorating sheathing behind the siding.

While it is not uncommon to see homes with an accumulation of green stuff it is important to take care of it in a timely fashion. Green stains are almost always the result of algae or moss. The green stuff on your siding is more than an eyesore. Spray down the siding with plain water from the garden hose.