Green And Black Residue On Aluminum Siding

Green stains on siding are usually the result of mold mildew algae or moss.

Green and black residue on aluminum siding.

If you have green stains on your deck or siding it s probably due to either cholophyta algae green algae or a cyanobacterium related to gloeocapsa magma. Aluminum siding cannot rust and it s a very durable material however there are numerous things that can cause it to oxidize. Two washes may be necessary to remove the chalk. In our photo at above left shows a common condition that is found on many types of building siding.

Algae is often confused with mold. These stains occur naturally over time. Algae stains usually green or brown sometimes black. There are many different things that you can do to clean your aluminum siding and remove the back oxides.

Thoroughly scrub the surface of the siding with a dual sided sponge or scrub brush. I ll admit i hate our aluminum siding. Read this before you power wash your aluminum siding. I ll show you how to clean aluminum siding and remove that chalky residue easily without power washing.

Watch as lou manfredini ace s home expert shows you an easy and affordable way. The algae can cause black or gray streaks that seem to run down your roof. Oxidization can make the aluminum siding look ugly and it needs to be removed as quickly as possible. Algae on building walls.

Fortunately siding can be cleaned to remove not only green stains but other dirt and stains that may be taking over the homes exterior. If you have green and black stains on your siding clean it easily with wet forget hose end. Hand scrubbing is very effective at removing chalk from aluminum siding. It s hard to see shotgun fungus itself because it s only 2 millimeters wide.

Also known as artillery or cannonball fungus sphaerobolus it uses internal water pressure to forcefully fire its spores similar to seeds up to 20 feet away the fungus sets its sights on bright areas so that means it will aim for any pale surface that reflects light such as the siding on your house. The green color comes from chlorophyll which is the same substance that makes plants green. When house siding begins to turn green it diminishes the exterior appearance of the home. Algae often causes black stains on roof surfaces and green stains on other building exterior surfaces such as concrete photo above left decks and building siding photo below.

Algae is found on siding that is shaded and stays damp. It dents easily and the red color is difficult to coordinate with outdoor decor. You can apply wet forget with your feet firmly planted on the ground. Green or brown or black algae growth.