Black Stains On Exterior Walls

We have investigated numerous units over the years that have been experiencing discoloration of carpeting due to particulate.

Black stains on exterior walls. For a stain to appear two factors must be present. As in rock hard clay. Mildew typically looks gray white or yellow in color and over time turns darker black or brown.

Keep the stucco very wet with the solution for up to 30 minutes. Hygroscopic salts can cause white staining and damp on your walls. No residue on switch plates.

Condensation if left unchecked will lead to damp walls ceilings black spots and mould. And no residue on an receptale unless its around the outlet. Its hard to see shotgun fungus itself because its only 2 millimeters wide.

These black stains can be anywhere on the wall and will vary in darkness or shades of black. These black stains are carbon stains from pollution in the air. To find out if you have mildew on your walls apply some bleach onto the affected area with a cloth.

Use a stiff scrub brush dipped in the solution to remove the black stains. Here is an extreme example the photo was taken in another house. What causes black streaks on walls and ceilings.

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 awayThe 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. Saint Louis was once a much larger Coal consuming city and with this car pollution and the constant burning of fireplaces brick over time will accrue black stains. Soot small carbon particles Mold Dirt.