Mildew or even worse mold may be the culprit.
Remove black spots from siding.
Mold and mildew can stain your siding cause wood to rot and impact allergies or make occupants sick.
Peroxide hydrogen peroxide has also been said to work especially at higher strengths.
Instead aim the sprayer in such a way that the solution is sprayed from above.
How to prevent shotgun fungus.
Remember not to angle the sprayer upward to keep the solution from seeping under the siding layers.
Keep in mind that it might also bleach the paint on the siding.
Using a ladder may help you achieve a more even application.
Do a test spot somewhere inconspicuous.
Rinse the siding with a garden hose equipped with a nozzle.
Apply it allow it to bubble and then brush it off with a wet scrub brush or sponge.
Begin by spraying a 5 foot wide section of the siding from the ground to the top.
Use big pieces of pine bark or other bark mulch which are a less hospitable place for the fungus.
These are simply sprayed or rubbed onto the surface of the aluminum and then buffed up using a clean cloth.
This can be purchased in sprayable or paste solutions which are very easy to apply.
Over time and through repeated changes in weather vinyl siding will attract and develop mold or.
Whether it s lighter white or tan or darker black spots you should take immediate action to clean these damaging fungi from your home.
This will prevent water from seeping behind the siding and causing damage to the wood sheathing behind it.
Thankfully regular maintenance of your vinyl siding is fairly straightforward and simple.
If the oxidation is mild and light then you should be able to use an oxidation removal product without acid.
Plant a low maintenance groundcover in the area instead of.
This will buy you a year before the fungus reaches to the top of the new mulch.