Use big pieces of pine bark or other bark mulch which are a less hospitable place for the fungus.
How to remove black spots on siding.
1 quart liquid laundry bleach.
Choose the best cleaning solution.
If you use these then this can actually affect the aluminum itself.
This will mean that you need to buff it up at the least.
If you prefer a commercial product mix one 1 part bleach with four 4 parts water.
It can potentially cause pitting in the aluminum and damage to the paintwork.
1 3 cup powdered laundry detergent.
A popular homemade option is to mix three 3 parts distilled white vinegar with seven 7 parts water in a bucket.
Follow up by spraying another layer onto the entire roof.
Peroxide hydrogen peroxide has also been said to work especially at higher strengths.
How to prevent shotgun fungus.
Spray a generous amount of the cleaning solution onto the black areas of the roof shingles.
Add a fresh layer of mulch.
Pour 4 gallons of warm water into a large bucket and mix in 1 4 cup of laundry detergent.
You can try a number of proven diy and commercial cleaning solutions on your siding.
For best results use a cloth or soft bristled brush and start from the bottom so your cleaning solution doesn t leave streaks or just drip off the side of the house.
Do a test spot somewhere inconspicuous.
Apply it allow it to bubble and then brush it off with a wet scrub brush or sponge.
You might also need to use some sandpaper to remove any pitting.
1 gallon of water.
2 3 cup powdered household cleaner.
Keep in mind that it might also bleach the paint on the siding.
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.
Step 4 rinse the area you just cleaned with the garden hose and then work your way up the siding.