How Do I Remove Black Streaks On My Roof

Roof algae can be easily removed by a simple roof cleaning.

How do i remove black streaks on my roof.

The important thing to know is that while an occasional cleaning shouldn t harm your roof doing it yourself may void any roof warranties or homeowner insurance policies you may have. No pressure washers please. They re likely to damage the shingles just be sure to wet your foundation plantings first and rinse everything in clean water when you re done. Your stains are probably caused by the airborne spores of a blue green algae known as gloeocapsa magma which is often mistaken for mold or mildew.

Fill a large bucket with 1 gallon of hot water 1 qt. It is important that the roof be wet when the cleaning mixture is applied or it may. So the algae colony gets right back to work. Sodium hydroxide lye products on the other hand work better than bleach and are less harmful to vegetation.

If you don t like the streaks reshingle with algae resistant shingles. In order to remove the black streaking from your roof you will need several items. The streaks are mold forming on the roof the safest way to remove is with an roof cleaner that is safe to use and will not harm plants or animals. How to remove black stains from roof shingles.

Algae can be killed and the stains removed using chemical cleaners though they usually return over time. A spray stain remover solution a scrub brush a garden house protective eyewear rubber gloves shoes with tread a bucket and a ladder. Of chlorine bleach and a quarter cup of. Use a cleaner specially made for killing algae or by spraying a mixture of one part bleach to four parts water with tsp trisodium phosphate or.

The wrong way to remove black streaks from your roof there is a temptation among homeowners to try to address gloeocapsa magna with power washing. This is something you should absolutely not do. Wet down the roof with water from the garden hose. Be sure to have a friend or family member with you to ensure that you are safe while your climb up and work on your roof.

Bleach and chlorine are way to dangerous. The less expensive solution is to spray wash the roof with a 50 percent mix of water and bleach to get rid of the algae. Bleach may kill the top layer of algae and lighten the stains but it doesn t kill the underlying algae. How do you get rid of black streaks on your roof.