That s where the problems start and they make themselves known in the form of black streaks.
Electrostatic bonding gutters.
Gutters are metal and as such have an electrostatic bond which attracts atmospheric dirt.
They sit right at the bottom of your roofline and debris and dirt tend to cascade down your shingles and over the gutter system.
The black stripes also known as tiger stripes that appear on the outer surface of gutters are the results of water run off which causes particles from algae roofing materials or the air to cling to the surface by the process of electrostatic bonding.
Rinse it off and let those gutters shine.
Once the bond is broken only then can you easily clean gutters and the pesky tiger stripes that occur.
When cleaning gutters it is important to break the bond between the dirt and gutters.
Streak getter will break down this bond which will allow you to remove the unwanted streaks off your aluminum gutter with little effort no scrubbing.
The dark marks on gutters are caused by the electrostatic bonding of dirt grime and acid rain runoff.
Use gutter zap on your new applicator to apply it to the exteriors of gutters.
The contaminants will attach to the gutter oxidation in another process called electrostatic bonding and over time will cause those unwanted black streaks.
This is due to a phenomenon called electrostatic bonding.
Over time these stains get embedded into the oxidized paint on the gutters.
Your gutters are in a vulnerable area.