Using a power washer clean your gutters to get the initial mildew and grime off.
How to remove black stains from aluminum gutters.
On stubborn streaks let the chemical dwell longer being careful not to let it dry.
How to remove stains from white gutters.
Set up a ladder at one end of the gutter and fascia where the black streaks are located.
Climb up the ladder and.
Rain carries them down the sides of the gutters where they stain the aluminum.
Apply the chemical according to the manufacturer s instructions.
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.
Fill the spray bottle with gutter cleaner.
Scrub the gutters with the soap mixture to clean them.
Shut the bottle tightly and turn the nozzle to the on position.
Brush the gutter with a stiff bristle brush.
Place the ladder where you want to clean trying not to scrape or damage the gutters.
Attach a soft bristled brushor mop to the end of an extension pole.
If you haven t cleaned the debris out of your gutter yet do this first with a garden trowel.
The warmer it is outside the better it works.
Rust residue dirt buildup and.
The black streaks are a result of electrostatic bonding of tar asphalt from roofing material and other debris to aluminum metal material.
Or grab a ladder that can remain stable while scrubbing from it.
Once the mixture is applied to the gutters let it stay for 10 15 minutes before rinsing it off with a garden hose and a nozzle sprayer.
Fill a bucket with a mild liquid soap such as dish soap laundry detergent or body wash.
Simple green any oxygen bleach whitewall tire cleaner alumklean by wsi or a mixture of 1 3 cup of a strong household detergent and 2 3 cup of tsp cleaner.
Here are some products to try.
Spray down those gutters while you re at it.
For that mix half cup of household liquid detergent with a half cup of bleach in two gallons of water.
Rinse with water and if necessary reapply the chemical to remaining stains and brush again.
How to get black streaks off gutters fascias step 1.