How Ti Get Black Stains Off Roof

Algae can be killed and the stains removed using chemical cleaners though they usually return over time.

How ti get black stains off roof. While doing little harm to your shingles the black streaks caused by the algae are unsightly. 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. How to remove and prevent black algae stains on asphalt shingle roofs algae resistant shingles. The closer you are to the roof stains the better your roof stain removal products will work.

How to remove black stains from roof shingles. Fill a large bucket with 1 gallon of hot water 1 qt. When rain hits the strips it produces a solution that runs down the roof and keeps algae moss and fungus from growing. An internet search on how to clean black streaks on your roof will turn up several different homemade formulas as well as commercial brands for getting rid of roof algae.

If you decide to try it apply it shortly after you ve cleaned the roof. The oxygen bleach starts to go ahead and attack the roof algae and it does its best to kill it and take away the stains. In order to remove the black streaking from your roof you will need several items. The second method is to spray on a coating of stain blocking solution defy stain blocker for roofs is one product but there are other brands as well a stain blocking product can buy you up to three years of protection from algae.

If the streaks don t bother you or you re not ready to invest in a new roof install zinc or copper strips available at roofing centers along the top course of shingles. Lightly scrub the shingles. Algae stains can be removed by cleaning though they usually return. It is important that the roof be wet when the cleaning mixture is applied or it may.

Of chlorine bleach and a quarter cup of. Take a scrub brush. 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. Most formulas contain chlorine bleach and or trisodium phosphate tsp and water.

In recent years roofing manufacturers have begun mixing copper granules into roofing products. Wet down the roof with water from the garden hose.