Remove Black Stains On Roof

How to clean roof stains wash your shingles where the sun doesn t shine.

Remove black stains on roof.

How to remove and prevent black algae stains on asphalt shingle roofs algae resistant shingles. The first stains usually appear on the north facing sides of a roof which receives less light and in. These roof invaders require a moisture rich environment usually supplied by dew and shade. In order to remove the black streaking from your roof you will need several items.

Most formulas contain chlorine bleach and or trisodium phosphate tsp and water. The black streaks running down roofs are actually a hardy algae called gloeocapsa magma. How to remove black stains from roof shingles. Here s how to clean the.

Algae can be killed and the stains removed using chemical cleaners though they usually return over time. It is important that the roof be wet when the cleaning mixture is applied or it may. As the blue green algae accumulate they develop a dark hardened outer coating which results in the black stains you see. 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.

Do shingles on your north west or other shaded roofs have streaky moldy stains. While doing little harm to your shingles the black streaks caused by the algae are unsightly. 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. Make your shingles last longer.

What you do is put it into a pump sprayer spray it on the roof and you need to keep the roof wet with the solution for about 10 or 15 minutes. 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 recent years roofing manufacturers have begun mixing copper granules into roofing products. 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.

So black stains on roofs can be removed just choose a quality roof cleaner product or your local roof cleaning professional and make your roof look better. The algae feed on the limestone in shingles. Lightly scrub the shingles. Wet down the roof with water from the garden hose.

A spray stain remover solution a scrub brush a garden house protective eyewear rubber gloves shoes with tread a bucket and a ladder. Black streaks on the north and west facing and shaded. Algae stains can be removed by cleaning though they usually return. Fill a large bucket with 1 gallon of hot water 1 qt.

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.