Romoving Stains Off Of Roof Shingles

Not to mention the danger of using a pressure washer on a pitched roof.

Romoving stains off of roof shingles.

Some of this growth including the stains from algae spores. If you live in a humid area of the country you ve probably seen unsightly dark streaks on asphalt shingle roofs. It is important that the roof be wet when the cleaning mixture is applied or it may evaporate before it has a chance to work. Oxygen bleach lightens stains as well and is less harmful to the environment but it doesn t produce as immediate or dramatic an effect as chlorine bleach.

How to remove and prevent black algae stains on asphalt shingle roofs black stains on an asphalt roof caused by algae. If your household water pressure isn t enough to generate the proper nozzle pressure at the jets the manufacturer recommends boosting it. Proper cleaning is an important step in roof maintenance. Chlorine bleach and trisodium phosphate step 1 wet down the roof with water from the garden hose.

Unlike black algae stains which come off immediately with the rinse phase of the cleaning dead lichen and moss will require a few heavy rains to finish rinsing off the roof. Here is a diagnostic guide to types of stains and staining materials found on roof surfaces black red green brown or other coloured stains on asphalt roof shingles or on other roofing materials need first an accurate diagnosis of the stain cause and then proper steps to remove the stain or to prevent future staining on roof shingles surfaces. A mixture of trisodium phosphate tsp bleach and water will also remove stains. These are tough stains to completely remove as the algae is embedded deep in the shingle grit.

How to clean roof shingles. I had to get out the pressure washer to really clean the roof but needed to use caution to not damage it.