How To Clean Algae From A Roof

A professional can inspect your roofing system determine whether the algae has caused any underlying issues and clean your roof in a way that will not cause further damage.

How to clean algae from a roof. A contractor can then recommend ways to prevent future algae growth such as special roof coatings or gutter replacement. You can also use a pressure washer but that may break sensitive shingles. There are different ways to clean moss and algae off of a roof. The jet tip nozzle will reach surfaces up to 30 so you don t need to use a ladder to get onto your roof.

To keep the algae from coming back insert 6 inch wide strips of zinc or copper under the row of shingling closest to the roof peak leaving an inch or two of the lower edge exposed to the weather. Cleaning step 2 make and apply the bleach solution. Step 4 take precautions. If you have algae that s leaving dark stains on your roof clean it easily with wet forget hose end.

That way whenever it rains some of the metal molecules will wash down the roof and kill any algae trying to regain a foothold on your shingles. Apply with a sprayer and allow the solution to dwell on the roof surface for 15 to 20 minutes and then rinse thoroughly with low pressure water. You can physically remove the invasive plants with a long handled scrub brush as long as you are careful with the shingles. Step 3 check for cleanliness and rinse.

Cleaning algae stains 4 gallons of water 1 gallon of bleach 1 cup of tsp tri sodium phosphate or a phosphate free substitution. Roof cleaning with wet forget is easy as you can apply it with your feet firmly planted on the ground. Allow the solution to soak into the shingles for at least 15 minutes.