How To Clean Algae Off Of A Flat Roof

Put on rubber gloves and a breathing mask before proceeding you so you can.

How to clean algae off of a flat roof.

Apply cleaner use a stiff bristle brush to apply the cleaner to the roof. Repeat until all the moss is gone. Remove any standing water from the top of the flat roof. That places the three water jets at the correct angle to blast off the dead algae colonies.

Step 4 take precautions. Never use a. At about 2 4 gallons of water per minute a gasoline power pressure should remove moss and algae with ease. Cleaning step 2 make and apply the bleach solution.

Step 3 check for cleanliness and rinse. Mix cleaner mix up oxygen based cleaner with water in a five gallon bucket following the instructions. 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. Allow the solution to soak into the shingles for at least 15 minutes.

After a few minutes hose the area down with water and check. Use a water brush to sweep away excess water and dead moss. Cleaning algae stains 4 gallons of water 1 gallon of bleach 1 cup of tsp tri sodium phosphate or a phosphate free substitution. Mix the product with water for a 1 7 dilution ratio a gallon covers about 700 to 900 sq.

An added bonus because no chemicals are used it is environmentally friendly. To clean an asphalt shingle roof to remove black algae stains. A pressure washer a pressure washer is an extremely effective method of cleaning your flat roof. 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.

How to clean a flat roof. If you use any kind of bleach or chlorine solution to wash your. Drag the rinsing tool in a forward and back motion as if you re vacuuming. Protect the soil and plants surrounding your home.