How To Clean Algae Off Of A Flat Roof

Cleaning algae stains 4 gallons of water 1 gallon of bleach 1 cup of tsp tri sodium phosphate or a phosphate free substitution.

How to clean algae off of a flat roof. An added bonus because no chemicals are used it is environmentally friendly. Wet roof lightly wet down the roof using a garden hose. How to clean a flat roof. After a few minutes hose the area down with water and check.

A pressure washer a pressure washer is an extremely effective method of cleaning your flat roof. Step 4 take precautions. Put water over the roof and moss and then put bleach onto the moss this will turn the moss brown in minutes. Drag the rinsing tool in a forward and back motion as if you re vacuuming.

Never use a. Cleaning step 2 make and apply the bleach solution. 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. Step 3 check for cleanliness and rinse.

Apply cleaner use a stiff bristle brush to apply the cleaner to the roof. To clean an asphalt shingle roof to remove black algae stains. Remove any standing water from the top of the flat roof. Repeat until all the moss is gone.

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. At about 2 4 gallons of water per minute a gasoline power pressure should remove moss and algae with ease. Use a large brush to push away the water and any leaves that have collected on. Protect the soil and plants surrounding your home.

That places the three water jets at the correct angle to blast off the dead algae colonies. Mix the product with water for a 1 7 dilution ratio a gallon covers about 700 to 900 sq. Allow the solution to soak into the shingles for at least 15 minutes. Use a water brush to sweep away excess water and dead moss.