City water is generally 80 100 psi.
Oxyclean on roof shingles.
Clean shingles on a cool humid overcast day to ensure that the cleaner doesn t dry too fast on the roof.
When it rains the water washes away some of the metal which destroys moss and algae spores.
Mix the hot water bleach and detergent in the bucket until the soap granules dissolve.
Pour the mixture into the garden sprayer.
To get rid of unsightly mold and mildew streaks it s good to use oxi clean on roofs.
But once the algicide wears off your roof hosts an all you can eat buffet for the neighborhood algae spores.
Copper and zinc strips found at home improvement stores can be placed under shingles.
Moss can seriously impact asphalt shingle performance by causing them to curl up and blow off eventually resulting in leaks.
While algae doesn t actually harm your roof it can impact its aesthetic appeal.
Installing these strips can puncture sealant on the shingles so it s best to do this when placing a new roof.
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The roots of molds and mildew break down your roof and must be eliminated.
I have a water broom modified to rinse a roof.
Set the garden hose on the spray setting with the highest pressure water and hold the nozzle close to the shingles when rinsing.
Apply generously over the remnants of the moss and the roof shingles.
Each shingle on the roof is rinsed.
The broom allows me to cover 24 at a time at the full flow rate of whichever pressure washer i m using.
Mix 4 scoops or 1 2 cup of oxygen bleach with 4 gallons of warm water.
Drew s roofing and home repair brunswick county nc roofer 910 845 2207 in this video we are doing a roof wash using bleach soap and water.
A knowledgeable professional knows how to use the equipment properly.
Allow the oxy bleach mixture to sit on the shingles for about 15 minutes.
Do it yourself and save big bucks.
The pressure on the shingle is less than 100 psi.
This will remove any stains that were loosed up by the oxygen bleach.
Further climbing on your roof frequently to clean off growth can damage your roof and shorten its lifespan by loosening the granules on.
So it pays to clean your shingles as soon as you spot algae growth.
Recommendations for how to deal with this have changed over time as experience was gathered.
Use a garden hose to rinse the stains and cleaning solution from the roof.
Carefully place a ladder near the area of moss growth and don slip resistant shoes old clothes rubber gloves and eye protection.
Place metal strips under shingles.
Mix the hot water bleach and detergent and pour into the garden sprayer.