Step 3 check for cleanliness and rinse.
Pressure wash asphalt shingle roof.
Spraying water under your shingles can both tear off the shingles and force water under them and into your home.
Never aim your pressure washer up the roof as it can push water under the shingles.
Cleaning step 2 make and apply the bleach solution.
Of laundry strength liquid chlorine bleach and water.
Never use a.
The reason is simple.
Your roof is easily damaged with hard shoes.
Fill your low pressure agricultural sprayer with a specialized asphalt cleaning agent.
Spray it across the shingles you wish to clean wait about 20 minutes then rinse them with water.
Always stand on a dry area of the roof as wet shingles can be very slippery.
Use a pressure washer which can loosen shingles and seriously damage your roof.
You ll do more harm than good.
Read on for our best roof cleaning tips.
Power washing a composition roof will remove the protective granular from the outer layer of the shingles leaving the shingles less protected from the sun and other harsh weather conditions.
Never use a pressure washer to clean an asphalt shingle roof as this w ill cause granule loss and very likely premature failure of the roof system.
Even with growth forming on your roof s surface you should not break out the pressure washer on your asphalt shingles.
In severe cases it may take more than one bleach treatment to kill all of the moss.
To stay safe suit up in long sleeves pants and safety goggles.
So why is power cleaning bad for your asphalt roof.
How to pressure wash roof shingles 1.
Allow the solution to soak into the shingles for at least 15 minutes.
Take a good look in the gutters.
Attach a 35 degree spray wand to the pressure washer hose and fill the pressure washer with a recommended cleaning.
There are some steps that can be taken to discourage moss and algae growth.
Step 4 take precautions.
Put on shoes with soft non slip soles.
Use a sprayer attached to garden hose that s filled with equal parts chlorine bleach and water.
It will also leave gouge marks in the lower layers leaving them more vulnerable to the elements.
Aim the pressure washer down the roof toward the gutters and keep the tip of the wand at least a foot away from the surface when starting.
That s where 50 of the remaining life of your roof is now sitting.
Cleaning asphalt shingles is an important part of protecting your roof.
This is the best way to clean a roof if you have asphalt shingles.
Put on rubber gloves and a breathing mask before proceeding you so you can.
Place a ladder at.
It takes a professional to clean a roof and they don t employ the use of high pressure equipment.
High volume pressure wash pump 10 15 gallons per minute most of these types of pressure wash systems cost between 3 000 00 7 000 00 not your lowes or home depot variety for sure.
