Pressure washing in which highly pressurized water is sprayed on the roof to remove any mold algae dirt or grime and chemical cleaning sometimes called soft washing in which chemicals are the main thing that are removing those harmful things from your roof.
How to power wash a shingle roof.
One part of proper roof maintenance is cleaning the shingles which you can do yourself in less than an hour.
Step 3 check for cleanliness and rinse.
Use low pressure to spray it clean.
For roofs that are streaked and discolored with algae growth moss or other forms of mildew and mold you can still clean your roof and leave the power washer in the garage.
Place a ladder at.
Step 4 take precautions.
Non slip soles will improve your.
Always stand on a dry area of the roof as wet shingles can be very slippery.
Cleaning step 2 make and apply the bleach solution.
Use a sprayer attached to garden hose that s filled with equal parts chlorine bleach and water.
Of laundry strength liquid chlorine bleach and water.
Hose off and brush all moss loose from your roof shingles.
Use of 35 40degree tips stay away from smaller tips which control the spray pattern positioning of the wand and direction of spray 45 degree angle and 8 to a foot distance from shingles.
Use a pressure washer which can loosen shingles and seriously damage your roof.
Pick a cool overcast day so the cleaning solution doesn t dry too fast.
For extra cleaning power mix in a non ammonia heavy cleaner like tsp.
1500 psi or less with 10 15 gallons per minute.
Put on shoes with soft non slip soles.
The power of a pressure washer can damage the shingles on your roof so it s important that you select the proper spray tip.
Attach a 35 degree spray wand to the pressure washer hose and fill the pressure washer with a recommended cleaning.
Carefully place a ladder near the area of moss growth and don slip resistant shoes old clothes rubber gloves and eye.
The two main methods for roof cleaning are.
How to pressure wash roof shingles 1.
Your roof is easily damaged with hard shoes.
You ll need corrosive cleaner like lye a garden hose a supplemental water pump or a specialized roof or shingle cleaning tool and the proper safety equipment.
Start with a medium pressure spray pattern and adjust from there accordingly.
Allow the solution to soak into the shingles for at least 15 minutes.
Then mix standard laundry bleach with water.