As you spray keep the distance of the pressure washer nozzle uniform across the roof.
Can you pressure wash a metal roof.
When you re ready to get started spray your roof using a garden hose with a spray nozzle attachment starting at the top of the roof and blasting downward so the dirty water runs off the sides.
You can also use a mild detergent solution in place of plain water if your roof is in particular need of a more intense wash.
Before you can clean your metal roof you ll need to do a thorough inspection of the roof itself.
Use a pressure washer which can loosen shingles and seriously damage your roof.
The power of pressure washers can be too much of a good thing.
Therefore it s usually best to clean a metal roof from on top of the house itself.
Read on for our best roof cleaning tips.
When you pressure wash use the minimum force possible to pry the fungus free and wash it from the roof.
You only need low pressure on metal roofs as it is enough to disturb and clean them.
There is a chance that the pressurized water could damage your shingles.
To clean a metal roof wait for a dry overcast day and make sure you have a partner to help you for safety reasons.
Of laundry strength liquid chlorine bleach and water.
You can do roof cleaning yourself but don t take the decision to lightly.
Not to mention using a pressure washer from a high place is dangerous.
This is the best way to clean a roof if you have asphalt.
Consumer reports experts share pressure washer cleaning advice for your deck roof siding car and more.
Use a sprayer attached to garden hose that s filled with equal parts chlorine bleach and water.
1 attach a 35 degree spray wand to the pressure washer hose and fill the pressure washer.
Then get a 12 volt or gas powered detergent sprayer.
Keep in mind that metal roofs tend to be much more slippery than an asphalt roof and that many aluminum roofs will also dent easily if walked on.
We recommend hot water because metal roofs can handle it and hot water is more effective.
Never pressure wash your roof if you have asphalt shingles.
Pressure washing is very effective but may be best for metal or concrete roofs.
However keep the concentration of the detergent at its minimum.
Once you squeeze the trigger the powerful recoil on the spray wand can throw you off balance and off of a ladder.