This is the best way to clean a roof if you have asphalt shingles.
Should you power wash your roof.
Avoid pressure washing your roof some companies offer to pressure wash your roof promising to make it look new.
Of course some chemicals can harm your roof as well and the runoff could cause problems with your landscape or parts of your home.
Power washing the tiles will remove fines in the concrete which will affect the lifespan of the tiles.
Pressure washing is very effective but may be best for metal or concrete roofs.
You don t want high winds blowing leaves and debris right back on to your roof and undoing all of the work you ve just had done.
Advice from nfrc national federation of roofing contractors.
But pressure washing your asphalt roof will do more harm than good.
Use a sprayer attached to garden hose that s filled with equal parts chlorine bleach and water.
Rain gutters are part of the roof system and need to be washed when they are full of dirt leaves and other debris.
The best time to have your roof low pressure washed is when the weather is mild and sunny.
Of laundry strength liquid chlorine bleach and water.
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With that being said here are the four times you should clean your roof.
A thorough roof pressure washing should be done by a professional company.
Tempting as it might be to blast away unsightly moss and algae using a pressure washer to clean your roof is dangerous not to mention potentially damaging.
There is a chance that the pressurized water could damage your shingles.
Use a pressure washer which can loosen shingles and seriously damage your roof.
For starters we never recommend.
A careful power washing cleans most gutters and the downspout.
Pressure washing strips the granules from asphalt shingles.
Though they can withstand a rainstorm pressure washing can force water into cracks and crevices and cause damage resulting in a need for costly repairs.
This prevents the growth of mold under the roof eaves and on the walls of the building.
The damage caused by pressure washing is not immediately noticeable.
Unfortunately pressure washing may cause a lot of damage particularly to roofs like asphalt or tile where components can easily be pushed out of place by the strong spray.