The best time to have your roof low pressure washed is when the weather is mild and sunny.
Should you power wash your roof.
As a manufacturer of concrete roof tiles we would not advocate power washing or recoating tiles as this would invalidate any guarantee.
Power washing the tiles will remove fines in the concrete which will affect the lifespan of the tiles.
For starters we never recommend.
A careful power washing cleans most gutters and the downspout.
With that being said here are the four times you should clean your roof.
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.
Of course some chemicals can harm your roof as well and the runoff could cause problems with your landscape or parts of your home.
This is the best way to clean a roof if you have asphalt shingles.
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.
Use a pressure washer which can loosen shingles and seriously damage your roof.
A thorough roof pressure washing should be done by a professional company.
Of laundry strength liquid chlorine bleach and water.
Avoid pressure washing your roof some companies offer to pressure wash your roof promising to make it look new.
Use a sprayer attached to garden hose that s filled with equal parts chlorine bleach and water.
Yes it will make it look sparkling clean but also you ll end up replacing the roof system sooner rather than later.
Advice from nfrc national federation of roofing contractors.
There is a chance that the pressurized water could damage your shingles.
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.
Even on the exterior of your home or in your yard fixtures housing electricity should not be pressure washed.
The damage caused by pressure washing is not immediately noticeable.
Pressure washing strips the granules from asphalt shingles.
Rain gutters are part of the roof system and need to be washed when they are full of dirt leaves and other debris.
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.
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