Pressure washing strips the granules from asphalt shingles.
Power washing roof is it bad.
When you pressure wash use the minimum force possible to pry the fungus free and wash it from the roof.
The water pressure will remove the granules that are important for protecting your roof.
The two main methods for roof cleaning are.
Yes it will make it look sparkling clean but also you ll end up replacing the roof system sooner rather than later.
You soft wash a roof.
Pressure washing is dangerous.
And still be rinsing at 5 g p m.
But that is normal.
It can take up to 4 to 6 weeks for the moss to come off the roof.
You don t ever power wash a roof.
Roof cleaning takes tools designed for the job.
With roofs its not pressure washers that damage the roof it s high pressure.
Don t try to pressure wash a roof like you would a fence or a sidewalk as doing so could cause damage to surface tiles or shingles while also creating moisture damage.
The damage caused by pressure washing is not immediately noticeable.
Never pressure wash your roof if you have asphalt shingles.
I suggest you make amendments to your article just to be on the safe side.
The fact is a professional that knows how to use his equipment can pressure wash a roof with as little as 200 p s i.
There will be some granule loss under the moss and lichen.
Not to mention using a pressure washer from a high place is dangerous.
But pressure washing your asphalt roof will do more harm than good.
1 attach a 35 degree spray wand to the pressure washer hose and fill the pressure washer.
We apply a special blend of soaps and let the rain rinse it off.
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.
Once you squeeze the trigger the powerful recoil on the spray wand can throw you off balance and off of a ladder.