But that is normal.
Power washing roof moss.
There will be some granule loss under the moss and lichen.
You soft wash a roof.
Power washing takes 5 years off the roof surface.
If your moss problem requires more than.
Apply a storebought or diy cleaning solution to remove the moss.
It can take up to 4 to 6 weeks for the moss to come off the roof.
Hose off and brush all moss loose from your roof shingles.
By comparison a fire hose sprays at 150 to 300 psi.
We apply a special blend of soaps and let the rain rinse it off.
Always stand on a dry area of the roof as wet shingles can be very slippery.
Most techniques that we have come across to remove moss are often achieved by violent means such as power washing which may cause damage to the roof especially when combined with unnecessary foot traffic often leading to cracked or broken roof tiles.
You don t ever power wash a roof.
Pressure washers use 1 300 to 2 800 pounds per square inch to strip dirt moss and even paint from a surface.
The nfrc was established over 120 years ago and in 2012 they issued this statement.
Carefully place a ladder near the area of moss.
A light sweeping or a rinse with the garden hose is usually sufficient and most roofs don t even need that.
Instead soft washing with a garden hose is least likely to chip dent or crack the tiles or panels.
The power of a pressure washer can damage the shingles on your roof so it s important that you select the proper spray tip.
The noteworthy exception is roofs that have grown algae mold or moss.