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.
Power washing roof moss.
If your moss problem requires more than.
Always stand on a dry area of the roof as wet shingles can be very slippery.
The noteworthy exception is roofs that have grown algae mold or moss.
Power washing takes 5 years off the roof surface.
But that is normal.
It can take up to 4 to 6 weeks for the moss to come off the roof.
Pressure washers use 1 300 to 2 800 pounds per square inch to strip dirt moss and even paint from a surface.
Hose off and brush all moss loose from your roof shingles.
Hose off and brush all moss loose from your roof shingles.
Start with a medium pressure spray pattern and adjust from there accordingly.
Instead soft washing with a garden hose is least likely to chip dent or crack the tiles or panels.
Carefully place a ladder near the area of moss.
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 average garden hose sprays water at 40 to 80 psi.
There will be some granule loss under the moss and lichen.
A light sweeping or a rinse with the garden hose is usually sufficient and most roofs don t even need that.
We apply a special blend of soaps and let the rain rinse it off.
The nfrc was established over 120 years ago and in 2012 they issued this statement.
Apply a storebought or diy cleaning solution to remove the moss.