Power Washing Roof Moss

Apply a storebought or diy cleaning solution to remove the moss.

Power washing roof moss.

Always stand on a dry area of the roof as wet shingles can be very slippery. The average garden hose sprays water at 40 to 80 psi. Start with a medium pressure spray pattern and adjust from there accordingly. Power washing takes 5 years off the roof surface.

It can take up to 4 to 6 weeks for the moss to come off the roof. A light sweeping or a rinse with the garden hose is usually sufficient and most roofs don t even need that. 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.

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. The noteworthy exception is roofs that have grown algae mold or moss.

The nfrc was established over 120 years ago and in 2012 they issued this statement. You soft wash a roof. Hose off and brush all moss loose from your roof shingles. Pressure washers use 1 300 to 2 800 pounds per square inch to strip dirt moss and even paint from a surface.

If your moss problem requires more than. But that is normal. The power of a pressure washer can damage the shingles on your roof so it s important that you select the proper spray tip.