Power Washing Roof Moss

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

Power washing roof moss. It can take up to 4 to 6 weeks for the moss to come off the roof. Carefully place a ladder near the area of moss. You soft wash a roof. The average garden hose sprays water at 40 to 80 psi.

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 nfrc was established over 120 years ago and in 2012 they issued this statement. Hose off and brush all moss loose from your roof shingles. By comparison a fire hose sprays at 150 to 300 psi.

Power washing takes 5 years off the roof surface. But that is normal. Instead soft washing with a garden hose is least likely to chip dent or crack the tiles or panels. 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.

We apply a special blend of soaps and let the rain rinse it off. You don t ever power wash a roof. The noteworthy exception is roofs that have grown algae mold or moss. 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. If your moss problem requires more than. Pressure washers use 1 300 to 2 800 pounds per square inch to strip dirt moss and even paint from a surface.