Power Washing Roof Moss

It can take up to 4 to 6 weeks for the moss to come off the roof.

Power washing roof moss.

You don t ever power wash a roof. The nfrc was established over 120 years ago and in 2012 they issued this statement. Always stand on a dry area of the roof as wet shingles can be very slippery. If your moss problem requires more than.

Power washing takes 5 years off the roof surface. There will be some granule loss under the moss and lichen. By comparison a fire hose sprays at 150 to 300 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.

A light sweeping or a rinse with the garden hose is usually sufficient and most roofs don t even need that. You soft 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. Hose off and brush all moss loose from your roof shingles.

But that is normal. Apply a storebought or diy cleaning solution to remove the moss. The average garden hose sprays water at 40 to 80 psi. We apply a special blend of soaps and let the rain rinse it off.

Instead soft washing with a garden hose is least likely to chip dent or crack the tiles or panels. The noteworthy exception is roofs that have grown algae mold or moss. Carefully place a ladder near the area of moss.