Power Washing Roof Moss

There will be some granule loss under the moss and lichen.

Power washing roof moss.

It can take up to 4 to 6 weeks for the moss to come off the roof. Start with a medium pressure spray pattern and adjust from there accordingly. Apply a storebought or diy cleaning solution to remove the moss. By comparison a fire hose sprays at 150 to 300 psi.

A light sweeping or a rinse with the garden hose is usually sufficient and most roofs don t even need that. But that is normal. Hose off and brush all moss loose from your roof shingles. 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. If your moss problem requires more than. The power of a pressure washer can damage the shingles on your roof so it s important that you select the proper spray tip.

Power washing takes 5 years off the roof surface. The noteworthy exception is roofs that have grown algae mold or moss. You don t ever power wash a roof. Carefully place a ladder near the area of moss.

You soft wash a roof. Hose off and brush all moss loose from your roof shingles. The average garden hose sprays water at 40 to 80 psi.