Some people use high pressure water spray to clean the tiles but that can damage the tiles.
Pressure wash roof tiles.
Use water to spray off visible dirt and debris including leaves dead insects and twigs.
Initial power wash using the pressure washer wash the roof s surface.
I took mother nature half of a century to build the green moss on the tile roof and it took me 4 hours to get rid of it sad.
Use water to clean your roof tiles.
With tile most are manufactured with at least a light glazing on top of a slurry coating paint pressure washing tile requires a higher blasting pressure starting at 1500psi up to 3000psi.
Instead soft washing with a garden hose is least likely to chip dent or crack the tiles or panels.
Etching the surface of the tile.
It s better to use an alow pressure water hose and gentle brushes to clean the tiles though only.
While power washing may work to remove algae and mold from your tile roof in the short term it can breed long term headaches such as.
A main concern that people have is that the hard jet of water coming from the pressure washer nozzle is too strong and will loosen or damage the shingles and thus leave the roof porous and vulnerable to rain.
The average garden hose sprays water at 40 to 80 psi.
At this point the tiles become wet and slippery.
This can remove or dull that glazing.
Making the tiles more porous.
Here are the basic steps to cleaning your tile roof.
Cutting through sealants and underlayments.
Now its time to wash the anti moss spray and other debris of the roof.
Pressure cleaning a roof when done properly using rotary cleaning equipment is safe cost effective and will not force water through or under tiles as the jet angle is controlled and always points away and down the roof rather than into or all over the place which is the case when blasting with a lance or wand is used.
When it comes to maintenance you should always avoid pressure washing your tile roof.
Why you should never pressure wash your tile roof.
By comparison a fire hose sprays at 150 to 300 psi.