Some people use high pressure water spray to clean the tiles but that can damage the tiles.
High pressure clean roof tiles.
Plan to wash clay tiles roofs about every two years to keep mold and algae at bay.
Use water to clean your roof tiles.
This will remove all the moss and lichen as well as any built up dirt.
As you did in the previous step walk backwards when you are spraying away from the wet tiles and onto the dry.
It is a quick and easy way to remove all dirt and growth from the surface of your roof.
Give the anti moss spray time to do its job and then use the high pressure cleaner to wash the tiles down.
Operate your pressure washer at 1 200 psi and keep the nozzle at least one foot away from the tiles as you work.
Now its time to wash the anti moss spray and other debris of the roof.
A typical roof is designed to withstand the elements but it isn t designed to protect your roof from water hitting it at such high pressure.
Power washing roof tiles with high pressure devices can damage your roofs underlay and places undo pressure on the material beneath the tiles which can cause ripping and tearing.
Rent or buy a pressure washer and clean your tile roof using a solution of 1 percent household bleach to water.
This can achieve great looking results with minimal outlay of effort.
Clean the roof tiles with a high pressure water spray.
This is done from top to bottom in order to avoid water under the tiles.
Working on cleaning a tile roof which wasn t cleaned for the last 5 years.
Any identified faults need to be repaired before roof cleaning commences because high pressure spray could cause roof leaks if the tiles are compromised.
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.
The ridge of a roof i e the high point where two tiled roof surfaces meet should be checked and cleaned along with the integrity of all cement bedding under each tile.
It s better to use an alow pressure water hose and gentle brushes to clean the tiles though only.
Cleaning with high pressure.
Because of the rotary motion of the dirt blaster and the strength with which the water is sprayed onto the roof tile mosses and algae will be removed easily.
At this point the tiles become wet and slippery.