Interlocking roof tiles are not designed to be walked upon foot traffic.
Jet washing roof tiles.
I liked the green look but.
Older concrete roofs can also begin to leak from small pinholes or porous areas in the tiles that are opened up by the high pressure water jet.
Jet washing a roof causes more trouble than it s worth.
Initial power wash using the pressure washer wash the roof s surface.
Aqua jet make it clean.
The spray is far too fierce.
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.
Just brush off with a stiff brush and check any mortar joints for cracking while up there.
Removal of lichen and moss by jet washing will invariably remove the granular surface finish and potentially damage the structural integrity of the tile this process followed by a surface treatment application would invariably invalidate any tile manufacturer s guarantee.
Roofs are the most important protection to any home from the weather and for this reason its a suprise.
Here are the basic steps to cleaning your tile roof.
22 may 2014 at 11 42am.
Im pleased to see you have commitment to your trade as do i i to have been repairing roofs for 22years and have gained a good knowledge and understandings of roof condition i find that roof coating forms an external vapour barrier putting the sweat on the exterior where it should be jet washing alone can remove surface resistance of concrete tiles but providing a much better appearance.
Use water to spray off visible dirt and debris including leaves dead insects and twigs.