Then spray the cleaner onto the shingles photo 1.
How to wash slate roof.
Spray the roof with plain water to dislodge loose dirt and debris.
Don t brush against the direction of the slate since this can loosen or damage your slate tiles.
Wait about 20 minutes then rinse.
When having the slate cleaned it should be only be done from a ladder or lift to avoid damage to the roof.
Doing this ensures that debris is always heading in the right direction off your roof.
Ice dams can also form when ice melts and refreezes further down the roof and thus prevents natural run off.
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Start at the ridge of your roof the top and spray down toward the gutters.
Most slate roofs tend to be older so it is safe to assume that any slate roof is fragile and prone to damage.
Limit cleaning to removing organic debris and delaminated slate flakes from valleys snow guards gutters and the area behind the chimney.
The slates are 9 years old and had a build up of moss algae compounded by tree sap.
Push the brush across the slate working downward.
Their team of experts and professional cleaning tools will be able to get the grime dirt and trash that may be able to end up on a roof over time.
When you check the roof before winter make sure you remove all of the debris and foreign matter from the roof.
In fact slate shingling has such a reputation for resilience that it has been nicknamed the hundred year roof but if you want your slate roof to last the advertised century it is important to use to right tools for installation and repair and to understand how to keep it at its best.
A vinyl leaf rake can clean harder to reach spots.
The photo above shows a slate roof during a cleaning.
Use heavy rubber gloves to scoop up material in areas you can safely reach.
Using a pressure washer set to a low psi rinse loose debris off your roof with clean water.
Before applying the cleaner spray the roof with water to cool it down.
That ll prevent the cleaner from drying out too quickly.
Brush across the section of roof you rinsed to remove all moss algae or stains.
Uniklean slate roof soft washing is the expert slate roof cleaning company to go to if you are worried that your roof may be getting unsightly.
If you don t this can cause ice to form on your slate roof and crack the tiles.