I must agree with tom we have cleaned many moss covered roofs throughout the uk pressure washing your roof will not damage it unless you live in a igloo but a sensible interior and exterior investigation before any works are carried out is a must also experience tells you which is the best approach to any project not all roofs can be pressure washed because leaks can appear then an.
Can you pressure wash a slate roof.
When you pressure wash use the minimum force possible to pry the fungus free and wash it from the roof.
We had the privilege of getting ugly off this home.
Once you squeeze the trigger the powerful recoil on the spray wand can throw you off balance and off of a ladder.
We cleaned the stains off the slate roof brick facade gutters and the concrete surfaces.
The water pressure will remove the granules that are important for protecting your roof.
Often the damage is hidden under overlapping slate courses and becomes apparent only when the roof starts to leak.
It is also important to prevent different types of metal from touching.
You can t walk on a slate roof no matter how shallow its pitch.
Naturally not all of these specialized tools will be needed for any given repair but the savvy slate roof owner should be well versed in all of them in order to keep.
From tree sap and or pollution you may need a pressure washer 3800psi.
This wall roof washing attachment has a brush edge and two rotating nozzles.
It is also important to never pressure wash your slate roof or even use too strong a blast from a garden hose.
Not to mention using a pressure washer from a high place is dangerous.
You can easily remove them with a blower or broom.
Remember tile roofs can look very different from when they are wet to finally dry colors can vary so be patient so see the results of your work.
Also slate is slippery when wet.
Are there leaves twigs and other natural debris on your roof.
Slate shingles do not lie flat against each other and can easily snap under pressure.
The unit can be handled to float over the slate.
1 attach a 35 degree spray wand to the pressure washer hose and fill the pressure washer.
We ve heard that a 24 ft extension pole and a 12 5 inch wall washer can work well when attached to a pressure washer.
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.
Never pressure wash your roof if you have asphalt shingles.
Pressure washing can break apart slates or drive water up under slates and cause leaks.
Once you have finished pressure washing the entire roof rinse the put away your equipment and allow it to completely dry.