,,Biscuit'' tile roof cleaning.

That was an interesting experience today. Personally, I never accept any roof cleaning with that kind of tiles. These tiles are breaking so easily and to change them is a nightmare. 
Anyway, I started around 9 am on the north side of the house. Tried a couple techniques but I decided to use my 6meters brush. On that side, mosses was wet and sticked heavily to the tiles so hard to loose and sweep them off. On the south side was much easier, but was more mossy. After the winter will use AlgoClear to make this roof almost new condition.

This is the south side before the cleaning.

The same after the cleaning.