A beautiful thatched roof without moss and algae. Nowadays this is possible by treating a thatched roof against moss and algae formation. The principle is quite simple, you ensure that the thatched roof remains free from algae formation because this is the breeding ground for moss, so moss can no longer grow on the thatched roof. Now is a favorable time for this due to the weather and the dryness of the thatched roof, which makes the treatment easier. The biggest bonus is a thatched roof that will last longer and looks even nicer.