Moss if left untreated on roofs can turn into potentially expensive problems. We can prevent this.
Moss, lichen and algae on a roof disturb the flow of rainwater across the roof surface. Growth thrives where the supply of moisture is best and establishes itself where the slates overlap, especially along the lower edge (the tail end) of the slate. It becomes a self-perpetuating problem and this can lead to a host of associated problems.
The main problems are listed below: