
In colder weather, the water held by moss freezes, causing tiles to crack. By removing the moss, you stop this structural decay and significantly extend the life of your roof.

Moss can slide into your gutters, this can cause water to overflow that leads to exterior walls becoming damp. Heavy gutters can pull away from the fascia.

Moss can absorb heat, in the summer this can lead to heat soak, making your home uncomfortably hot and forcing cooling systems to work harder, leading to damage.