The presence of moss can cause severe effects on your roof tiles. If you don’t clean your roof on time, it will spread out of control, and tiles will deteriorate with time and it is mandatory of moss prevention treatment . This is because these organic matters need water to grow, and once it is raining, they start developing themselves. So when rainwater falls on your roof, it starts causing damage to roof tiles due to the presence of moss. This rainwater comes down damaging, saturating, and causes long-term dampness.