When moss is developing and flourishing (from October through April), it is excellent to treat and eliminate it. Moss won't develop past the point of standard care on your roof if you treat it once a year.
Zinc, potassium salts of fatty acids, and oxidizing bleaching agents without chlorine are some of the products that should be used cautiously. You can add zinc strips at the roof's peak to stop moss from growing there. Zinc drops from the strips onto your roof as it rains.
A few recommendations before installing a new roof are as follows: pick your roofing material carefully, make certain you are prepared for the noise, avoid being suckered by the lowest prices, choose complete roof removal, enquire in advance about refuse disposal, etc.
Working on roofs presents several risks, including heights and ladders, electricity, noise, hazardous materials, and temperature. Roofers risk serious injury, disease, and death if their company does not reduce these risks.