Wondering what is actually being sprayed on your roof? Here is a clear explanation of the roof-safe cleaning solutions professionals use.
Professional roof cleaning relies on the cleaning solution far more than on water pressure. The right chemistry kills moss, algae, and lichen at the root so it does not simply grow back in a few months.
Most reputable companies use a sodium hypochlorite based soft-wash solution, carefully diluted and combined with surfactants that help it cling to the roof and break down organic growth. This is applied at low pressure so your shingles are never damaged.
Because these solutions are strong, professionals protect your landscaping, pre-wet plants, and rinse surrounding areas. This is one of the biggest reasons to hire a trained crew rather than mixing your own chemicals.
When applied correctly, these roof-safe treatments leave your roof clean, protected, and warranty-friendly, with results that last far longer than a simple pressure wash.