Method
Soft-washing
Low-pressure chemical cleaning (typically bleach + surfactant) for surfaces too soft for pressure washing.
A cleaning method that uses low-pressure water (under 500 PSI) combined with a dilute sodium-hypochlorite solution + surfactant to clean mold, algae, and mildew off painted surfaces, cedar shingles, stucco, and anything else too soft to pressure-wash. The chemical does the cleaning; the water rinses.
Difference from pressure washing: pressure washing physically blasts dirt off hard surfaces at 2000-3500 PSI. Soft-washing applies a cleaner at garden-hose pressure, lets it dwell 15 minutes, then rinses. Kills mold at the root so it doesn’t return in six weeks.