Wood, composites, masonry, and coated metals—safe thresholds and detergent/dwell strategy
Adopt a surface-first approach to pressure washing: match PSI and GPM to the material, fine-tune nozzle angle, standoff, and dwell time, and run a quick threshold test to prevent damage and clean efficiently.
Start with the surface, not PSI. Use surface-safe PSI/GPM thresholds and a simple decision tree to choose electric or gas, set nozzle and standoff correctly, and avoid damage while cleaning efficiently.
Set a surface-specific pressure washing schedule by assessing materials, environment, and early warning signs, then dialing in safe PSI, nozzle, detergent, and dwell time. Prevent damage and extend the life of wood, masonry, composites, and metals while cleaning more effectively and less often.
