Soft-Wash vs Pressure Wash — What's the Difference?
Softwashing and pressure washing are not the same. Using the wrong one on your roof or render can void warranties and cause thousands in damage.
This is the single biggest thing that separates a proper exterior cleaner from a bloke with a Bunnings pressure gun. Here's what actually happens on your roof, render or driveway.
Pressure washing
High-pressure water (usually 2,000–4,000 PSI) mechanically blasts dirt off a surface. Great for hard, unpainted concrete like driveways and paths. Bad — and often destructive — on tiles, Colorbond, painted render, weatherboard and windows.
Softwashing
Low pressure (around garden-hose pressure) combined with a purpose-built biocide that kills mould, moss and lichen at the spore level. The chemistry does the work, not the water. This is what tile manufacturers, BlueScope Colorbond and paint suppliers actually recommend for roofs and painted surfaces.
The right tool for the right surface
Driveways, paths, pool surrounds → pressure wash with a rotary surface cleaner. Roofs, render, weatherboard, painted brick → soft-wash. Windows and solar → pure-water pole system, no pressure at all. We use all three on the one job — matched to the surface, not the same tool blasted at everything.
Big or small, give Zeb a call. Same-day fixed prices from photos — no site visit needed.