What Is Soft Washing?
Direct Answer
Soft washing is a low-pressure exterior cleaning method (40–100 PSI) that uses professional cleaning chemistry to kill and remove biological growth — mold, algae, mildew, and bacteria — from exterior surfaces. The chemistry does the work, not the water pressure. It is safe for roofs, siding, masonry, wood, and painted surfaces that high-pressure washing would damage.
How Soft Washing Works
Soft washing works by applying a professional cleaning solution at very low water pressure — typically 40–100 PSI, which is comparable to a garden hose. At this pressure, water is a delivery and rinse mechanism only. The actual cleaning is done by the chemistry in the solution.
Professional soft wash solutions contain biocides — compounds that kill biological organisms at the cellular level. When applied to a surface colonized by algae, mold, mildew, or bacteria, the solution penetrates the organisms' cellular walls and kills them permanently. Dead organisms then rinse away with normal rainfall or a final low-pressure rinse.
This is fundamentally different from pressure washing, which physically dislodges organisms through mechanical force without killing them. Soft-washed surfaces stay clean 2–4 years because the biological source is eliminated; pressure-washed surfaces may look clean for 6–12 months but organisms regrow from surviving root systems.
What Surfaces Benefit from Soft Washing
Asphalt shingle roofs
The only safe method — pressure washing voids warranties
Vinyl, wood & fiber cement siding
No water intrusion or surface damage
Brick and masonry
Essential for historic structures
Painted surfaces
No paint stripping or lifting
Wood decks and fences
Kills mold at cellular level
Agricultural buildings
Safe around livestock
Stucco and EIFS
No pressure damage to fragile surfaces
Four-board horse fencing
Safe for painted fences and grazing horses
ClenzO₂: What We Use and Why
We use the ClenzO₂ oxygen-powered cleaning system for virtually all applications. ClenzO₂ uses active oxygen chemistry — not bleach as the primary active agent — to break down and kill organic material. This matters for several reasons:
- Safe around horses, livestock, pets, and children after rinse-down — making it appropriate for horse farms and properties with pets
- Safe for established landscaping — we pre-wet plants before application but ClenzO₂ poses minimal risk even if residual contact occurs
- Biodegradable — breaks down naturally without accumulating in waterways or soil
- EPA-conscious formulation — does not rely on bleach concentrations that can damage ecosystems
- Effective across the full spectrum of biological growth: algae, mold, mildew, lichen, bacteria, and fungi
Soft Washing in Kentucky's Climate
Central Kentucky's humid climate — averaging 45–50 inches of annual rainfall with warm, humid summers — creates ideal conditions for biological growth on every exterior surface. Algae, mold, mildew, and lichen establish themselves rapidly and compound over time.
This makes soft washing particularly valuable in Kentucky. Annual or biennial treatment prevents biological growth from establishing itself deeply enough to cause structural damage. Homeowners and farm owners who maintain regular soft washing schedules consistently report longer surface lifespans, fewer major repairs, and properties that look consistently well-maintained.
About Softwash by Noza ResQ
SoftWash by NOZA ResQ LLC is Central Kentucky's eco-conscious exterior cleaning and property preservation specialist. Based in Berea, KY, we serve a 45-mile radius including Lexington, Richmond, Georgetown, and surrounding communities. All services use our ClenzO₂ oxygen-powered system.
Soft Washing Questions & Answers
Soft washing is a low-pressure exterior cleaning method (40–100 PSI) that uses professional cleaning chemistry to kill biological growth on exterior surfaces. The chemistry does the work, not the water pressure.
Yes. Soft washing is the only method recommended by major shingle manufacturers. High-pressure washing damages shingles and voids warranties. Our ClenzO₂ system kills algae and bacteria safely at low pressure.
Typically 2–4 years because the chemistry kills organisms at the cellular level. Pressure washing results last only 6–12 months because organisms survive and regrow.
ClenzO₂ is an oxygen-powered cleaning system that uses active oxygen chemistry to kill biological growth. It's safe for horses, pets, and landscaping — making it ideal for Kentucky horse farms and residential properties.
Soft washing uses 40–100 PSI with cleaning chemistry. Pressure washing uses 1,500–4,000+ PSI of mechanical force. Soft washing is safer for surfaces, more effective at killing biological growth, and produces longer-lasting results.
We use the ClenzO₂ system, which relies on oxygen chemistry rather than bleach as its primary active agent. This makes it safer for horses, livestock, pets, and landscaping than traditional bleach-based soft wash systems.
Get a Soft Wash Estimate for Your Property
Serving Central Kentucky within 45 miles of Berea. Eco-conscious. Horse-farm safe. Satisfaction guaranteed.