Roof Soft
Washing
Low-pressure roof soft washing that safely removes black streaks, moss and algae from tile and shingle roofs across the Inland Empire and beyond.
Safe Roof Soft Washing for Tile & Shingle Roofs
Your roof is the last surface that should ever see a high-pressure nozzle. High pressure cracks tiles, lifts and tears asphalt shingles, strips protective granules, and forces water under the roofing where it can cause leaks. Roof soft washing is the method manufacturers and roofers actually recommend.
🚫 Never Pressure Wash a Roof
High pressure can void your roof warranty, dislodge tiles, and strip the granules that protect asphalt shingles from the sun. Soft washing uses low pressure and biodegradable cleaning solutions that kill the growth at the root and rinse clean, with no damage to the roofing itself.
What Causes Black Streaks on Roofs?
Those dark streaks running down your roof are usually Gloeocapsa Magma, a hardy algae that feeds on the limestone filler in asphalt shingles and spreads in our coastal and inland humidity. Left alone it holds moisture against the roof, traps heat, and shortens the life of the surface. Our soft wash treatment kills it at the root rather than just rinsing the surface.
What We Treat on Your Roof
- Black algae streaks (Gloeocapsa Magma)
- Green moss and lichen growth
- Mildew and biological staining
- Concrete and clay tile roofs
- Asphalt and composite shingle roofs
Protects Your Roof and Your Wallet
A clean roof reflects more heat, sheds water properly, and lasts longer. Roof soft washing costs a fraction of a roof replacement and helps you get the full life out of the roof you already have. We pre-wet landscaping, protect your gutters, and rinse everything down when we finish.
How Soft Washing Works
Property Inspection
We walk the property and identify algae type, stucco condition and any areas needing extra attention.
Pre-Treatment
We pre-wet nearby plants and landscaping to protect them from cleaning solutions.
Soft Wash Application
Eco-friendly solution is applied at low pressure, penetrating and killing mold, algae and bacteria.
Gentle Rinse & Inspection
We rinse at low pressure and inspect every surface to ensure a complete, even clean.
Roof Soft Washing Questions
Is soft washing safe for my roof?
Yes. Soft washing is the method roofing manufacturers actually recommend. It uses low pressure and biodegradable cleaning solutions to kill algae and moss without cracking tiles, lifting shingles, or stripping protective granules. See the difference between soft washing and pressure washing.
What are the black streaks on my roof?
Those streaks are usually a hardy algae called Gloeocapsa Magma. It feeds on the filler in asphalt shingles and spreads in our humidity. Soft washing kills it at the root so it does not just grow back in a few weeks like a surface rinse would.
Will pressure washing damage my roof?
Yes, it can. High pressure cracks tiles, tears shingles, strips the granules that protect against UV, and can void your roof warranty. That is why we only soft wash roofs. The same risk applies to stucco and other delicate surfaces.
How long does a roof soft wash take?
Most residential roofs take 2 to 4 hours depending on the size, pitch, and how much growth has built up. We give you a clear time estimate when we quote the job.
How much does roof soft washing cost?
Roof soft washing in Southern California starts at $350 and goes up based on the size and pitch of the roof and how much algae or moss has built up. Every quote is free, and we walk the property with you before pricing the job. See our full soft washing cost guide.
Ready for a Cleaner Roof?
Damage-free roof soft washing for tile and shingle roofs across the Inland Empire.