Welcome to the Pure Pressure Washing & Roof Cleaning Blog, your go-to resource for all things related to pressure washing, roof cleaning, and home exterior maintenance. Whether you’re a homeowner looking for tips on how to maintain your property or simply interested in learning more about our services, you’ll find valuable insights and expert advice right here.
At Pure Pressure Washing, we are passionate about helping you keep your home looking its best. In this blog, we share industry news, helpful guides, DIY tips, and more to help you make informed decisions about pressure washing and roof cleaning. We’ll also provide updates about our services, seasonal cleaning advice, and the benefits of maintaining your home’s exterior.
From Cobb County to Cherokee County, Georgia homeowners know their roofs are under constant attack. Humidity, pollen, heavy rains, and relentless sun all contribute to a cocktail of roof-killing contaminants—especially Gloeocapsa Magma, the notorious black-streak algae.
If you’ve spotted dark streaks on your shingles, patches of moss, or even lichen growing on your roof, your home is telling you something: it’s time for a roof soft wash.
This guide breaks down everything you need to know about soft washing, including:
What roof soft washing is and how it works
Why it’s safer than traditional pressure washing
The top benefits of soft washing for Georgia homeowners
Signs your roof needs a soft wash
When to schedule it
How much it costs
And how to choose the right soft washing professional
Soft washing is a low-pressure cleaning method that uses specialized cleaning solutions to eliminate mold, algae, lichen, and moss from your roof without causing damage to shingles or tiles.
Unlike traditional pressure washing, which uses high PSI that can damage roofing materials, soft washing:
Uses low-pressure nozzles
Applies eco-friendly cleaning detergents
Kills contaminants at the root rather than just rinsing them off
Is gentle, safe, and effective
Think of it as a deep clean and disinfection for your roof, rather than a simple rinse.
Georgia's warm, wet climate makes it a breeding ground for biological growth. Here's what homeowners are up against:
ContaminantProblemGloeocapsa Magma (black algae)Creates black streaks, breaks down shinglesMossHolds moisture, lifts shingles, causes rotLichenDigs into shingles, reduces lifespanPollenAccumulates quickly, feeds mold growthRed ClayStains shingles and attracts grime
If left untreated, these invaders can:
Reduce your roof’s energy efficiency
Shorten its lifespan by up to 10 years
Lead to wood rot, leaks, and mold inside the attic
Decrease your home’s curb appeal and value
Inspection
A professional examines the roof, noting problem areas and ensuring the surface is appropriate for soft washing.
Application of Cleaning Solution
A specially formulated mixture of water, sodium hypochlorite, and surfactants is sprayed on using low pressure.
Dwell Time
The solution is left to sit (usually 10–20 minutes), allowing it to kill bacteria, mold, algae, and other contaminants.
Gentle Rinse (if needed)
In some cases, a light rinse is used. In others, rain naturally washes away dead organic matter over time.
Post-Treatment Evaluation
Final check to ensure all areas are treated and safe.
FeatureSoft WashingPressure WashingWater PressureLow (under 500 PSI)High (1,500–4,000 PSI)Cleaning MethodChemical-basedForce-basedSurfaces Used OnRoofs, stucco, siding, delicate woodConcrete, brick, stoneRisk of DamageVery lowHigh for roofs and sidingKills Algae at Root?YesNo, may only remove surface layer
For roofs, pressure washing is not recommended—it can void warranties, blow off granules, and even break shingles. Soft washing is the industry standard.
Soft washing removes contaminants that degrade your shingles and trap moisture.
Avoid rot, leaks, and structural damage by eliminating harmful growth early.
A clean roof drastically improves the look of your home—great for selling or appraisals.
Dark algae absorbs heat. Removing it helps your home stay cooler.
Pressure washing only rinses the surface. Soft washing kills algae, moss, and mold completely.
Asphalt, tile, metal—soft washing works on them all without causing damage.
Most roofing manufacturers specifically recommend soft washing to keep warranties valid.
Not sure if it’s time to clean your roof? Look for these common signs:
Black streaks or staining
Patches of green moss or lichen
Roof looks older than it is
Increased indoor humidity or attic smell
Water stains on ceiling (can indicate roof leaks)
You can’t remember the last time it was cleaned (more than 2 years)
In Georgia’s climate, the sweet spot is every 2–3 years—but it can depend on several factors:
Shade: Heavily shaded roofs need cleaning more often
Surrounding trees: More trees = more debris and organic growth
Roof color: Dark roofs show staining sooner
Humidity levels: High humidity = faster algae growth
Some homeowners opt for annual inspections to stay ahead of any buildup.
Here’s a general estimate:
Roof SizeEstimated Price RangeSmall (under 1,500 sq ft)$250–$400Medium (1,500–2,500 sq ft)$400–$600Large (2,500–4,000 sq ft)$600–$900Extra Large/Complex Roof$900+
Factors that affect cost:
Roof pitch and accessibility
Severity of algae/moss buildup
Multi-story homes
Additional treatments or sealing
Pro tip: Ask if the company includes a warranty or satisfaction guarantee on their soft wash services.
Short answer: Not recommended.
Even though soft washing uses low pressure, the chemical application still requires:
Ladder safety knowledge
Roof safety gear
Professional-grade detergents (not store-bought bleach)
Understanding of roof types and runoff precautions
Precise mix ratios to avoid killing plants or damaging surfaces
Hiring a licensed and insured professional ensures safety and results.
Before you hire, ask these important questions:
Are you licensed and insured?
Do you specialize in roof soft washing (not just general pressure washing)?
Do you use biodegradable, plant-safe cleaners?
Can I see before-and-after photos of your work?
Do you offer a guarantee or follow-up service?
A reputable company will gladly answer these and show you proof of success.
The ideal time to soft wash your roof is:
Late spring to early summer (after pollen has settled)
Early fall (before winter moisture sets in)
Avoid freezing months and always check the forecast—soft washing is best done during dry, sunny periods to allow solutions to work effectively and rinse naturally.
After your soft wash is complete:
Your roof will appear cleaner almost immediately
Some deeper stains or lichen may lighten over several days
Rain will help rinse away remaining residue
You’ll notice cooler attic temps and improved curb appeal
Surfaces will be protected for up to 2–3 years (longer with proper maintenance)
Your roof is your home’s first line of defense—and in Georgia, it needs all the help it can get. Soft washing is a safe, effective, and affordable way to:
Extend roof lifespan
Avoid costly repairs
Improve your home’s appearance
Preserve resale value
Protect your family’s health by eliminating mold and algae
Don't let black streaks, moss, or mildew eat away at your investment.
Get your roof soft washed by a trusted professional in Georgia today.
👉 Request your FREE quote now!
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Service Areas
Acworth
Austell
Kennesaw
Marietta
Mableton
Powder Springs
Smyrna
Vinings
Dallas
Hiram
Alpharetta
Johns Creek
Milton
Roswell
Sandy Springs
Atlanta
Canton
Woodstock
Holly Springs
Ball Ground
Waleska
Frequently Asked Questions
The frequency of house pressure washing can vary depending on factors like your location, climate, and the level of exposure to dirt and grime. In general, we recommend having your house pressure washed every 1-2 years to maintain its appearance and prevent long-term damage. However, our experts can assess your specific situation during a free consultation to provide a more accurate recommendation.
Yes, pressure washing is a safe and effective method for cleaning a wide range of surfaces, including decks and driveways. However, the pressure and cleaning solutions used need to be adjusted based on the material and condition of the surface. Our experienced technicians are trained to use the appropriate techniques and equipment to ensure the best results without causing any damage.
Absolutely. Pressure washing is highly effective at removing tough stains, mold, algae, and other contaminants from your deck or driveway. Our specialized equipment and eco-friendly cleaning solutions are designed to tackle these issues, restoring the surfaces to their original beauty. For stubborn stains, we may also use techniques like hot water pressure washing to achieve the best results.
Professional auto detailing offers several advantages over DIY car washing. Our skilled detailers use specialized tools and products to provide a thorough and meticulous cleaning that goes beyond what can be achieved at home. This not only leaves your car looking showroom-ready but also helps protect its paint, interior, and overall value. We save you time and effort, ensuring your vehicle receives the care and attention it deserves.
Cobb County, GA (Marietta, Smyrna, Kennesaw, Acworth)
Paulding County, GA (Dallas, Hiram, Powder Springs)
Bartow County, GA (Cartersville, Emerson, Adairsville)
Cherokee County, GA (Canton, Woodstock, Holly Springs)
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