If you’ve noticed black streaks, green patches, or dark discoloration on your roof, you’re not alone. Florida’s warm, humid climate makes rooftops a prime target for algae, mold, and mildew growth. At Kelly’s Pressure Cleaning, we use a safe and highly effective soft washing method to clean roofs throughout Lakeland, Bartow, Mulberry, Winter Haven, Auburndale, and Plant City—without damaging shingles or reducing roof life.

While it may be tempting to grab a pressure washer and blast the dirt away, doing so can cause serious damage. Here’s why soft washing is the only roof cleaning method we recommend.

What Is Soft Washing?

Soft washing is a low-pressure cleaning technique that uses specially formulated, eco-friendly detergents to:

  • Break down algae, mold, and mildew

  • Gently lift away dirt and discoloration

  • ️ Sanitize the surface and prevent future regrowth

It’s safe for all roof types, including:

  • Asphalt shingles

  • Tile roofs

  • Metal roofing

  • Slate and composite materials

Why Pressure Washing Should Never Be Used on Roofs

Traditional pressure washing may clean visible stains, but it also:

  • Strips away protective granules from shingles

  • Loosens tiles or forces water under the roofing structure

  • Voids your roofing warranty

  • Causes long-term moisture damage and potential leaks

That’s why we always use a soft wash system with low pressure and professional-grade solutions designed for roofing materials.

What’s Causing Those Black Streaks?

Those dark marks on your roof aren’t just dirt—they’re usually caused by Gloeocapsa magma, a type of blue-green algae that feeds on roofing materials.

Left untreated, it can:

  • Eat into the shingles

  • Reduce your roof’s reflective abilities (causing higher cooling bills)

  • Attract additional mold, lichen, and moss

  • Shorten your roof’s lifespan significantly

Our soft washing system kills this growth at the root—not just on the surface—giving you longer-lasting results.

Benefits of Soft Washing Your Roof

  • Enhances curb appeal – A clean roof dramatically improves the appearance of your entire home.

  • ️ Extends roof life – Removing organic buildup helps prevent rot, decay, and shingle failure.

  • Improves energy efficiency – Clean shingles reflect sunlight better, helping reduce cooling costs.

  • Boosts home value – If you’re preparing to sell, a freshly cleaned roof adds visual impact and buyer confidence.

  • ✅ Safe, proven, and recommended by roofing manufacturers

Why Homeowners Trust Kelly’s Pressure Cleaning

Since 1998, Kelly’s has been protecting homes across Polk County with professional soft washing services. We use the right method for every job—especially for sensitive areas like your roof.

✔️ Locally owned & operated
✔️ Over 25 years of experience with Florida roof types
✔️ Fully licensed and insured
✔️ Biodegradable, eco-friendly detergents
✔️ Senior, veteran, and referral discounts
✔️ 100% satisfaction guaranteed

Call (863) 860-3682 or visit kellyspressurecleaning.com to schedule your roof soft wash today.

Protect your home from the top down—choose soft washing done right with Kelly’s Pressure Cleaning.