Most Fort Lauderdale homes have either an asphalt shingle roof or a concrete or barrel tile roof. The two materials look different, age differently, stain differently, and require different cleaning methods. A homeowner who treats both the same way is going to either damage the roof or fail to remove the staining. Understanding the difference matters before hiring any roof cleaning service.
The Two Main Roof Types in Fort Lauderdale
Asphalt shingles are common on inland homes, newer construction, and some HOA-controlled neighborhoods. They are flat, fiberglass-reinforced, asphalt-coated panels with mineral granules embedded on the surface. Those granules carry the color and provide UV protection.
Concrete tile and clay barrel tile dominate much of Fort Lauderdale, especially in upscale neighborhoods like Harbor Beach, Las Olas Isles, Coral Ridge, and Rio Vista. Tile roofs are durable, attractive, and well-suited to Florida's climate and architectural styles. They are also porous and prone to algae and lichen growth.
Both roof types share a common enemy in Fort Lauderdale: Gloeocapsa magma, the cyanobacteria responsible for the black streaks that appear on roofs across South Florida. The growth pattern is similar, but the cleaning approach is very different.
Shingle Roof Cleaning Method
Asphalt shingle roofs should be soft washed only. High pressure can dislodge the protective mineral granules that give shingles their color and UV protection. Once those granules are gone, the underlying asphalt is exposed and the shingle's life is shortened. A pressure-washed shingle roof may look clean immediately but will fail years sooner than it should.
The correct method is application of a low-pressure cleaning solution — typically a sodium hypochlorite-based mix with surfactants — applied with enough dwell time to kill the Gloeocapsa magma at the source. After the dwell time, the roof is gently rinsed or, in some cases, allowed to weather naturally as the dead organism washes off in subsequent rain events. Either way, the cleaning is done by chemistry, not pressure.
The Asphalt Roofing Manufacturers Association (ARMA) recognizes soft washing with sodium hypochlorite as the appropriate method for cleaning shingle roofs. Pressure washing is specifically discouraged.
Tile Roof Cleaning Method
Concrete tile and barrel tile roofs also require soft washing, but for different reasons. The risk on tile is not granule loss; it is mechanical damage. High pressure can crack tiles, displace ridge cap mortar, force water under tile overlaps, and create issues that lead to leaks. Walking on tile roofs improperly can also crack tiles and shift their alignment.
The correct approach uses low-pressure soft wash chemistry applied carefully, with technicians trained to walk tile roofs safely and avoid stress points. The chemistry kills algae, lichen, and bacteria. Lichen in particular is stubborn — the organism roots into the porous tile surface and may take time to fully release after treatment. Some lichen residue may continue to weather off in subsequent rain events even after the roof appears clean.
Why Pressure Washing Either Roof Is the Wrong Move
Door-to-door operators and inexperienced contractors sometimes pressure wash roofs because it produces a fast, visible result. The damage shows up later — granule loss on shingles, cracked or shifted tiles, water intrusion under tile overlaps, voided roof warranties, and accelerated aging on both materials.
Insurance and roofing manufacturer warranties often have specific language about cleaning methods. Pressure washing a roof can void the warranty, which becomes a significant issue if a leak develops later. Always confirm that any contractor uses soft wash methods only.
Pricing: Shingle Roof Cleaning in Fort Lauderdale
Shingle roof soft washing in Fort Lauderdale typically runs $0.20 to $0.30 per square foot. A standard 2,000 square foot single-story home with a shingle roof falls in the $400 to $600 range. Steep pitches, heavy lichen, accessibility challenges, and very dark staining can push the price higher.
Most shingle roofs in Fort Lauderdale need cleaning every 2 to 4 years depending on shade exposure, surrounding tree canopy, and microclimate. Heavily shaded sections may need attention sooner than the rest of the roof.
Pricing: Tile Roof Cleaning in Fort Lauderdale
Concrete and barrel tile roof soft washing typically runs $0.25 per square foot in Fort Lauderdale. A 2,500 square foot tile roof falls in the $600 to $900 range. Larger estate roofs with complex valleys, multiple peaks, or extensive lichen growth can run higher. Roofs with significant lichen may also benefit from a return treatment to address material that releases gradually over time.
Tile roofs in Fort Lauderdale typically need cleaning every 18 to 24 months. Waterfront homes, heavily shaded properties, and homes with overhanging tree canopy may need attention more frequently.
What to Expect During Service
Both shingle and tile roof cleaning include certain professional standards: ground-based application where possible, harnessing for tile roof access, plant protection (pre-rinsing landscaping and tarping where needed), gutter management to control runoff, and post-service walk-through to confirm results.
Some staining begins releasing immediately. Some — especially heavy lichen — releases over weeks as the dead organism continues to weather off. A reputable contractor will explain this expectation up front rather than promise immediate full clarity in every spot.
How to Choose a Roof Cleaning Contractor in Fort Lauderdale
Ask whether the company uses soft washing exclusively. Ask about insurance, including specifically liability coverage for working on roofs. Ask for references on both shingle and tile roofs in Fort Lauderdale specifically — local experience matters because of the climate. Ask how the contractor handles plant protection, runoff, and pet safety. Ask whether the company guarantees the work, and what that guarantee actually covers.
A clean roof is one of the highest-impact exterior improvements a Fort Lauderdale home can make. Choosing the right contractor and the right method is the difference between a result that lasts and a result that creates a bigger problem later.
Need shingle or tile roof cleaning in Fort Lauderdale? Call Bentz Pressure Washing at (954) 235-9434 for professional soft washing on both roof types — done the right way.
Ready to schedule professional roof cleaning for your Fort Lauderdale property?