Shreveport Roof Cleaning
Soft-wash roof cleaning for Shreveport, LA. Removes black streaks (gloeocapsa magma), moss, and lichen without damaging shingles. ARMA-compliant. Call (318) 401-2772.
Roof Cleaning Built for Shreveport
Those black streaks running down a Shreveport roof are not dirt and they will not pressure-wash off. They are colonies of gloeocapsa magma, a cyanobacteria that feeds on the limestone filler in modern asphalt shingles and thrives in Louisiana’s humidity. Left alone, the colonies spread one to three feet per year and shorten shingle lifespan by absorbing solar heat the shingle was designed to reflect. Soft-wash chemistry kills the algae at the root and lets the next rainstorm wash the dead growth off, restoring the roof to factory color without ever putting high pressure on the shingles.
The Asphalt Roofing Manufacturers Association (ARMA) explicitly warns against pressure-washing asphalt roofs because high-pressure water strips granules and voids most shingle warranties. Our soft-wash approach uses a 2-3 percent sodium hypochlorite solution applied at fire-hose pressure (less than 100 PSI), the exact method ARMA documents as safe and effective. We never use a turbo nozzle, never use a surface cleaner, and never walk a roof we cannot soft-wash from the eaves with reach extensions.
Shreveport roofs older than 15 years often have heavy north-side staining, especially in shaded neighborhoods like Broadmoor, Highland, and the older parts of South Highlands where mature oaks block direct sunlight. Newer subdivisions in South Shreveport and Stoner Hill see lighter staining but still develop visible streaks within 8 to 10 years thanks to the humidity. A single soft-wash treatment removes years of buildup; a follow-up every 3 to 5 years prevents new colonies from establishing.
What Shreveport Properties Need to Know
Real conditions on Caddo Parish surfaces and how we approach them.
Why Soft Washing Wins on Shreveport Roofs
Pressure washing strips shingle granules, the colored ceramic-coated mineral that protects the asphalt underneath. Once granules are gone, UV exposure cooks the asphalt and the shingle ages 5 to 10 years overnight. Soft washing leaves every granule in place because the chemistry kills the algae at the root and gravity rinses the dead growth on the next rain.
Black Streaks vs Moss vs Lichen
Each grows differently. Black streaks (gloeocapsa magma) cover whole sections; moss (Bryophyta) grows in thick green patches in shaded valleys and behind chimneys; lichen (algae-fungus symbiosis) attaches as raised crusty spots that resist plain pressure. Our chemistry handles all three but the application sequence differs. We identify each on an quote before pricing.
Shingle Warranty Protection
Most shingle manufacturers (GAF, Owens Corning, CertainTeed, Atlas) explicitly require ARMA-compliant cleaning to keep warranties valid. We document our method (chemistry concentration + pressure rating) on every job invoice so the cleaning record stays in your file if you ever need to file a granule-loss or premature-aging claim.
Recent Shreveport Work
Real jobs from Shreveport homes and businesses across Caddo Parish.
Other Shreveport Services
Add any of these to a single visit and save the second-trip rate.
Ready to Get Started?
Contact Ark-La-Tex Pressure Pros today for a free, no-obligation quote. We look forward to working with you.
Roof Cleaning Questions
How long does a Shreveport roof cleaning take?
A standard 2,500 sq ft asphalt roof takes 60 to 90 minutes start to finish. Larger homes with multiple roof planes or steep pitches take two to three hours. We work from the eaves with reach poles, and we never walk a steep Shreveport roof if it can be avoided.
Will the chemistry hurt my landscaping?
No. We pre-rinse, tarp, and post-rinse every landscape bed within the perimeter of the house. The chemistry is biodegradable and breaks down within 48 hours. Shreveport homes with mature azaleas under the eaves get extra care because azaleas are sensitive to runoff, so we use a dedicated catch-rinse for those areas.
How often should I have my roof cleaned in Shreveport?
Every 3 to 5 years for asphalt shingles. Heavy shade, north exposure, or older shingles may need closer to 3 years. Sun-exposed roofs in newer Shreveport subdivisions often go 5 to 7 years. We will photograph your roof and tell you honestly which category yours falls in.
Will it kill the algae permanently?
It kills the existing colonies. New spores reach roofs by air every season, so without prevention they will eventually return. We offer an optional zinc-strip installation along the ridge line that releases a slow zinc rinse during rain, which prevents new growth for 5 to 10 years. Ask for a ridge-strip quote on the same quote.
Do you clean tile, metal, and slate roofs in Shreveport?
Yes. Tile and metal roofs use a different chemistry concentration but the soft-wash method is the same. Slate roofs require the gentlest possible approach and we hand-rinse rather than spray. We do not pressure-wash any roof material, because high pressure damages all of them differently.
What about gutters as part of roof cleaning?
We can clean gutters at the same time at a discounted combined rate. Most Shreveport roof-cleaning customers add gutter cleaning because we are already on-site with reach extensions. Gutter cleaning includes scooping, flushing, and downspout flow check.
Why do Shreveport roofs streak black so quickly?
River humidity feeds Gloeocapsa algae, the organism behind the black streaks, almost year-round. Shaded slopes under Shreveport’s mature tree canopy regrow fastest, which is why the north face always streaks first.
Is softwashing safe for older Shreveport shingle roofs?
Safer than any alternative. Low pressure and proper chemistry kill the growth without disturbing granules, which matters most on older shingles that cannot spare aggregate to a pressure wand.
Do you clean metal roofs in Shreveport?
Yes. Metal takes a gentler detergent approach that lifts mildew and pollen film without spotting the finish, and fastener lines get rinsed downhill so water never works under the panels.
How long will a Shreveport roof stay streak-free?
Three to five years on most exposures after a proper softwash, less under heavy shade. The treatment kills the algae colony at the root rather than bleaching the visible streaks.
Do gutters get cleaned with a Shreveport roof wash?
The gutter faces and the streaking down them, yes, since roof runoff is what stained them in the first place. Interior gutter scooping is its own service and we will quote it in the same visit if you want it.
Ready for Roof Cleaning in Shreveport?
Free, no-obligation quote. Same southern values, same crew, same warranty across the state line, and never a travel fee.