Roof Soft Washing

Those black streaks on your roof are not just cosmetic — they are algae actively breaking down your shingles, and soft washing is the only safe way to remove them.

The black streaking that appears on Florida roofs is one of the most common and most misunderstood maintenance issues homeowners deal with. It is not dirt or oxidation — it is a type of algae called Gloeocapsa Magma that feeds on the limestone filler in asphalt shingles. Left untreated, it spreads across the entire roof surface, retains moisture, and accelerates shingle deterioration. In Sarasota's humid climate, algae growth on roofs moves fast and the damage compounds over time. What looks like a cosmetic issue is actually shortening the life of the roof underneath it.

High-pressure washing is the wrong solution for a roof and causes real damage when applied to shingles or tiles. The force strips the granule coating from asphalt shingles, voids manufacturer warranties, and can dislodge tiles and flashing. Soft washing uses significantly lower water pressure combined with a cleaning solution that kills the algae, mold, and lichen at the biological level — not just at the surface. The growth dies off and rinses away cleanly without any of the force that damages roofing material. We have been soft washing roofs in Sarasota since 2004 and the process has not changed because it works — and because it does not create new problems in the process of solving the original one.

A soft washed roof looks dramatically different from the street and performs better because the algae that was trapping moisture and degrading the surface is gone. The results also last longer than pressure washing because the growth is killed rather than moved around. If your roof has visible streaking, staining, or green growth along the edges and in the valleys, it is worth addressing before the next Florida summer compounds the damage further. We can assess the condition of your roof surface and give you an honest quote before any work begins.

What We Offer:

Asphalt Shingle Soft Washing — Low-pressure soft washing of asphalt shingle roofs using cleaning solution that kills algae, mold, and mildew without stripping granules or voiding warranties.
Tile Roof Soft Washing — Concrete and clay tile roofs soft washed to remove algae, lichen, and mold growth without the force that dislodges tiles or damages mortar joints.
Black Streak & Algae Removal — Targeted treatment of Gloeocapsa Magma algae — the organism responsible for the black streaking that appears on most Florida roofs over time.
Moss & Lichen Treatment — Moss and lichen removal using cleaning solutions that kill the growth at the root — not just surface removal that allows regrowth within weeks.
Full Roof Surface Cleaning — Complete roof surface treatment from ridge to eave including valleys, dormers, and all sections where organic growth accumulates.
Fascia & Soffit Washing — Fascia boards and soffits cleaned as part of the roof washing process for a complete result across all elevated exterior surfaces.
Gutter Exterior Cleaning — Exterior gutter surfaces cleaned of algae streaking and staining that accumulates on the faces of gutters along with roof runoff.

Why Choose Shawn Christie Painting & Pressure Washing for Roof Soft Washing

Soft Washing Only — No High Pressure on Roofs — High-pressure washing damages shingles, dislodges tiles, and voids warranties. We use low-pressure soft washing exclusively on roof surfaces because it is the correct method — not because it is easier, but because pressure washing a roof creates damage that costs significantly more to fix than the cleaning was worth.
Kills Growth at the Root — Pressure washing moves algae and mildew around the surface. Soft washing uses a cleaning solution that kills the organism biologically so the growth dies and rinses away cleanly. The results last longer and the surface is actually clean — not just visually improved for a few weeks.
Florida Roof Experience Since 2004 — Sarasota's humidity and heat create ideal conditions for algae, moss, and lichen growth on roofs. We have been treating these conditions on local roofs since 2004 and understand how growth patterns develop in this climate and what treatment approach produces lasting results.
Protects Your Roofing Investment — A roof replacement in Florida is a significant expense. Algae and mold left untreated accelerate shingle and tile degradation and reduce the functional life of the roof. Soft washing at the right intervals is a fraction of that cost and extends the life of what you already have.
Owner on Every Job — Shawn Christie oversees every roof soft washing job directly. Work at elevation on a roof surface requires consistent attention to technique and safety — and that oversight is present on every job we take on regardless of the size of the roof.