Never pressure wash your roof. Wicked Washers CTX uses the manufacturer-recommended soft wash method to safely remove black streaks, algae, moss, and lichen — extending your roof's life without voiding the warranty.
Asphalt shingles have a protective granule coating that gives them weather resistance, UV protection, and color. High-pressure water strips those granules instantly — and most shingle manufacturers explicitly state that pressure washing voids your warranty.
Soft washing applies a cleaning solution at near-zero pressure. The chemistry does the work, killing algae, moss, and lichen at the root. Rain gradually washes away the dead material over the following weeks.
Different biological growth requires different approaches. Our team identifies exactly what's on your roof before selecting the treatment mix.
| Growth Type | Appearance | Treatment | Timeline |
|---|---|---|---|
| Gloeocapsa Magma Algae | Black/dark gray streaks running down slope | 3–4% SH mix, standard dwell | Immediate improvement; full lift in 1–2 rain cycles |
| Moss | Green/brown clumps on north-facing slopes | 4–5% SH, longer dwell, gentle rinse | Dead in days; fully lifted in 2–4 weeks |
| Lichen | Crusty gray-green patches bonded to shingles | 5–6% SH, multiple treatments if severe | May take several rain cycles to fully lift — set expectations |
| General Mildew/Mold | Dark patches, often on shaded areas | Standard 3–4% SH mix | Fast — 1 application usually sufficient |
Algae and moss trap moisture against shingles, accelerating deterioration. Regular cleaning can add years to your roof's functional life and delay expensive replacement.
Most shingle manufacturers (GAF, Owens Corning, CertainTeed) specify soft washing as the approved cleaning method. Pressure washing voids coverage — soft washing maintains it.
A roof that looks black and stained may have years of life left — the staining is biological, not structural. Cleaning costs a fraction of what a new roof does.
We pre-wet all landscaping, maintain continuous plant rinsing during treatment, and do a full vegetation rinse at completion. Our stronger roof wash mix requires extra plant care — we take it seriously.
A clean roof transforms the appearance of your entire home. Real estate professionals consistently cite roof condition and appearance as a top factor in buyer first impressions.
Soft washing kills growth at the root. Results typically last 2–5 years in Waco's climate — far longer than any rinse-only approach.
We assess the roof from the ground and from a ladder — identifying growth type, pitch, and any structural concerns. We confirm scope before any work begins.
We cover sensitive plants near the foundation with tarps, pre-wet all landscaping within 20 feet, and set up continuous rinsing for surrounding vegetation during treatment.
Using a 12V pump system, we apply the SH + surfactant mix starting at the bottom edge and working upward — preventing untreated chemical from running under already-treated areas.
We allow 15–25 minute dwell time depending on growth type. The solution must stay wet — we'll re-apply if drying begins. Do not rush this step.
After dwell, we rinse with low pressure — just enough to remove chemical residue. The goal is not to blast off the dead growth; rain will handle that over the coming weeks.
We thoroughly rinse all landscaping and walk the completed job with you. Expect continued improvement over the next 2–4 weeks as rain removes residual dead material.
Free, no-obligation quote within one business day. Serving Waco, TX and all of Central Texas.
Tell us about your roof — we'll handle the rest.