Why Florida Roofs Get Black Streaks (and How Soft Washing Fixes Them)
If your roof has dark streaks running down it, that is not dirt and it will not rinse off. It is a blue-green algae called Gloeocapsa magma, and Florida humidity feeds it all year.
Why high pressure is the wrong tool
Blasting a shingle roof with high pressure tears off the protective granules and can void your warranty. That is why we never pressure wash a roof. We soft wash it instead.
How soft washing works
Soft washing uses low pressure plus a professional cleaning solution that kills the algae at the root. The streaks lift, the roof goes back to its real color, and because the growth is dead rather than just rinsed, it stays clean far longer.
Heavy streaks on your roof or siding? Get a free instant estimate and see your price today.
Frequently asked questions
Will soft washing damage my shingles?
No. Soft washing uses low pressure, well below what could lift granules. It is the method roofing manufacturers recommend for cleaning.
How long until the streaks come back?
Because soft washing kills the algae rather than just rinsing it, most Space Coast roofs stay clear for several years before they need another treatment.
Get your free instant estimate
See a ballpark price in 30 seconds. No obligation. Fully insured.
Get My Free Estimate