Roof Algae Removal: Why You Have Black Streaks and How to Get Rid of Them

What Causes Black Streaks on Roofs?

Those dark streaks are often caused by algae that feeds on materials in shingles and thrives in humid conditions.

Over time, algae growth can trap moisture and contribute to uneven aging of roofing materials.

Why High-Pressure Washing Is a Bad Idea

Blasting a roof with high pressure can strip away protective granules and shorten the life of your shingles.

It can also drive water under shingles and into the roof system, increasing the risk of leaks.

How Soft Wash Roof Cleaning Works

Soft washing uses low pressure and specially formulated cleaners to break down algae and staining.

The solution is allowed to dwell and then rinsed away, leaving the roof looking cleaner without harsh mechanical force.

How Often Should You Clean Your Roof?

Most roofs only need cleaning every few years, depending on shade, humidity, and nearby trees.

Addressing algae early can make cleaning easier and help your roof look better for longer.

When to Call a Professional

Roof work can be dangerous, especially on steep or multi-story homes.

A professional soft washing company has the tools and experience to work safely and choose the right cleaning method for your roofing material.

Need Professional Help?

If you would rather have a trusted team handle the cleaning, A&T Soft Washing provides soft washing and pressure washing across Michigan, Texas, and Northern Indiana.

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