Removing Mildew and Algae From the Roof With Power Washing

The recurring problem of mildew and algae on roofs can be unpleasant and costly. It can cause damage to your roof and even lead to shingles blowing off. Algae and moss can also foster the growth of mold, which is a serious issue that should be addressed immediately.

There are many ways to get rid of moss and algae on the roof, but power washing is a popular option. This is a simple and cost-effective way to remove mildew and algae from the roof without damaging your shingles or siding.

Start by identifying the type of mildew or algae on your roof. It will help you determine how to best remove it and prevent it from returning in the future.

Algae and moss are different types of fungi that grow on various surfaces, including roofs. They require heat, moisture and nutrients to grow.

They also need airborne spores to spread and thrive. The spores are easily carried by the wind and can quickly make their way to nearby roofs.

The black streaks and discoloration that appear on many roofs are commonly mistaken for mold or mildew, but these stains and spots are actually algae. Algae can only grow on humid surfaces, such as roofs.

Although algae can be harmless, if left unchecked, it can cause significant damage to your roof. When left on the roof for too long, it can gradually eat away at your shingles, causing rot and an unsightly appearance.

In some cases, the only thing you can do to eliminate the problem is replacing your shingles with new ones that are darker than the existing shingles and are more resistant to algae. Adding copper or zinc strips to your roof can help prevent algae growth in the future as well.

Removing mildew and algae from your roof through power washing can be a quick and easy process, though you should always use proper safety precautions. Wear rubber gloves and a mask when you’re working on the roof, and be sure to work on the lower part of the house.

For this reason, you may want to consider hiring a professional. A Fairfax, VA power washing company will have the appropriate equipment and know how to power wash the roof properly to avoid damage or injury.

Homeowners can also try using a mixture of bleach and water, or oxygen bleach instead. The latter is less harmful to the environment and will not erode your shingles, as chlorine bleach can.

It can also be used on a wide variety of surfaces, including wood and metal. However, it’s important to note that this method doesn’t work on shingle roofs because the solution will be too concentrated to work on shingles.

Another alternative to removing mildew and algae from your roof is to use a product that can be purchased at your local hardware store. This is a liquid or powdered cleanser that contains hydrogen peroxide, which is an effective and safe way to remove mildew and algae. For more details on power washing visit

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