How to Remove and Prevent Roof Mold

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How to Remove and Prevent Roof Mold

If you are worried your roof has mold, you should take action immediately. Black mold on roof shingles can make the roof vulnerable to roof leaks, allowing water and mold to spread into the attic and upstairs. Mold can grow on a wet surface within 24-48 hours.

Follow these steps to identify, treat, and prevent roof mold to keep your home safe.

Identifying Roof Mold Damage

It’s important to take action when you see any of the signs below, so your roof can protect the inside of your home from mold spreading. Here are the following indicators you may have roof mold damage:

  • Dark spots
  • Peeling paint
  • Watermarks on ceiling or walls
  • Blistered ceiling plaster
  • Rotting wood in the attic
  • Crumbling drywall
  • Musty attic smell
  • Chimney mold
  • Rotting wood on the interior
  • Discolored rafters
  • Any discoloration on the paint or finish

After wood or drywall absorb water, the mildew and mold can germinate and grow at the surface. You can begin to smell the musty smells and also inhale the harmful toxins in the air. Indoor air pollution contributes up to 50 percent of illnesses in the U.S.

How to Clean Mildew and Mold Off Your Roof

There are many ways to wash off your shingles. You should wash the affected shingles with a bleach mixture to kill the mold. Make sure you protect all your flowers and plants below from any run-off while you clean.

Do not use a power washer to clean your roof or rinse it off. The concentrated stream of water will damage your shingles and can also make it impossible to repel water, which creates a perpetual mold problem.

You can use a brush and scrub the green spots from the roof. You should start brushing from the top and work your way down, so you don’t damage your shingles. You also do not want to make your solution too strong with bleach. 

Do not mix any cleaner that has ammonia with bleach. It will create poisonous chlorine gas. 

If your roof is really bad, you may want to contact a roofing professional to avoid doing any additional damage. Be sure to hire a reputable roofer by doing your research and asking for referrals.

Preventing Mold

One of the keys to prevent mold is to fix any damaged shingles immediately. The holes can let water make its way underneath. 

The other way to prevent mold is to perform regular maintenance around your home. Clean your gutters twice a year in the late fall and early summer. This lets the water flow freely and drain away from your roof.

Make sure your roof can breathe, so it will not generate moisture. Add ridge vents to help your roof ventilate properly.

Keep branches from hanging over your roof. You should have at least three feet between your home and a branch from a tree.

After major storms like blizzards, thunderstorms, or wind, you should have your roof inspected to make sure your roof is intact. Storms can rip off random parts of your roof and allow moisture to get under your shingles.

Looking for More Help?

If you need help with roof mold or looking to update your roofing system, contact us today. We can help you clean your roof properly to prevent future outbreaks. We are happy to help with all jobs big or small.

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