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You may have a black mold problem if you see a black cluster of furry growths on your roof. Black mold, or Stachybotrys chartarum, is a toxigenic fungus. This fungus grows in poorly ventilated and moist environments. It is not toxic but produces harmful mycotoxins that cause human health problems.

Removal of black mold on roof can be challenging. You would have to keep yourself safe and prevent the reseeding of the fungal spores on the roof. So, this article serves as an expert guide to cleaning black mold on roof. This article does not replace professional expertise. You may need professional services if there is massive mold growth on your roof.

Removal of Black Mold on Roof

Removing black mold on roof is a stepwise process. It involves the following steps:

1. Fix the Cause of Moisture

Black mold grows in places with persistent humidity. This may result from faulty pipes or leaky roofs. Whatever the cause, you should fix it before trying to remove the mold. It would best to observe the roof for water stains, and your home’s plumbing.

If pipes are faulty, you may need professional services to help change the faulty pipes.

2. Use Personal Protective Equipment

To clean black mold on roof, you must kit yourself properly. The fungal spores can stick to your clothes, and you may become a fomite. To be safe, wear a coverall, gloves, respirator, and goggles to protect yourself. This also protects you from the fumes of the cleaning chemicals as you work on the roof.

If you are climbing the roof, wear shoes that give your feet proper traction and stability. Your safety always comes first whenever you work.

3. Cover or Move Your Plants

Black mold is a fungus that can also affect plants. So, before cleaning, you may want to relocate house plants or cover them up. This also protects them from the harmful effects of the cleaning agents. It is crucial to water these plants before cleaning the roof. Watering plants prevents the chemicals from sticking or getting absorbed into the plants.

4. Clean the Affected Areas

Using chlorinated bleach or vinegar can help dislodge the black mold from the roof. Scrub the areas with the highest build-up first, and work your way to other areas on the roof. Keep your respirator on for this process to avoid inhaling the fungal spores as you clean.

Spray the entire length of your roof. It would help to keep spraying the chemicals until there is a run-off. Applying anti-fungal sprays is also necessary to prevent a recurrence of mold growth.

Desiccation and ventilation are crucial in keeping black mold away from your roof. A dehumidifier can help to reduce the moisture in your living space.

5. Routine Checks

A great homeowner cares enough to observe their home routinely. This includes routine plumbing, electrical wiring, and structural checks. It alerts you to faults as soon as they develop and helps you to save management and repair costs.


It is crucial to keep unfriendly tenants away from your living space. Chief among them is the black mold. It defaces your house and décor and poses a health threat to you and your pets.

This article summarizes the steps involved in removing black mold on roof. Yet, you may need professional services if the mold growth is massive and requires expertise for removal.

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