Mold is dangerous, even when it appears on your roof. It can pose a threat to your roofing system. If left alone, it will grow and affect your roof’s overall performance. In addition, it can be dangerous because mold spores are dangerous when inhaled for a person’s health, especially if they have health problems. Your roofing system must be free from mold if you plan on selling your roof. So, homeowners should be able to spot roof mold when it appears on their roof quickly.

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Signs of Mold

How do you know when you have mold on your roof? Well, if you can see any of the following symptoms, you should check for mold.

– black or dark discoloration (rust) on roofing nails (likely indicates roof leaks which provide moisture source for roof mold infestation)

– roof leaking, water stains, or mildew (has roof rain gutters or metal pipes been cleaned out lately?)

– roof surface sections that are separated, buckling, or missing shingles (check to see if you can push your finger into the roofing materials between these sections – could be due to roof decay that exposes roof joists allowing water penetration and rotting wood – resulting in roof mold growing)

– brownish residue/stains on tiles or shingles (“mud” looking stuff is likely the result of algae forming because of excess moisture caused by lack of airflow around roof tiles or roof shingles)

– roof shingles curling (indicates roof water leakage – roof mildew growth that eventually lead to mold)

– roof surface section that is excessively soft to the touch (roof mold growth may occur because of roof decay allowing water penetration which can rot roof rafters, beams, and other roof framing material)

– efflorescence on roof tiles/shingles and surrounding areas (the whitish powdery stuff that forms around tile edges is caused by minerals in rainwater dissolving out of the mortar joints between roof tiles. This same type of buildup occurs between roof shingles as well).

Ways to Prevent Mold

There are ways to stop mold from creating health risks to your house, and some simple methods include roof tarping or roof covering replacement of mold infestations. Trimming trees can also help reduce mold and mildew due to reduced roof leaks from tree-related damages. Sunlight (natural roof dehumidifiers) and ventilation (moving roof air such as roof wind turbines) can also help reduce these common signs of mold problems.

Clean It

There are also cleaning methods to stop toxic molds that quickly spread throughout a leaking roof. Bleach is not an effective method of removal for even the first sign of roof mold because bleach does not kill mold spores but only kills the fungi exposed at the time of application like moss growth. It is recommended that you use a PH-neutral cleaner or one specifically formulated for killing mold. Using cleaners with added bleach may be more effective than straight bleach, but it will not protect your roof against future toxic mold growth.

A Helping Hand

It’s best to take preemptive action before you have roof problems that result in roofing repairs, roof replacement costs, water damage, foundation damage, or a musty odor that affects a home’s air quality (especially dangerous for those who have allergic reactions). If you need roof repair based on roof leaks caused by roof decay or other visible signs, contact a contractor who can perform a quick roof inspection, give a free estimate, perform the necessary maintenance, and is knowledgeable about roof mold.

Folks, roof maintenance is essential to toxic mold growth prevention. If you are having roof problems, I hope this blog post can be helpful in your search for information about roof repair, roof leak repair, or roof replacement costs.

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