Mold on Roof

Mold on Roof

Gloeocapsa Magma, also known as black algae or roof mold, is often caused by dirt accumulation, mold, or defective shingles. An airborne spore is what spreads the blue-green algae. There are so many roofs with colorful stains from it that it is easy to spread. Heat, moisture, and nutrients are needed for it to grow.

Roof Mold Causes

Mold is usually the result of algae growth. In rainy, humid weather, algae (and other botanical growths like moss and lichens) can take hold and grow quickly on your roof. This causes the roof materials to remain damp, which promotes rot. Throw in excessive moisture from rain and humidity, and you get mold overgrowth. Mold growth can look like soot and dirt and be black, gray, brown, green, or even white in color. While mold often appears as small black spots, it can also emerge white and thread-like.

Mold will spread through your roof and cause damage to various areas of your home and causes your house to look less appealing, and triggers other confusing problems. Even worse, many types of mold are toxic and may trigger health problems, such as dizziness, short attention spans, memory loss, and much more.

Roof Mold is Dangerous

The health effects of roof mold are the same as those caused by other types of mold. People who suffer from allergies or asthma are especially at risk from mold spores that could be inhaled from the roof. If the problem is not addressed, it can erode or eat away at the roof, leading to costly repairs.

Remove Roof Mold

You may spray wash the roof with 1 part water and 1 part bleach to clean off the algae. Let is sit for around 60 minutes before rinsing. If you find bleach and water solution weak for your moldy roof, you may use trisodium.

The most effective cleaning of algae and moss from a roof is a 50:50 mix of laundry strength liquid chlorine bleach, and water. Apply with a sprayer, allow the solution to dwell on the roof surface for 15 to 20 minutes, and then rinse thoroughly with low-pressure water.

A thorough inspection by an experienced roofing professional will determine if any mold is present on your roof. Mold can be removed utilizing a special solution to kill off active mold spores and eliminate any stains.

Do Metal Roofs Get Mold?

The growth of mold, mildew, algae, and moss can cause stains in metal roofing. In rainy or humid coastal regions or on shaded roofs, these growths are most common.
How do I prevent mold on my metal roof?
Installation of zinc or copper strips is a simple and effective way to prevent mold problems on your roof in the future. If you are worried about the effect mold might have on your roof, the help of an experienced roofing contractor can be beneficial.
A metal roof will only grow mold if it is installed improperly. We install many metal roofs and see many roofs installed improperly by others who are cutting corners. A metal roof is installed directly over an old asphalt shingle without strapping or lath and a moisture barrier. The metal roof and asphalt shingles communicate with each other through sweat and condensation due to heat and cold. The moisture has nowhere to go, and there is no way for it to dry, so mold forms between the metal and shingles, and the metal will eventually rust through from the bottom. By the time this hidden damage is seen, it is too late to correct the problem without a costly tear-out of the metal roof and asphalt roof and then replacing the entire roof and possibly all the plywood or OSB roof sheeting.

Other Roof Mold Prevention Tips

  • Trimming tree branches.
  • Clearing debris
  • Keeping the gutters clean
  • Upgrading your shingles.

To extend the life of your roof and your home, proper care and maintenance are essential. By maintaining your roof regularly, keeping it free of debris, and keeping it clean, you can maintain its value.