Attic Mold Causes

Attic mold found in a home in North Carolina

In horror movies, an attic is a place where scary creatures like to hide. But in real life, this is where a real monster may live, a monster that can destroy your property and make you and your family sick: mold.

Mold and mildew not only grows in your attic, but also other places in your home such as under the sink, inside walls, in the basement, and under the carpet. For mold and mildew to grow, there needs to be a source of excess moisture. If an attic has improper ventilation, if the roof leaks, or if water condenses on pipes running through the attic space, then there is a high likelihood of mold developing. Here are four of the most common contributors to mold growth forming in attics:

1. Poor Attic Ventilation

Improper or insufficient attic ventilation can cause several problems. When ventilation is blocked or not working properly, moist air cannot escape, and heat also builds up. Natural airflow not only prevents the growth of mold but also helps bring down cooling costs for your home. Vents, soffit, and fans work together to allow for hot air to escape and fresh air to constantly refresh the attic space. If your attic ventilation system is not working properly or is not sufficiently venting hot air, an inspector can help suggest solutions to solve the problem.

2. Roof Leaks

Another common cause of mold in your attic is roof leaks. Leaks often form around penetrations like vents, plumbing stacks, and skylights. They can also occur after catastrophic damage, like a strong storm that dislodges shingles or a tree limb piercing the roof. Water that seeps into the attic provides ideal conditions for the growth of mold. Even a tiny leak is enough to a cause enough moisture for a colony of mold to grow in your attic. Mold can grow on insulation, plywood decking, joists, and items stored in the attic. If the attic ventilation is poor, it’s even worse, as the moisture is unable to escape.  If instead you have a problem with mold in your Basement and Crawl Space, find information here

3. Improper Vent Exhausting

Vents help moisture levels stay consistent and low in your home. If your bathroom fan, range hood fan, or clothes dryer vent is not properly set up to vent the moist air to the outside, it can be detrimental. If the exhaust vents into your attic, this can cause a build up of moisture and promote mold growth. This is a serious problem because the air is not only moist, but also hot. So if your kitchen, bathroom or dryer vents are exhausting into your attic, consider hiring a professional to redirect them to the outside or if that’s not possible, call a mold professional like us to assess the situation and consider your options.

4. Poor Insulation

While it may not be obvious, condensation and your roof are two things that go hand in hand. The difference in temperature from the inside of your home to the outside of your home can affect your attic and cause condensation when the roof does not have enough insulation. On the other hand, too much insulation can also be a problem. Insulation that traps moisture and prevents airflow can also become a prime spot for mold growth. Mold colonies in your attic can eat away at wood, damage stored objects, and also decrease the air quality. If you see signs of mold or mildew growth on your insulation materials, give us a call for a free assessment.

These are the four main causes of mold in the attic. If you suspect you have water damage or a mold problem in your attic, do not attempt to go up there and remove yourself. Call Hero Mold Company and we will come right away to assess the situation and check the situation and provide a quote on removing any mold we find. We provide free quotes on all our services. All of the locations we service can be found here