Mold vs Mildew: What’s the difference?

Many people don’t know that there is actually a difference between mold and mildew. A fungi is a fungi right? Well, although that may be typically accurate, there are more then a million species in the mold families. All of which are different sources of organic compounds found in our every day environments.

Mold and mildew are types of fungi; typically, mold is black or green, and mildew is gray or white (but not always). Mold tends to grow on organic surfaces, whereas mildew is an issue on damp surfaces, like bathroom walls, basement walls, or fabrics. Mold grows in the form of multicellular filaments or hyphae, while mildew has flat growth. Mildew is often referred to as a kind of mold that is in one general area and isn’t growing or spreading. Mold can contaminate your indoor environment and spread rapidly though spores in the air.

Appearance & Identification:

Without a proper sample it is hard to determine the species of fungi you are dealing with and is best left to the professionals. Visual inspections of the fungi can vary and be hard to determine without proper examination.
Mildew: could be downy or powdery: Downy mildew starts as yellow spots that first become brighter in appearance and then the color changes to brown. Powdery mildew is whitish in color and that slowly turn yellowish brown and then black. This is why it is important to remember that not all black molds are a toxic black mold. Analysis is needed to determine this, and hiring a professional to take the samples so you don’t disrupt the surface and the spores is best.
Mold: has a fuzzy appearance and can be an orange, green, black, brown, pink or purple in color. Can be found in several shapes. Mold tends to grow and spread through out the damp surfaces and will find other damp or wet areas in the home. Mold can travel through the air and contaminate adjacent areas of your home from moving furniture, furnaces, air conditioners, fans and dehumidifiers. If your home has mold or mildew in it, it is best to get everything sampled before preparing the removal process.

Prevention

To prevent mildew at home, keep all the areas moisture-free. There are mildew removers available at stores to eliminate mildew. To protect crops from mildew use mildew-resistant seeds, remove infested plants, avoid overhead heating.

To prevent mold in your home, you need to keep all the areas dry and moisture-free. Check the humidity levels inside the house and take measures to control it. Finish perishable food within 3-4 days.

Prolonged exposure to mold spores can cause health problems such as allergic reactions and respiratory problems, due to the toxins (mycotoxins) it produces.

Mildew can cause damage to crops and other plants it infests. Inhalation of mildew can cause coughing, headache, scratchy throat and lung problems. Mildew can also start growing in lungs and cause other serious health problems.

If you’re concerned about mold in your home, fill out the form to the right or call 1-888-909-6653 to talk to one of our mold experts!

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One thought on “Mold vs Mildew: What’s the difference?

  1. Elisabeth

    Problem people stand on the ground spray up, causing water to be forced under the siding . and moisture to be trapped in some places. AH you say there is drip holes yes there is but siding does not alawys lay level. Guess what he was right i used a pressure washer on my home a few years ago , did a great job when i added on to my home we took the siding off to find Moisture damage in lines .
    Where i did not have to wash the siding nothing . Also the siding cleaner works great too, use wash every year now maybe every 2 .

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