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Tips for Fighting MoldWithout mold, we would find ourselves wading neck-deep in dead plant matter. And we wouldn’t have great foods and medicines, such as cheese and penicillin. However, problems arise when mold starts digesting organic materials we don’t want them to, like our homes.What are molds?
With more than 100,000 species in the world, it is no wonder molds can be found everywhere. Neither animal nor plant, molds are microscopic organisms that produce enzymes to digest organic matter and spores to reproduce. These organisms are part of the fungi kingdom, a realm shared with mushrooms, yeast, and mildews. In nature, mold plays a key role in the decomposition of leaves, wood, and other plant debris.
Where can I find mold?
Molds thrive in warm and humid conditions, but you can find them year-round in virtually every type of environment, both indoors and outdoors. You’ll find them outdoors in shady, damp areas and places where leaves or other vegetation is decomposing. Indoors you will find them in basements, showers and in other areas where humidity levels are high. It’s worth noting that you can use the terms “mold” and “mildew” interchangeably, although mildew is often applied to growth of fungi on fabrics, window sills or bathroom tiles.
How do molds grow in my home?
Once mold spores settle in your home, they need moisture to begin growing and digesting whatever they are growing on. There are molds that can grow on wood, ceiling tiles, wallpaper, paints, carpet, sheet rock, and insulation. When excess moisture or water builds up in your home from say, a leaky roof, high humidity, or flooding, conditions are often ideal for molds. Longstanding moisture or high humidity conditions and mold growth go together. Realistically, there is no way to rid all mold and mold spores from your home; the way to control mold growth is to control moisture.
How can I be exposed to mold?
When molds are disturbed, their spores may be released into the air. You then can be exposed to the spores through the air you breathe. Also, if you directly handle moldy materials, you can be exposed to mold and mold spores through contact with your skin. Eating moldy foods or hand-to-mouth contact after handling moldy materials is yet another way you may be exposed.
How do I know if I have a mold problem?
You may have seen white thread-like growths or clusters of small black specks along your damp bathroom or basement walls, or smelled a “musty” odor. Seeing and smelling mold is a good indication that you have a mold problem. However, you cannot always rely upon your senses to locate molds. Hidden mold can be growing behind wall coverings or ceiling tiles.
Common places to find mold are in areas where water has damaged building materials and furnishings perhaps from flooding or plumbing leaks. Mold can also be found growing along walls where warm moist air condenses on cooler wall surfaces, such as inside cold exterior walls, behind dressers, headboards, and in closets where articles are stored against walls. Rooms with both high water usage and humidity, such as kitchens, bathrooms, laundry rooms, and basements are often havens for mold. If you notice mold or know of water damaged areas in your home, it is time to take action to control its growth.
How can I control mold growth in my home?
Fix any moisture problems in your home:
Stop all water leaks first. Repair leaking roofs and plumbing fixtures. Move water away from concrete slabs and basement walls.
Increase air circulation within your home, especially along the inside of exterior walls, and ventilate with fresh air from outside. Provide warm air to all areas of the home. Move large objects away from the inside of exterior walls just a few inches to provide good air circulation.
Install and use exhaust fans in bathrooms, kitchens, and laundry rooms.
Ventilate and insulate attic and crawl spaces. Cover earth floors in crawl spaces with heavy plastic.
Clean and dry water damaged carpets, clothing, bedding, upholstered furniture within 24 to 48 hours, or consider removing and replacing damaged furnishings.
Vacuum and clean your home regularly.
How do I clean up mold?
The time you are most likely to stir up spores and be exposed is the very time you are trying to clean up your mold problem. That’s when you need to be the most careful. First, try to determine the extent of the mold infestation. If the area is small and well-defined, you can do the clean up, as long as you are free of any health symptoms or allergies. However, if the mold problem is extensive, such as between the walls or under the floors, you should leave clean up to a professional.
Large Areas:
1. Consider having a professional cleanup the area. To find a professional, check under “Fire and Water Damage Restoration” in your Yellow Pages. If you decide to clean up on your own, follow the guidance below.
2. Protect yourself by using goggles, gloves, and breathing protection while working in the area. For large consolidated areas of mold growth, you should use an OSHA (Occupational Safety & Health Administration) approved particle mask.
3. Seal off area from the rest of your home. Cover heat registers or ventilation ducts/grills. Open a window before you start to clean up.
4. Remove all your furnishings to a neutral area to be cleaned later. Follow cleaning directions below.
5. Bag all moldy materials, you will be discarding.
6. Scrub all affected hard surfaces: First with a mild detergent solution, such as laundry detergent and warm water. Then use a solution of 1/4 cup bleach to one quart of water. Wait 20 minutes and repeat. Wait another 20 minutes. Last, apply a borate-based detergent solution and do not rinse. This will help prevent mold from growing again. To find a borate-based detergent, read the ingredients listed on the package label for borates.
7. Give the entire area a good cleaning. Vacuum floors, and wash bedding and clothes if exposed.
Small Areas:
1. Protect yourself by using goggles, gloves, and breathing protection while working in the area. For small isolated areas of mold growth, a cotton dust mask should do.
2. Seal off area from the rest of your home. Cover heat registers or ventilation ducts/grills. Cover all your furniture. Open a window before you start clean up.
3. Bag all moldy materials, you will be discarding.
4. Scrub all affected hard surfaces: First with a mild detergent solution, such as laundry detergent and warm water. Then use a solution of 1/4 cup bleach to one quart of water. Wait 20 minutes and repeat. Wait another 20 minutes. Last, apply a borate-based detergent solution and do not rinse. This will help prevent mold from growing again. To find a borate-based detergent, read the ingredients listed on the package label for borates.
5. Give the entire area a good cleaning, vacuum floors, and wash bedding and clothes if exposed.
Clean all furnishings exposed to mold.
Permeable and washable: Such as clothing, bedding, and other washable articles. Simply run through the laundry.
Non-permeable and washable: Such as wood, metal, plastic, glass, and ceramics. Mix a solution of one cap bleach to one quart of water. Bleach may fade colors, so test your beach solution before using. If fine, wipe down your articles.
Permeable but not washable: Such as beds and furniture. If these furnishings are moldy, you should consider discarding and replacing them. If you decide it is a keeper, take the furnishing outside. Give it a good vacuuming, and let it air out. When finished, if you do not notice an odor it should be okay. However, watch for any mold growth or health problems.
How can I decrease exposure to mold?
If you know that you are particularly sensitive to mold, avoid compost piles, cut grass, wooded areas and other outdoor areas more conducive to high mold concentration. Inside your home, you can slow mold growth by keeping humidity levels between 40% and 60%, and ventilating showers and cooking areas. If there is mold growth in your home, you should clean up the mold and fix any leaks. You can remove mold growth from hard surfaces and minimize their allergenic effects by using commercial products, soap and water, or a weak bleach solution (1 cup of bleach in 1 gallon of water).
Specific recommendations:
Keep the humidity level in the house between 40% and 60%.
Use an air conditioner or a dehumidifier during humid months.
Be sure the home has adequate ventilation, including exhaust fans.
Add mold inhibitors to paints before application.
Clean bathrooms with mold-killing products.
Do not carpet bathrooms and basements.
Remove or replace wet carpets and upholstery.
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