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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. Without 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. |
 | Potential health effects and symptoms associated with mold exposures
include allergic reactions, asthma, and other respiratory complaints.
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 | There is no practical way to eliminate all mold and mold spores in the
indoor environment; the way to control indoor mold growth is to control
moisture.
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 | If mold is a problem in your home or school, you must clean up the
mold and eliminate sources of moisture.
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 | Fix the source of the water problem or leak to prevent mold growth.
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 | Reduce indoor humidity (to 30-60% ) to decrease mold growth by:
venting bathrooms, dryers, and other moisture-generating sources to the
outside; using air conditioners and de-humidifiers; increasing
ventilation; and using exhaust fans whenever cooking, dishwashing, and
cleaning.
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 | Clean and dry any damp or wet building materials and furnishings
within 24-48 hours to prevent mold growth.
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 | Clean mold off hard surfaces with water and detergent, and dry
completely. Absorbent materials such as ceiling tiles, that are moldy, may
need to be replaced.
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 | Prevent condensation: Reduce the potential for condensation on cold
surfaces (i.e., windows, piping, exterior walls, roof, or floors) by
adding insulation.
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 | In areas where there is a perpetual moisture problem, do not install
carpeting (i.e., by drinking fountains, by classroom sinks, or on concrete
floors with leaks or frequent condensation).
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 | Molds can be found almost anywhere; they can grow on virtually any
substance, providing moisture is present. There are molds that can grow on
wood, paper, carpet, and foods. |
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 can molds affect my health?
 | Generally, the majority of common molds are not a concern to someone who
is healthy. However if you have allergies or asthma, you may be sensitive to
molds. You may experience skin rash, running nose, eye irritation, cough,
congestion, and aggravation of asthma. Also if you have an immune
suppression or underlying lung disease, you may be at increased risk for
infections from molds. |
 | When necessary, some resourceful molds produce toxins in defense against
other molds and bacteria called mycotoxins. Depending on exposure level,
these mycotoxins may cause toxic effects in people, also. Fatigue, nausea,
headaches, and respiratory and eye irritation are some symptoms that may be
experienced from exposure to mycotoxins. If you or your family members have
health problems that you suspect are caused by exposure to mold, you should
consult with your physician. |
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 & all 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.
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 | 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.
FOR MORE INFORMATION ON MOLD PLEASE VISIT THE
EPA Website.
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