Preventing Mildew

Reducing the amount of moisture and good air circulation help to reduce mold growth. This guide is about preventing mildew.


October 27, 2010 Flag
6 found this helpful

When washing a plastic shower curtain, retard the formation of mildew by adding half a cup of table salt to the rinse water and allowing the curtain to soak for fifteen minutes. Drain washer and remove the curtain. There's no need to spin.

To prevent mildew be sure to spread the shower curtain open after taking a shower. If the shower curtain mildews at the bottom it's probably because it is allowed to rest against the bottom or side of the tub. Try to reposition the bar so that the curtain can hang loose and dry between uses.

By fossil1955 from Cortez, CO

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February 1, 20110 found this helpful

If you buy one of the new cloth curtains, they can be thrown in the washer and hung back up. I wash mine at least every two weeks and leave the rings on it. They cost a little more but you will never have to mess with a plastic curtain again and these cloth ones last for years. I have two. One on the outside of the tub and one on the inside. They do not leak through.

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November 6, 2004 Flag
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Mildew is a common name for household mold that thrives in dark, damp, poorly ventilated places. Chlorine bleach, diluted according to label directions, is a good mildew remover for use on colorfast waterproof hard surfaces.


Mildew can also be controlled by lowering the humidity in a closed-in space such as a closet. In very humid weather, when mildew growth is greatest, use a continuously burning 60 watt bulb in a large closet to raise the temperature (and thereby lower the relative humidity). A smaller bulb can be used in a smaller enclosure. Be certain that the bulb is well away from any stored articles.

By Donna G.

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February 24, 20070 found this helpful

To clean wall boards mix water and bleach and rub down wall and let dry for 2 days before painting or covering . I did this under a window that had leaked and it worked!

Sharon from Canada

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June 15, 20070 found this helpful

A good friend in the field told me that, bleach only sometimes kills the mold and often the mold is not removed. You are often left with dead mold on your walls.

Not only that, but bleach does not work on some surfaces and many people are very sensitive to bleach.

The solution is to remove the mold. A product that I've found that I've really liked is MoldZyme, I found some mold on my bathroom wall, and was able to remove it without taking off any paint. I've also tried it on my back deck, and it worked! I haven't seen the mold come back since then, which was months ago. The manufacturers say that it leaves an antimagnetic finish that prevents dust build up.

MoldZyme is also natural and non-toxic, so I don't have to worry about using it around my little daughter. It's also odorless, no more bleach smell!

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February 10, 20080 found this helpful

I have a very bad mold/black mold problem in my truck. It sat for a while and when we went out it's full of mold. It has Leather seats and steering wheel. Will moldzyme work for me?

Thanks in advance, Keith

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November 4, 2008 Flag
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I have tried just about every cleaning solution out there to get rid of the black mildew that seems to build up around my shower enclosure. I have used mildew resistance caulking, but that does not seem to work.

Debra from Hurricane, Utah

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November 4, 20080 found this helpful

Mildew is a fungus that has to be killed or it will keep coming back. You need to use a strong bleach solution and soak it good. Allow it to set for awhile (as long as you can) and then rinse it off. Should work.

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November 5, 20080 found this helpful

Like the first poster said...bleach should take care of it. There are many cleaners out there that contain bleach. If you have tile flooring...u want to check a small area first to see if the bleach is going to damage the tile more than the mold has. I had this problem at my old house and was told it was because there was no ventilation in the bathroom. We recently moved, remodeled the bathroom and added a ventilation system and I've not had a problem with it yet (it's been 6 months).

If you don't have a ventilation system (AKA: exhaust fan), you might try opening a window or just putting a small fan in the doorway facing outwards to pull the moisture out of the bathroom. Until you get some ventilation in the bathroom you will continue to have this problem. Getting water on the flooring does contribute to the problem but the gist of it is from moisture...humidity.

If you don't want to use bleach you might try apple cider vinegar. It is a very good cleaner, antiseptic, digestive aide, sanitizer, deodorizer and the list goes on. Do a internet search on ACV and you will be surprised at the list of stuff it is good for.

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November 6, 20080 found this helpful

Go to a cheapie store like Dollar Tree, Dollar Store etc. and get a couple bottles of hydrogen peroxide and put this in a squirt type bottle like DAWN. Squirt the porxide in these places and watch it bubble the mold and mildew away. It will be slower returning, too.

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February 1, 20110 found this helpful

I had a terrible mold problem on the caulking. Full strength bleach would not touch it. I bought a cheap gel DISHWASHER soap. I painted this on, make sure surface is dry and be generous. Leave it on. Works like magic even after showers removed the soap. I haven't found anything else that worked!

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January 5, 2005 Flag
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I have heard if you stash a few pieces of charcoal in a corner or two in the bathroom it would absorb moisture and discourage mold. I have used Damp-rid before but it gets too expensive. Has anyone ever tried this or know of any other things to try that are cheap?


January 6, 20050 found this helpful

If you have a serious dampness problem, I can't imagine a few pieces of charcoal will solve the problem. You probably need to investigate the source of the water. Is the shower water getting out during a shower? How? Can you stop it from escaping or can you wipe it up right away? Does the moisture from bathing stay in the air? Open a window or make sure you leave the exhaust fan on long enough (or replace it if it is ineffective). If the sink or toilet is leaking, fix it to save water and to avoid water damage.

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February 16, 20050 found this helpful

I have a really bad problem with moisture too. the shower,tub and toilet area is seperated from the sinks and my washer and dryer. it is so bad that the celing was molded. I have a fan that sucks the air to the out side but oviously it is not enough. I sprayed stuff on the celing to get rid of the mold but i think all it did was cover it up. i may end up replaceing the whole celing. i hope your problem is not as bad as mine i feel for you and i hope there is something or someone out there that can help.

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June 26, 20050 found this helpful

I live in an OLD house, we tore out the celing tile. There's wood underneith. I want to paint the wood, but got to clean the mold off first. I can think of a lot of way's, all are very messy. Any one know how I can get it done with out a lot of mess ?


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May 9, 20090 found this helpful

If you use rubber mats in tub or shower, be sure to pick them after each use and don't put them back until ready for use. This is my main focus and it is probably the main culprit. Good luck


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June 23, 20110 found this helpful

May 3, 2005 Flag
1 found this helpful
1. Keep Things Clean

Keep closets, dresser drawers, basements--any place where mildew is likely to grow--as clean as possible. Soil on dirty articles can supply enough food for mildew to start growing when moisture and temperature are right. Greasy films, such as those that form on kitchen walls, also contain many nutrients for mildew-causing molds.

2. Get Rid of Dampness

Dampness in a basement, or any other structure, is often caused by condensation of moisture from humid air onto cooler surfaces. Excessive moisture may indicate that repairs or additional insulation are needed. Replace cracked or defective mortar. Some basements are continually wet from water leaking through crevices in the wall. Make sure outside drainage is adequate.

3. Control Moisture

For waterproofing concrete and other masonry walls above ground, apply two coats of cement paint, tinted with mineral coloring if desired. Waterproofed coatings to seal absorbent brick and other outside surfaces may be needed.

Spread a layer of moisture-barrier material over the soil in crawl spaces under houses. You can use heavy roofing paper or polyethylene plastic film. Good ventilation is important. If possible, do not enclose the crawl space. In extreme cases, a fan or blower may be needed to move the humid air from under the building.

Cooking, laundering, and bathing may add 2 gallons or more of water a day to the house. If circulation is not adequate use some type of exhaust fan. If your clothes dryer is equipped with a vent, have it exhausted to the outside to remove moist air.

4. Dry the Air

Cool air holds less moisture than warm air. Properly installed air-conditioning systems remove moisture from the air by taking up warm air, cooling it (which removes the moisture) and circulating the cool dry air back into the room. In rooms that are not air-conditioned-especially the basement--mechanical dehumidifiers are useful. A humidistat can be attached to the unit to control the humidity. Mechanical dehumidifiers, however, can add heat to a room.

When using air-conditioners or dehumidifiers, keep windows and doors closed.

5. Heat

Get rid of dampness by heating the house for a short time. Then open doors and windows to let out the moisture-laden air. An exhaust fan may be used to force it out.

Air in closets and other small areas can be dried by using an electric light continuously (60- to 100-watt bulb). The heat will prevent mildew if the space is not too large.

PRECAUTION: Be sure to place the light bulb far enough from clothing and other flammables to avoid the danger of fire.

Chemicals that absorb moisture--may be used to absorb moisture from the air. Follow directions on the label exactly.

6. Circulate the Air When the air outside is drier than that inside, ventilation allows the dry air

to enter, take up excess moisture, and then be carried outside. When natural breezes are not sufficient, you can use electric fans placed in a window, set in a wall, or ducted to the attic to move air from the house.

Poorly ventilated closets get damp and musty during continued wet weather, and articles stored in them are apt to mildew. Try to improve the air circulation by opening the closet doors or by installing a fan.

In addition, hang the clothes loosely so that air can circulate around them. Dry all wet clothing (including clothes wet from rain or perspiration) before putting it in the closet.

7. Get Rid of Musty Odors

Get rid of musty odors as soon as possible to prevent further mold growth. Usually musty odors disappear if the area is well heated and dried. If the odors remain, the following treatment may be necessary.

On cement floors and on tiled walls and floors in bathrooms, get rid of mustiness by scrubbing with a diluted solution of sodium hypochlorite or other chlorine bleach available in grocery stores. Use one-half to 1 cup of liquid household bleach to a gallon of water. Rinse with clear water and wipe as dry as possible. Keep windows open until walls and floors are thoroughly dry.

PRECAUTION: Work quickly and carefully on plastic and asphalt tile to avoid spotting the surface.

This article was written by Anne Field, Extension Specialist, Emeritus, with reference from the USDA bulletin, Mildew. Source: MSU Extension

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October 29, 2010 Flag
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How do I get rid of mildew in closets?

By Joe from Louisburg, NC

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October 30, 20100 found this helpful

I had the same problem years ago. I discovered the moisture was coming from under the house. I didn't have any leaks, just dampness from the dirt. I did two things; 1) insulated the floors under the house, and 2) laid down a vapor barrier (strong thick plastic sheeting). The problem went away almost immediately. This is a project you can do yourself (contractors will charge a fortune). I was in my 40's and single and was able to do it myself with no outside help. The only recommendation I would give you is to wear a bicycle helmet. I can't count the number of times I banged my head on the floor joists!

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