When to Call a Pro for Mold Removal in Minneapolis

When to call a professional for your mold removal depends on a number of factors.

One consideration is the size of the mold problem. If the moldy area is less than about 10 square feet (less than roughly a 3 ft. by 3 ft. patch), in most cases, you can handle the job yourself.

If you already have a mold problem in Minneapolis– ACT QUICKLY. Mold damages what it grows on. The longer it grows, the more damage it can cause.

• If there has been a lot of water damage, and/or mold growth covers more than 10 square feet, consult 24 Restore for removal.
• If you suspect that the heating/ventilation/air conditioning (HVAC) system may be contaminated with mold (it is part of an identified moisture problem, for instance, or there is mold near the intake to the system), consult with 24 Restore about having the Air Ducts in Your Home Cleaned before taking further action. Do not run the HVAC system if you know or suspect that it is contaminated with mold – it could spread mold throughout the building.
• If the water and/or mold damage was caused by sewage or other contaminated water, then call 24 Restore who will send out a trained professional who has experience cleaning and fixing buildings damaged by contaminated water.

Mold Cleanup Guidelines

Tips and techniques

The tips and techniques presented in this section will help you clean up your mold problem if it is small enough for you to handle on your own. Please note that mold may cause staining and cosmetic damage. It may not be possible to clean an item so that its original appearance is restored. 24 Restore has specialized training in this process with a very high success rate on restoring and the largest “on site” contents cleaning in Minnesota.

Fix plumbing leaks and other water problems as soon as possible. Dry all items completely.

• Scrub mold off hard surfaces with detergent and water, and dry completely.
• Absorbent or porous materials, such as ceiling tiles and carpet, may have to be thrown away if they become moldy. Mold can grow on or fill in the empty spaces and crevices of porous materials, so the mold may be difficult or impossible to remove completely.
• Avoid exposing yourself to mold
• Do not paint or caulk moldy surfaces. Clean up the mold and dry the surfaces before painting. Paint applied over moldy surfaces is likely to peel.
• If you are unsure about how to clean an item, or if the item is expensive or of sentimental value, consult with a specialist from 24 Restore. 24 Restore specializes in furniture repair, restoration, art restoration and conservation, carpet and rug cleaning, water damage, and fire or mold restoration.

Bathroom Tip

Places that are often or always damp can be hard to maintain completely free of mold. If there’s some mold in the shower or elsewhere in the bathroom that seems to reappear, increasing ventilation (running a fan or opening a window) and cleaning more frequently will usually prevent mold from recurring, or at least keep the mold to a minimum

What to Wear When Cleaning Moldy Areas

It is important to take precautions to LIMIT YOUR EXPOSURE to mold and mold spores.

• Avoid breathing in mold or mold spores. In order to limit your exposure to airborne mold, you may want to wear an N-95 respirator, available at many hardware stores and from companies that advertise on the Internet. (They cost about $12 to $25.) Some N-95 respirators resemble a paper dust mask with a nozzle on the front, others are made primarily of plastic or rubber and have removable cartridges that trap most of the mold spores from entering. In order to be effective, the respirator or mask must fit properly, so carefully follow the instructions supplied with the respirator. Please note that the Occupational Safety and Health Administration (OSHA) requires that respirators fit properly when used in an occupational setting.
• Wear gloves. Long gloves that extend to the middle of the forearm are recommended. When working with water and a mild detergent, ordinary household rubber gloves may be used. If you are using a disinfectant, a biocide such as chlorine bleach, or a strong cleaning solution, you should select gloves made from natural rubber, neoprene, nitrile, polyurethane, or PCV. Avoid touching mold or moldy items with your bare hands.
• Wear goggles. Goggles that do not have ventilation holes are recommended. Avoid getting mold or mold spores in your eyes.

How Do I Know When the Remediation or Cleanup is Finished?

You must have completely fixed the water or moisture problem before the cleanup or remediation can be considered finished.

• You should have completed mold removal. Visible mold and moldy odors should not be present. Please note that mold may cause staining and cosmetic damage if cleaned up on your own.
• You should have revisited the site(s) shortly after cleanup and it should show no signs of water damage or mold growth.
• People should have been able to occupy or re-occupy the area without health complaints or physical symptoms.
• Ultimately, this is a judgment call; there is no easy answer. If you have concerns or questions consult 24 Restore.
• Moisture and Mold Prevention and Control Tips

Moisture Control is the Key to Mold Control

• When water leaks or spills occur indoors – ACT QUICKLY. If wet or damp materials or areas are dried 24-48 hours after a leak or spill happens, in most cases mold will not grow.
• Clean and repair roof gutters regularly.
• Make sure the ground slopes away from the building foundation, so that water does not enter or collect around the foundation.
• Keep air conditioning drip pans clean and the drain lines unobstructed and flowing properly.
• Keep indoor humidity low. If possible, keep indoor humidity below 60 percent (ideally between 30 and 50 percent) relative humidity. Relative humidity can be measured with a moisture or humidity meter, a small, inexpensive ($10-$50) instrument available at many hardware stores.
• If you see condensation or moisture collecting on windows, walls or pipes ACT QUICKLY to dry the wet surface and reduce the moisture/water source. Condensation can be a sign of high humidity.

Actions that will help to reduce humidity

• Vent appliances that produce moisture, such as clothes dryers, stoves, and kerosene heaters to the outside where possible. (Combustion appliances such as stoves and kerosene heaters produce water vapor and will increase the humidity unless vented to the outside.)
• Use air conditioners and/or de-humidifiers when needed.
• Run the bathroom fan or open the window when showering. Use exhaust fans or open windows whenever cooking, running the dishwasher or dishwashing, etc.

Actions that will help prevent condensation

• Reduce the humidity.
• Increase ventilation or air movement by opening doors and/or windows, when practical. Use fans as needed.
• Cover cold surfaces, such as cold water pipes, with insulation.
• Increase air temperature.

Testing or Sampling for Mold

Rust is an indicator that condensation occurs on this drainpipe. The pipe should be insulated to prevent condensation.

Is sampling for mold needed? In most cases, if visible mold growth is present, sampling is not always necessary. Since there is no or federal limits set for mold or mold spores, sampling cannot be used to check a building’s compliance with federal mold standards. Surface sampling is useful to determine if an area has been adequately cleaned or remediated. Sampling for mold should be conducted by a professional who have specific experience in designing mold sampling protocols, sampling methods, and interpreting results.

Hidden Mold

Suspicion of hidden mold

Water stain on a basement wall — locate and fix the source of the water promptly.

You may suspect hidden mold if a building smells moldy, but you cannot see the source, or if you know there has been water damage and residents are reporting health problems. Mold may be hidden in places such as the back side of dry wall, wallpaper, or paneling, the top side of ceiling tiles, the underside of carpets and pads, etc. Other possible locations of hidden mold include areas inside walls around pipes (with leaking or condensing pipes), the surface of walls behind furniture (where condensation forms), inside ductwork, and in roof materials above ceiling tiles (due to roof leaks or insufficient insulation).

Investigating hidden mold problems

Investigating hidden mold problems may be difficult and will require caution when the investigation involves disturbing potential sites of mold growth. For example, removal of wallpaper can lead to a massive release of spores if there is mold growing on the underside of the paper. If you believe that you may have a hidden mold problem, consider hiring an experienced professional at 24 Restore.

Cleanup and Biocides

Biocides are substances that can destroy living organisms. The use of a chemical or biocide that kills organisms such as mold (chlorine bleach, for example) is not recommended as a routine practice during mold cleanup. There may be instances, however, when professional judgment may indicate its use (for example, when immune-compromised individuals are present). In most cases, it is not possible or desirable to sterilize an area; a background level of mold spores will remain – these spores will not grow if the moisture problem has been resolved. If you choose to use disinfectants or biocides, always ventilate the area and exhaust the air to the outdoors. Never mix chlorine bleach solution with other cleaning solutions or detergents that contain ammonia because toxic fumes could be produced.

Please note: Dead mold may still cause allergic reactions in some people, so it is not enough to simply kill the mold, it must also be removed.

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