Mold & Mildew Preventative Treatment
Following Natural Disasters

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Virtually all structures affected by natural disasters experience water intrusion from rain or flooding and are subject to extensive mold growth beginning within 24 to 48 hours of the event.

On October 13, 2003 following hurricane Isabel, FEMA issued press release No. 1493-24 entitled, “Hurricane Isabel Carried a Hazardous Potential for Mold”.

The following statements have been extracted from an June 28, 2005 updated version of the press release:

“Molds are simple microscopic organisms found virtually everywhere. Molds can be found on plants, foods, dry leaves, and other organic material. Mold spores are very tiny and lightweight, allowing them to travel through the air. Mold growths can often be seen in the form of discoloration, ranging from white to orange and from green to brown and black. When molds are present in large quantities, they can cause allergic reactions similar to those caused by plant pollen.”

“You should be concerned about mold in your home if the contamination is extensive. Exposure to high spore levels can cause the development of an allergy. Mold can also cause structural damage to your home. Similarly, when wood goes through a period of wetting, then drying, it can eventually warp and cause walls to crack or become structurally weak. Mold could become a problem in your home if there is enough moisture available to allow mold to thrive and multiply. Dampness in basements, walls, carpets, and wood caused by flooding provide an environment for mold to flourish. You can also be exposed to mold through skin contact and eating. For some people, a relatively small number of mold spores can cause health problems. The basic rule is, if you can see or smell mold, take steps to eliminate the excess moisture and to cleanup and remove the mold. It is important to quickly identify and correct any moisture sources before health problems develop. Infants, children, immune-compromised patients, pregnant women, individuals with existing respiratory conditions, (allergies, multiple chemical sensitivity, and asthma) and the elderly appear to be at higher risks for adverse health effects from mold.”

The village of Black Rock, located on the Chowan River in eastern North Carolina, was devastated by a 12 foot storm surge caused by Hurricane Isabel in September 2003. Our product  was supplied to the members of the community and used extensively in the recovery process. The following is an excerpt from a letter written by the owner of a small business located in Black Rock who, along with his neighbors, used our product. “Thank you for the mold preventative professional grade concentrate. Isabel really threw us for a loop. We used your product and now, almost 2 years later we have no problem with mold or mildew. We continue to rebuild from the hurricane, but have not seen any signs of mold.” - John A. Hughes - May 27, 2005.

Our concentrated product, (EPA Reg. No. 73873-2),  is the most effective product available to combat and prevent mold and mildew growth.  is effective when applied to virtually any interior or exterior non-food inanimate surface. The finished product dries as a clear, protective film with long-term residual mold prevention capability, but it also may be tinted to facilitate identification of treated areas. Packaged as a concentrate, Anti-Growth® is diluted on-site to concentrations recommended for specific treatment protocols and yields material costs in the range of two to five cents per square foot of treated surface.

Precautions
When returning to a home or other structure that has been flooded or has suffered water intrusion after natural disasters such as hurricanes, tornadoes and floods, be aware that the structure may be contaminated with mold or sewage, which can cause health risks. In the event of contamination, wear water tight footwear and gloves and wash frequently with an antibiotic soap.

Before Entry - Do not enter an affected structure until approval by a responsible authority. Keep children and pets out of the affected area until cleanup has been completed. Be sure that electricity and gas have been safely turned off.

Upon Entry - Open all doors and windows and return outside and allow structure to vent for at least 30 minutes.

Cleanup and Treatment 1
If the structure has not been flooded, water has not intruded wall cavities, and wallboard shows no swelling and seams are intact, recovery may be accomplished without major removal of materials. In this case:

  • Dry the upholstered furniture, carpet and padding by vacuum water extraction, assisted by dehumidifiers and fans.

  • Clean walls and other surfaces thoroughly with water and detergent and dry completely.

  • After drying is completed, treat carpet and padding, furniture and all non-food surfaces with our Concentrate, diluted 24:1 with clean water. (See specific instructions.)

Cleanup and Treatment 2
Unfortunately, in most cases extensive water intrusion will have occurred. FEMA recommends the following:

  • Remove as much mud as possible. Once you have checked the water system for leaks, hose down the inside of the house and its contents. It is best to use an attachment that sprays soap to wash and rinse the walls, floors, furniture, sockets, electrical boxes, and other major items that got muddy. Use non-ammonia soap or detergent, or a commercial cleaner in hot water and scrub the entire area affected by the mold. A stiff brush or cleaning pad works well on block walls or uneven surfaces. Rinse clean with water. A wet/dry vacuum is handy for this process.

  • Remove heating and cooling registers and ducts, then hose them off to prevent contamination when blowing through the ducts at a later date. Next, scientists recommend washing with a disinfectant that is quaternary, phenolic or pine-oil based. If ducts are in a slab or otherwise inaccessible, have them cleaned professionally.

  • Disinfect and dry the moldy area. It is critical to remove the source of moisture before beginning to clean up, as mold growth will return if the area becomes wet again.

  • Bag and dispose of any material that has moldy residue, such as rags, paper, leaves, or debris. Harder materials such as glass, plastic, or metal can be kept after they are cleaned and disinfected. Wear gloves when handling moldy materials. Moldy materials should be removed as follows:

  • Remove porous materials (examples: ceiling tiles, drywall, carpeting, wood products).

  • Carpeting can be a difficult problem - drying does not remove the dead spores. If there is heavy mold, consider replacing it.

  • Allow the area to dry for two or three days.

  • If flooded, remove all drywall to at least 12 inches above the high water mark.

  • Visually inspect the wall interior and remove any other intrusive molds. (This step may have to be carried out by a licensed contractor.)

  • Use caution, as spores are easily released when moldy material is dried out. When cleaning these damaged materials, consider wearing a mask or a respirator. Respirators can be purchased from hardware and paint stores; select one for particle removal (sometimes referred to as a N95 or TC-21C particulate respirator). Respirators are not as effective removing bleach fumes, so minimize your exposure when using bleach or other disinfectants.

  • After thoroughly cleaning and rinsing, disinfect the area with a solution of 10 percent household bleach (e.g., 1 1/2 cups bleach per gallon of water). Using bleach straight from the bottle will not be more effective. Never mix bleach with ammonia - the fumes are toxic. Avoid excessive amounts of runoff or standing bleach. Make sure the working area is well ventilated.

  • Ask others to leave the areas during the cleaning process.

  • Work over short time spans and rest in a fresh air location.

  • Air your house out well during and after the work.

Mixing
Concentrate is packaged as a concentrate which should be diluted at a ratio of 1 part concentrate to 24 parts water by volume or approximately 5-6 oz. of concentrate to 1 gallon of water unless otherwise noted under specific treatment protocols.

Product may be tinted on site with most Universal Tint Colors suitable for use in water based latex paint. Tinting provides visual definition of the treated surfaces and gives an indication of coverage density. The most common colors used are in the magenta or red oxide range.

Specific Treatment Protocols
Before treating any surface with Anti-Growth®, rinse the surface thoroughly to remove any residual detergent or chlorine and allow to dry. (Anti-Growth® will kill the existing mold and mildew but will not bleach out the black stain.)

Structural wood, including plywood, particle board, OSB, rafters, joists, beams, structural steel and other surfaces that will be covered after reconstruction: Apply at 8 – 10 psi. A Universal Tint may be added to the diluted product to delineate treated areas. For wood surfaces that will not be covered, do not tint the Anti-Growth® so it will dry clear.

Insulation: Treat the paper side at approximately 2 psi, with a gentle fan-type mist. Allow the finished product to coat the paper surface without breaking or soaking through the paper.

Drywall: Treat the backside of drywall or other wall cladding prior to installation to enhance mold and mildew prevention in the wall cavity. Treat the exposed side after installation and before paint or wall coverings are applied Apply a mist coating to drywall at approximately 8-10 psi.

Concrete, masonry and stone: Treat at 15 psi.

Electrical and plumbing chases: Treat all surfaces in chase structures at 8-10 psi.

Crawl Spaces: Crawl spaces may be treated by direct spraying or by fogging.

If working space permits, direct spraying may be used and all structural surfaces treated at 15 psi. To treat by fogging, close all vents except the one or two vents most distant from the access door. Cover the open vents with cheese cloth. Place a blower well into the access opening and introduce a mist into the air stream down stream from the blower fan. Continue the fogging until the cheese cloth is damp with product.

HVAC System: Anti-Growth® can be applied through HVAC systems using the air handler as the blower. Close all vents except those at the far end of each duct run. Place dry cheese cloth over vents at far ends of all duct runs. Turn on air handler and place sprayer mist nozzle in air stream. Switch on blower and apply at a fine mist until all cheese cloth at duct extremities become wet. Allow duct work to dry before running system.

Carpet: Treat sub-floor at 8-10 psi before installation of carpet or padding. After installation, loosen one corner or edge of the carpet and blow product as a mist between the carpet and padding. Carpet may also be treated by using our finished product as the final rinse in a wet vacuum system.

Painted Surfaces and Wall Coverings: Treat finished painted surfaces and wall coverings with a light mist applied at 2 -5 psi.

Safety and Handling

When mixing Concentrate or applying the diluted product, always carefully follow the recommended safety practices and procedures described on the label and in the Material and Safety Data Sheet (MSDS).

  • Avoid splashing or dripping product on yourself and others.

  • Always wear rubber gloves and eye protection.

  • Always use a respirator when applying product in confined spaces or where product may become airborne.

  • When applying product overhead, always use full protection including

  • Tyvek suit, face shield, respirator and gloves.

First Aid Measures

Eyes: Immediately wash eyes with clean water for at least twenty minutes. Call a physician immediately.

Skin: Remove contaminated clothing. Wash affected area with soap and water. Most soaps neutralize our product.

Ingestion: Do not induce vomiting. If swallowed, call a physician or poison control center immediately. Promptly drink a large quantity of egg whites, gelatin solution, or, if if these are not available, large quantities of water. Avoid alcohol. Follow doctor’s instructions.

Inhalation: Move to fresh air. If not breathing, clear airway and start mouth-to mouth artificial respiration or use air bag-mask respirator. Get immediate medical attention and transport to medical facility. If available, give supplemental oxygen.

Storage
Anti-Growth® should be stored in its original container or other suitable clearly marked closed container. Store in a safe place, away from direct sunlight or high heat and protect against freezing. Keep a copy of the MSDS in the storage area. Diluted product has a storage life of one year if properly stored, but should be thoroughly agitated prior to use.

Dwell – Drying Time
Drying times vary due to environmental conditions, interior humidity, moisture challenges, and a host of other factors. If contents have been moved to make application possible, allow all surfaces to completely dry prior to resetting.

Re-Occupation of Treated Area
Do not re-occupy any area while treated surfaces are still damp. Do not reoccupy any areas, or allow children or pets to occupy any area until all moisture associated with treatment is completely dry.