Written by: Howard Breuer of Pasadena Star
Archive for the ‘Mold removal/Mold Remediation’ Category
Written by: Howard Breuer of Pasadena Star
Headlines regarding a mold infested condo development generated conversation, confusion and concern following a September 8, 2010, Seattle Times report.
It will take a reported $4 million to repair the Riverwalk at Redmond condo complex where water damage has riddled some units with toxic mold. Members of the homeowners association appear to have little recourse for what it says is shoddy construction. Water has damaged 15 units, affecting three of the five buildings on Northeast Leary Way.
The Times article described the plight of the Dusi family, whose lives have been turned upside down by the severe mold in their unit. They have completely abandoned rooms, and ripped out and replaced drywall as mold has moved throughout their unit. Their 4-year old developed a spotty rash on her legs and has required frequent hospital visits for respiratory infections and allergies.
Although mold is a very common phenomenon in homes, apartments and commercial buildings, new stories such as the one affecting the owners of The Riverwalk at Redmond often spur interest and demand for more information on mold.
It becomes even more relevant as remodel jobs become a larger part of MBAKS member’s business. Mold is oftentimes found in crawls, attics or behind sheetrock during remodel activities.
I thought some facts regarding how mold may impact the health of your clients and/or future tenants would be helpful…
1. Mold growth in buildings is a symptom of water damage or moisture problems.
Everyone’s immune system handles exposures differently. Thus, mold may affect members of a household differently, with some feeling no effects while others may experience possibly dramatic reactions.
“If you’ve got mold indoors, that needs to be dealt with,” says David Williams, an investigator for Public Health – Seattle, King County.
Bleach and Kilz, both commonly used by consumers for mold, are neither advisable, nor acceptable according to most commercially accepted remediation protocol. Bleach in particular, is only recommended for hard, non-porous surfaces like tile, countertops and tub and shower basins. However, it is ineffective as a biocide to kill mold in joist, framing members, roof decking, OSB and plywood as it is unable to penetrate the porous nature of those materials. As a result, the hyphae, or roots of the mold remain alive and viable – despite the fact that the mold stain may have been bleached away.
So, if you’re dealing with mold, either personally, in a property that you own, on a remodel job, or speculatively through foreclosures, seek the advice of a mold professional to reduce the possibility of adverse health effects to occupants and potential down-line liabilities.
Chris Heller, Sales and Business Development, Mold Solutions NW, email@example.com, www.dontfearmold.com
Mold can leave stains on fabric if left too long. Here are some steps to follow for mold stain removal.
Mold will leave stains but by using these steps and washing materials in this manner, you will have removed the mold and most likely the musty smell as well, however removing mold stains is an entirely different matter. MMR mold stain remover is a great resource to remove mold stains. Before using on fabric, be sure to check an area first for color fastness.
Tell us about your experience with removing mold stains from fabrics. We would love to hear from you.
Concrete is used more than any other man-made material in the world. Everything from architectural structures to foundations, roads, and bridges utilize the strength and durability of concrete. Unfortunately over time, aerobic bacteria and mold can present themselves on the surface of concrete and cause strength loss, dramatically decreasing the integrity of the structure.
Introducing DURABAN; the long-lasting, water-based antimicrobial technology that protects your concrete from bacteria, mold & mildew, while also protecting your family, business, and environment from toxic chemicals and mutagenetic bugs. The inherent properties of concrete provide an excellent environment for pathogens and mold to grow causing odor, staining, quality and durability deterioration, and sickness. After just ONE treatment with DURABAN, your ceramics will be free from health hazardous and aesthetically distasteful mold and mildew growth.
In the following lab study, DURABAN antimicrobial has proven to be effective in protecting concrete from mold and microbial growth:
The hot, humid summer brought a rash of mold problems to Quad City area schools.
At Cambridge Elementary School in Henry County, Ill., the mold growth is so severe that crews are working around the clock to clean up the problem before school begins Aug. 17.
Meanwhile, Davenport and United Township school districts have done mold cleanup in several classrooms.
Workers installing a geothermal system in the Cambridge school discovered the mold problem about two weeks ago. Akers said district officials had discovered the school’s roof had been leaking last fall, but could not find any contractors to repair it over the winter. The roof now has been repaired.
Moisture settled in the space between the drop ceiling and the roof, and during the sweltering temperatures, mold formed. Akers said the district had the mold tested and it came back as stachybotrys mold, also known as black mold, a particularly toxic form of the substance.
The district awarded a contract to Envirotech of St. Louis as quickly as possible to get rid of the mold. Work began Tuesday and will continue 24 hours a day until the problem is fixed.
If the mold is not eradicated by the time classes are due to start, classes may be moved to churches or community buildings.
The work is expected to cost $185,250, which does not include the cost of installing a ventilation system in the ceiling to prevent the problem from happening again. It also does not include the cost of new ceiling tiles. However, the district has pollution liability insurance with a $50,000 deductible. The deductible will be paid for out of a special fund the district created for health, life and safety risks.
Meanwhile, mold also has been discovered at Buchanan Elementary School in Davenport. The Davenport School District got the go-ahead Wednesday to proceed with classes there, which begin today. After cleanup, an air quality test showed there were no unusual levels of mold at the school.
The mold was found about two weeks ago and was confined to six classrooms. A team of custodians spent four, 13-hour days cleaning.
District spokeswoman Laura Lortz said the mold was found in a portion of the building that was not air conditioned over the summer. The blinds were pulled and the doors were closed, creating an environment ideal for mold growth.
The mold had grown on door knobs, under tables, on top of some books and on cork and felt boards.
These are common problems for any building that does not get normal use (such as schools over the summer months). If your school has mold concerns, ask your school officials to address the concerns quickly as these schools did. If you believe professional mold removal and mold clean up is required, please contact EcoGuard Mold Solutions www.MoldIndiana.com
Drywall, a common building material also know as gypsum board, wallboard, and plasterboard, is a great source for mold.
Introducing DURABAN; the long-lasting, water-based antimicrobial technology that protects your drywall from bacteria, mold & mildew, while also protecting your family, business, and environment from toxic chemicals and mutagenetic bugs. When exposed to warmth and moisture, drywall provides an excellent environment for pathogens and mold to grow causing odor, staining, quality and durability deterioration, and sickness. After just ONE treatment with DURABAN, your drywall will be free from health hazardous and aesthetically distasteful mold and mildew growth.
In the following lab study, DURABAN antimicrobial has proven to be effective in protecting paper-covered drywall from mold and mildew growth:
The technical attributes of Duraban™ may be explained as follows:
The development of 3-(trimethoxysilyl) propyldimethyloctadecyl ammonium chloride (Si-QAC) represented a monumental advance in the method of delivery of an antimicrobial. Using an alkoxysilane-coupling agent reacted to a quaternized amine researchers were able to covalently link this novel antimicrobial monomer directly to a wide ranges of surfaces. The monomers then react with each other to form a cross-linked polymer of extremely high molecular weight and durability, thereby producing an essentially permanent antimicrobial surface that blankets the substrate to which it is applied. Through a series of radioisotope labeling and microbial assays researchers demonstrated that the antimicrobial activity did not result from release of the material and that it is a surface-associated phenomena.
The immobilization of an antimicrobial agent provides significant advantages over conventional antimicrobials. Since the activity is not dependent upon release and diffusion of the antimicrobial molecule, the activity remains constant over time. Moreover, the active molecule is localized in highly concentrated form on the treated surface. Since this is where proliferation of microbes occurs, the antimicrobial is effectively delivered specifically to the environment of importance. This not only extends the potency of the agent, but also minimizes the risk of the development of resistance (mutagenicity). Indeed, scientists were able to demonstrate that resistance and adaptation does not occur. Moreover, the permanent attachment of the antimicrobial molecule to the surface avoids the potential exposure risks associated with conventional antimicrobials.
Si-QAC works through a two-step process. The positively charged action on the SiQAC molecule attracts the negatively charged cell wall of the microorganism. Initially, the hydrophobic alkyl chain penetrates the similarly hydrophobic cell wall of an organism that it comes in contact with. As the alkyl chain penetrates the delicate cell wall, the wall is weakened and punctured. Second, as the cationic quaternary ammonium group comes in contact with the cell wall it disrupts the ion flow and causes leakage into or out of the cell wall, usually resulting in the cell losing its contents or actually bursting. The charged quaternary ammonium alkyl group remains unchanged and is available to repeat the process indefinitely. Because of this “physical” and “electrical” killing mechanism, microbes do not get an opportunity to develop resistance or immunity to the Si-QAC. The Duraban Si-QAC therefore avoids the issues that have lead to the development of resistant species such as MRSA and VRE that are currently some of the leading threats to public health globally.
Si-QAC is considerably more potent than a non-silylated quaternary ammonium compound because the silyl group bonds to surfaces (and itself) and causes the antimicrobial portion to become locally concentrated. Thus, it is not a single molecule responsible for cell death, but an enormous amount of molecules all working in unison.
An additional benefit of this almost mono-molecular thin polymeric layer is that the Si-QAC does not affect physical properties such as color, look, feel and texture allowing its use in applications that often limit other anti-microbials.