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Building Manager's Guide to Mold in Rental Homes, Apartments, Offices
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InspectAPedia tolerates no conflicts of interest. We have no relationship with advertisers, products, or services discussed at this website.
This document discusses explains why building managers or landlords are sometimes reluctant to face a mold problem and offers advice to both building owners and tenants about these worries. We discuss what to expect the rental property managers to do if they
are going to address a mold problem properly, and what the rental apartment tenant needs to watch out for during
a mold investigation and mold remediation of their home.
An easy-to-print PDF version of this article is here.
Green links show where you are. © Copyright 2013 InspectAPedia.com, All Rights Reserved. Author Daniel Friedman.
Building management reluctance to address mold problems in Rental Properties
Mold cleanup cost concerns: Sometimes a building management is reluctant to face the expense and trouble of handling leaks and mold contamination
correctly.
Correct response to mold in a rental property might require a (costly) thorough building survey, evaluation, diagnosis of problem
areas and their causes and specification of
the steps to remedy them, followed by performing of the work followed by clearance inspection and testing by someone not
at all connected with the contractors performing the remediation. It would be rare for a building manager to have
such an expert on full-time staff, so hiring an outside expert would be necessary.
Mold fear concenrs: Reluctance of building managers to address mold also comes from the wish to avoid alarming other tenants. In our experience this is always a mistaken notion, as tenants talk to one another anyway, and building-related illness
frightens people - fear spreading faster than mold growth.
Accurate information and the assurance that tenant concerns
are being handled competently is more effective than other less direct responses by building management.
True cost of improper mold remediation: Half-baked or amateur workmanship risks increasing the ultimate cost to the building management:
- Improper mold cleanup can increase indoor mold levels, making building
occupants sick and/or by contaminating their belongings leading to the need for additional cleaning of contents and personal items.
- Improper mold remediation can lead to unnecessarily high costs of repeated attempts to clean up or remove problem mold or even repeated visits by building inspectors and "mold testers" until someone finally correctlyi diagnoses the causes of problem mold and finds the actual mold reservoirs, including moldy materials that may not have been obvious based on just a superficial inspection, an air test, swab, or culture mold sample.
- Risks of mold-related illness may spread to other building occupants or to future tenants in the same rental space if the cleanup is not properly performed.
- Improper mold causation diagnosis risks having to repeat the mold cleanup because the basic causes of mold growth have not been identified and corrected
In sum, it's least costly in end if mold remediation is performed properly in the first place.
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Technical Reviewers & References
Related Topics, found near the top of this page suggest articles closely related to this one.
Books & Articles on Building & Environmental Inspection, Testing, Diagnosis, & Repair
 The Home Reference Book - the Encyclopedia of Homes, Carson Dunlop & Associates, Toronto, Ontario, 25th Ed., 2012, is a bound volume of more than 450 illustrated pages that assist home inspectors and home owners in the inspection and detection of problems on buildings. The text is intended as a reference guide to help building owners operate and maintain their home effectively. Field inspection worksheets are included at the back of the volume. Special Offer: For a 10% discount on any number of copies of the Home Reference Book purchased as a single order. Enter INSPECTAHRB in the order payment page "Promo/Redemption" space. InspectAPedia.com editor Daniel Friedman is a contributing author.
Or choose the The Home Reference eBook for PCs, Macs, Kindle, iPad, iPhone, or Android Smart Phones. Special Offer: For a 5% discount on any number of copies of the Home Reference eBook purchased as a single order. Enter INSPECTAEHRB in the order payment page "Promo/Redemption" space.
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- Environmental Health & Investigation Bibliography - our technical library on indoor air quality inspection, testing, laboratory procedures, forensic microscopy, etc.
- Adkins and Adkins Dictionary of Roman Religion discusses Robigus, the Roman god of crop protection and the legendary progenitor of wheat rust fungus.
- Kansas State University, department of plant pathology, extension plant pathology web page on wheat rust fungus: see http://www.oznet.ksu.edu/path-ext/factSheets/Wheat/Wheat%20Leaf%20Rust.asp
- "A Brief Guide to Mold, Moisture, and Your Home",
U.S. Environmental Protection Agency US EPA - includes basic advice for building owners, occupants, and mold cleanup operations. See http://www.epa.gov/mold/moldguide.htm
- US EPA - Mold Remediation in Schools and Commercial Building [Copy on file at /sickhouse/EPA_Mold_Remediation_in_Schools.pdf ] - US EPA
- US EPA - Una Breva Guia a Moho - Hongo [Copy on file as /sickhouse/EPA_Moho_Guia_sp.pdf - en Espanol
Allergies, Allergens, Allergy Testing in Buildings - References & Products
- Air Conditioning System Blower Fans & Filters Cascading for Optimum Indoor Air Quality
- Allergen Tests in Buildings advice about how to test, what to look for, in evaluating the level of dog, cat, or other animal allergens in a building
- "IgG Food Allergy Testing by ELISA/EIA, What do they really tell us?" Sheryl B. Miller, MT (ASCP), PhD, Clinical Laboratory Director, Bastyr University Natural Health Clinic - ELISA testing accuracy: Here is an example of Miller's critique of ELISA
http://www.betterhealthusa.com/public/282.cfm - Townsend Letter for Doctors and Patients
The critique included in that article raises compelling questions about IgG testing assays, which prompts our interest in actually screening for the presence of high levels of particles that could carry allergens - dog dander or cat dander in the case at hand.
http://www.tldp.com/issue/174/IgG%20Food%20Allergy.html contains similar criticism in another venue but interestingly by the same author, Sheryl Miller. Sheryl Miller, MT (ASCP), PhD, is an Immunologist and Associate Professor of Basic and Medical Sciences at Bastyr University in Bothell, Washington. She is also the Laboratory Director of the Bastyr Natural Health Clinic Laboratory.
- Allergens: Testing for the level of exposure to animal allergens is discussed at http://www.animalhealthchannel.com/animalallergy/diagnosis.shtml (lab animal exposure study is interesting because it involves a higher exposure level in some cases
- Allergens: WebMD discusses allergy tests for humans at webmd.com/allergies/allergy-tests
- Animal Allergens: Dog, Cat, and Other Animal Dander - Cleanup & Prevention Information for Asthmatics and regarding Indoor Air Quality.
- Atlas of Mold Related Illness Symptoms & Complaints - long list of both documented, studied mold related illness, and complaints ascribed to mold contamination or allergens in buildings
- Cat Dander: how to inspect and test a building for past or current presence of cats, cat hair, cat dander, and cat allergens
- Clinical Atlas of Mold Toxicity - An Online Description of Toxic, Pathogenic, Allergenic Fungi, Fungal Diseases
- Fiberglass Insulation Contains Mold© 2005 comments about a field study in process, & more about health hazards from fiberglass insulation
- Humidity: What indoor humidity should we maintain in order to avoid a mold problem?
- Mold Action Guide detailed guide on finding, removing, and preventing indoor mold contamination
- Odors, Odor Detection, Smells, & Gases how to find and identify sources of noxious or toxic odors and gases
- Other environmental risks, Our much longer list: Asbestos, carbon monoxide, electromagnetic fields, etc.
- Ozone: The Use of Ozone Indoors for Control of Odors and Mold
Removal in Buildings: A Summary of Hazards and False Claims.
- Pollen Allergens: identification, plant pollen and indoor air quality
- Products to Reduce Mold & Allergy Problems to reduce indoor mold or allergen levels: air cleaners, air purifiers, dust mite covers, vacuum cleaners, crawl space vents
- Recognizing Allergens: What various indoor allergens look like - identification photos to help identify pollen, dust mites, animal dander, toxic or allergenic mold - Common Mold and other Allergens, Irritants, Remedies & Advice
- Rodent control issues, including dander, fecal, and urine contamination of Buildings and Building insulation are discussed at our
- Sewage and Septic backup contamination in Buildings: inspection, testing, remediation, & references to expert sources
- Action Guide: What to do about mold, mildew, and other indoor allergens
- ...
Mold Contamination Testing, Cleanup, Prevention: references & products
 The Mold Information Center: What to Do About Mold in Buildings, When and How
to Inspect for Mold, Clean Up Mold, or Avoid Mold Problems- Aerobiology, Building Science, Microscopy, & Laboratory References, an extensive technical bibliography
- Allergens: what they look like in buildings
- Associations: Sick House, Sick Building, SBS - Air Quality, Government, Private Associations and Information Resources
- Atlas of Clinical Fungi, 2nd Ed., GS deHoog, J Guarro, J Gene, & MJ Figueras, Centraalbureau voor Schimmelcultures, Universitat Rovira I Virgili, 2000, ISBN 90-70351-43-9 (you can buy this book at Amazon) - The Atlas of Clinical Fungi is also available on CD ROM
- Atlas of Mold Related Illness: Index of Symptoms and health, physical, neurological, psychological, and other complaint which people suspect may be mold or building-related.
- Atlas of Indoor Mold, Online Clinical Mold Atlas, Toxins, Pathogens, Allergens and Other Indoor Particles - Medical Health Effects of Mold (separate online document)
- Black Mold that is Harmless Photos of recognizable, usually harmless black mold on wood, bluestain, ceratocystis, ophistoma
- Building Floods: quick steps after a building flood or plumbing leak can prevent costly mold contamination
- Classes of Mold: what types of cosmetic, allergenic, or toxic mold are a problem? Can mold be cleaned-up successfully?
- Clinical Mold References - Detailed bibliography of mold reference texts
- "A Brief Guide to Mold, Moisture, and Your Home", U.S. Environmental Protection Agency US EPA - includes basic advice for building owners, occupants, and mold cleanup operations. See http://www.epa.gov/mold/moldguide.htm
- "Disease Prevention Program for Certain Vegetable Crops," David B. Langston, Jr., Extension Plant Pathologist - Vegetables, University of Georgia (PDF document) original source: www.reeis.usda.gov/web/crisprojectpages/209797.html
- "Disease Prevention in Home Vegetable Gardens,"
Patricia Donald,
Department of Plant Microbiology and Pathology,
Lewis Jett
Department of Horticulture, University of Missouri Extension - extension.missouri.edu/publications/DisplayPub.aspx?P=G6202
- "Management of Powdery Mildew, Leveillula taurica, in Greenhouse Peppers," Ministry of Agriculture and Lands, British Columbia - Original source: www.agf.gov.bc.ca/cropprot/peppermildew.htm
- Environmental Health & Investigation Bibliography - our own technical library on indoor air quality inspection, testing, laboratory procedures, forensic microscopy, etc.
- Fiberglass: Mold in Fiberglass Insulation© 2005 comments about a field study in process, & more about health hazards from fiberglass insulation - DJF
- Fifth Kingdom, Bryce Kendrick, ISBN13: 9781585100224, is available from the InspectAPedia online bookstore - we recommend the CD-ROM version of this book. This 3rd/edition is a compact but comprehensive encyclopedia of all things mycological. Every aspect of the fungi, from aflatoxin to zppspores, with an accessible blend of verve and wit. The 24 chapters are filled with up-to-date information of classification, yeast, lichens, spore dispersal, allergies, ecology, genetics, plant pathology, predatory fungi, biological control, mutualistic symbioses with animals and plants, fungi as food, food spoilage and mycotoxins.
- Fungi, Identifying Filamentous, A Clinical Laboratory Handbook, Guy St-Germain, Richard Summerbell, Star Publishing, 1996, ISBN 0-89863-177-7 (English) (buy at Amazon)
- Looking for Mold Procedure: what mold is often found where in buildings - simple technical presentation
- Meruliporia: the house eating fungus or "poria"
- Mold Action Guide: Step-by-Step Instructions, What to do about mold, mildew, and other indoor allergens
- MOLD APPEARANCE - WHAT MOLD LOOKS LIKE Photos of what mold looks like in buildings
- MOLD APPEARANCE - STUFF THAT IS NOT MOLD Photos of NOT-mold material that is sometimes mistaken for mold
- MOLD ATLAS & PARTICLES INDEX, Pathogens, Allergens and Other Indoor Particles - Medical Health Effects of Mold (separate online document)
- MOLD BY MICROSCOPE Mold under the microscope - photo identification of the most common indoor molds found in buildings
- Mold FAQs Answers to Most Questions about Indoor Mold, Mold Related Illness, Mold Cleanup, Mold Prevention
- US EPA: Mold Remediation in Schools and Commercial Building [Copy on file at /sickhouse/EPA_Mold_Remediation_in_Schools.pdf ] - US EPA
- Mold spores in the Home - a Photo ID Library for detection and identification of mold allergens
- Mold Test Kits - How to Collect and Send Your Own Mold Sample to our mold testing lab or to any mold lab you wish
- Most Common Indoor Molds Found in Buildings, A Table of
- Mycology, Fundamentals of Diagnostic, Fran Fisher, Norma B. Cook, W.B. Saunders Co. 1998, ISBN 0-7216-5006-6 (buy this book at Amazon)
- Ozone Warnings - Use of Ozone as a "mold" remedy is ineffective and may be dangerous.
- Rot concerns in buildings-some building mold such as Meruliporia incrassata "Poria" risks serious rot and hidden structural damage
- US EPA: Una Breva Guia a Moho - Hongo [Copy on file as /sickhouse/EPA_Moho_Guia_sp.pdf - en Espanol
OTHER IAQ ISSUES: How To Find and Address Other Indoor Air or Indoor Environment Contaminants Besides Mold
Mold or allergens may not be the only or even the main indoor environmental contaminant. Don't let media attention to mold
cause so much enviro-scare fear that other, possibly more urgent hazards go un-addressed.
- Fiberglass building insulation and HVAC duct work insulation hazards
- Sewage and Septic backup contamination in buildings: inspection, testing, remediation, & references to expert sources
- Other environmental risks: Asbestos, carbon monoxide,
electromagnetic fields, environmental illness, fiberglass, MCS - multiple chemical sensitivity, toxic gases, etc
- Indoor Gas Sampling Plan
for Residential Buildings lists a number of toxic indoor gases which we test for, depending on the building
complaint and building conditions
- Ozone Warnings - Use of Ozone as a "mold"
remedy is ineffective and may be dangerous.
- Pet control - if you can't say goodbye to your bird, cat, dog, guinea pig, hamster, tropical fish, then limit the
areas they occupy and limit the airflow from that area to sleeping or other areas of the building, use allergenic
bedding, eliminate wall-to-wall carpeting, improve housecleaning including use of a HEPA-rated vacuum cleaner. For more details
see our article Dog, Cat, and Other Animal Dander - Information for Asthmatics and Indoor Air Quality
- Rodents, Mice, Squirrel Control - I find high levels of mouse and rodent dander, fecal dust, and urine-contaminated dust in some buildings,
and high levels of these materials in building insulation in those locations. If you have a mouse problem, particularly if mice and their waste (fecals or urine) are contaminating
the building HVAC or building insulation, may need both steps to clean up or remove infected materials and steps to stop an ongoing
rodent problem. If squirrels are a problem, the cleanup needs to include closing off entry openings into the building. Get some
help from a licensed pest control expert.
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