Mold in Attics: Media Blasting & Mold Encapsulants
ATTIC MOLD ENCAPSULANTS - CONTENTS: How to clean up a moldy attic. When to use or not use media blasting and when to use encapsulants for attic mold
POST a QUESTION or READ FAQs about choices of cleaning methods for mold-contaminated attics and about the use of sprays, disinfectants, biocides, and mold encapsulants in building attics after a mold cleanup project
ATTIC MOLD When to Media Blast and Use Encapsulants in Attics
Is there ever a time when the fungicide, blasting, encapsulation method should not be used?
Toxic attic mold: The photo at the left was identified as a toxic mold that probably should be removed, although the ease of movement
of mold spores from an attic down into a living area varies widely from building to building.
Uncertain attic mold: The photo at the very top of this page shows where you may find mold growing on the attic side of ceiling drywall, particularly below
roof leaks or in areas of ice dam leaks at a building eaves.
In addition to testing to see what this material is (presuming there is a
large area of it), we'd also evaluate the chances of particle movement between the attic and the living space before
deciding on an appropriate approach to this moldy attic.
Using media blasting and encapsulants to remove mold in an attic
are mold remediation methods which are probably inappropriate for small areas, say less than 30 sq.ft. of contiguous mold, and would otherwise certainly not be used
without very good particle and dust containment measures.
If we had a moldy attic area where containment were impossible or impractical, other measures may be needed such as careful piece-meal
demolition using negative air conditions in the attic and without passing moldy demolition materials unprotected through other building
areas (double bagging, exit through a containment door, or disposal through an opening in a roof or attic gable end wall for example).
If a large area of toxic or allergenic attic mold is found on attic surfaces such as roof sheathing and or rafters, or on the
surfaces of the attic floor or floor joists, media blasting may be a rapid and economical cleaning method to remove
problem mold provided:
Proper particle and dust containment can be set up to protect the rest of the building from cross contamination during the media
blasting cleaning process
Insulation that has been exposed to mold or which would be exposed to dust from media blasting has been removed. Be sure to review INSULATION MOLD TEST.
This article is part of our series: MOLD in BUILDINGS which describes how to find mold and test for mold in buildings including building attics or other building roof cavities.
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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.
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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
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
"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 in Home Vegetable Gardens,"
Department of Plant Microbiology and Pathology,
Department of Horticulture, University of Missouri Extension - extension.missouri.edu/publications/DisplayPub.aspx?P=G6202
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.
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.
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.