Question? Just ask us!
Free Encyclopedia of Building & Environmental Inspection, Testing, Diagnosis, Repair
ENVIRONMENTAL HAZARDS - INSPECT, TEST, REMEDY
MOLD: A COMPLETE GUIDE to TEST CLEAN PREVENT
ACCURACY vs PRECISION of MEASUREMENTS
ACTIVITY of MOLD in buildings
AGE of MOLD - Old is the Mold?
AIR POLLUTANTS, COMMON INDOOR
AIR TEST SAMPLING CASSETTE STUDY
AIRBORNE MOLD COUNT NUMBER GUIDE
AIRBORNE PARTICLE ANALYSIS METHODS
ALLERGEN TESTS for BUILDINGS
ALLERGENS in BUILDINGS, RECOGNIZING
ALLERGY & MOLD IAQ PRODUCTS
ALLERGY TESTS for PEOPLE
ALLERGY TEST ACCURACY
BASEMENT MOLD WATER IMPACT
BIBLIOGAPHY for ENVIRONMENTAL HEALTH, MOLD, IAQ
BIOLOGICAL POLLUTANTS in the HOME - EPA
BLACK MOLD, HARMLESS COSMETIC
BLACK MOLD, TOXIC & ALLERGENIC
BLEACHING MOLD, Advice about
BOOK MOLD, Moldy Book Cleaning
BOOKSTORE - ENVIRONMENTAL
CAR MOLD CONTAMINATION
CARPET DUST IDENTIFICATION
CARPETING & INDOOR AIR QUALITY
CARPETS & PADDING ODORS IN buildings
CHINESE DRYWALL HAZARDS
CLEARANCE INSPECTIONS - MOLD CLEANUP
DIRECTORY of MOLD / ENVIRONMENTAL EXPERTS
DIRT FLOOR MOLD CONTAMINATION
DISINFECTANTS & SANITIZERS, SOURCES
DISINFECTING BUILDINGS with BLEACH
DO-IT-YOURSELF MOLD CLEANUP WARNINGS
DRYWALL MOLD TESTING
DUCT SYSTEM & DUCT DEFECTS
DUST, HVAC CONTAMINATION STUDY
EFFLORESCENCE, Salts & White / Brown Deposits
EMERGENCY RESPONSE, IAQ, GAS, MOLD
FEAR of MOLD - MYCOPHOBIA
Fiberboard Insulation Sheathing Mold
FIBERGLASS INSULATION MOLD
FIND MOLD, ESSENTIAL STEPS
MOLD in BUILDINGS
FLOOD DAMAGE ASSESSMENT, SAFETY & CLEANUP
FLOODS IN buildings-mold
FLOOR & SUBFLOOR MOLD, HIDDEN
HIDDEN MOLD, HOW TO FIND
HUMIDITY CONTROL & TARGETS INDOORS
INDOOR AIR HAZARDS TABLE
Indoor Air Pollution Book Online CPSC
INDOOR AIR QUALITY & HOUSE TIGHTNESS
INDOOR AIR QUALITY IMPROVEMENT GUIDE
INDOOR AIR QUALITY METHODS COMPARED
LAB PROCEDURES MICROSCOPE TECHNIQUES
Legionella BACTERIA & HVAC Equipment
MEDIA BLASTING for MOLD REMOVAL
MILDEW in BUILDINGS ?
MILDEW ERRORS, IT's MOLD
MILDEW REMOVAL & PREVENTION
MOISTURE CONTROL in BUILDINGS
MOLD: A COMPLETE GUIDE TO MOLD
MOLD CLEANUP GUIDE- HOW TO GET RID OF MOLD
MOLD COUNT NUMBER GUIDE
MOLD CULTURE TEST KIT VALIDITY
MOLD DETECTION & INSPECTION GUIDE
MOLD or INDOOR AIR EMERGENCY RESPONSE
MOLD LEVEL IN AIR, VALIDITY
MOLD ODORS, MUSTY SMELLS
MOLD PREVENTION GUIDE
MOLD RELATED ILLNESS GUIDE
MOLD SAFETY WARNINGS
MOLD TEST KITS
MOLD TESTING METHOD VALIDITY
MSDS Material Safety Data Sheets
MYCOPHOBIA, STAINS MISTAKEN for MOLD
ODORS GASES SMELLS, DIAGNOSIS & CURE
OZONE for MOLD OR ODORS
PAINTS & COATINGS ODORS IN BUILDINGS
PARTICLE SIZES & IAQ
Particulates & Allergens Indoors
RADON HAZARD TESTS & MITIGATION
RENTERS & TENANTS GUIDE TO INDOOR HAZARDS
SMELL PATCH TEST to Track Down Odors
SEWAGE BACKUP TEST & CLEANUP
STAINS on & in BUILDINGS, CAUSES & CURES
STAIN DIAGNOSIS on BUILDING EXTERIORS
STAIN DIAGNOSIS on BUILDING INTERIORS
STAINS & Thermal Tracking
THERMAL IMAGING MOLD SCANS
THERMAL TRACKING & THERMAL BRIDGING
TRAPPED MOLD BETWEEN WOOD SURFACES
TRAPPED MOLD BETWEEN WOOD SURFACES
UV LIGHT BLACK LIGHT USES
VOCs VOLATILE ORGANIC COMPOUNDS
This article discusses the best use of fungicidal sealants, biocides, fungicides, sanitizers, and mold paints or sealants to seal remaining free dust and to retard future mold growth. We discuss the pros and cons of using fungicidal sealants and bleach on wood surfaces and give sources and list types of those products. We also discuss common errors made when cleaning wood surfaces, such as relying on bleach or performing expensive and unnecessary cleaning on cosmetic black mold on wood surfaces.
Green links show where you are. © Copyright 2014 InspectApedia.com, All Rights Reserved.
3. TREAT & SEAL - cleaned building surfaces such as lumber or plywood - an optional step to reduce retard future mold growth
This article series explains how to clean off or remove toxic or allergenic or even just cosmetic mold found on surfaces of un-finished wooden building materials such as framing lumber (rafters, floor joists, wall studs), and building roof, wall, and floor sheathing such as plywood, tongue-and groove pine boards, and other structural wood surfaces in buildings.
Our page top photo shows fungicidal paint sprayed on demolition debris in a building. The debris should have been removed before this sealant was applied.
At left the worker is spraying a sanitizer or biocide onto interior carpeting in a building.
Optionally, you may elect to treat cleaned lumber by coating its surfaces with a sealant intended for that purpose and following the recommendations of the manufacturer.
Applying Fungicidal Sealants after Mold Remediation
The mold remediator/cleaner may elect to apply a fungicidal sealant such as Fosters™ 4020 or 4051, the Anabec™ two-step cleaner-sealer system, or non-sealant fungicides may be applied in an effort to reduce the chances of future mold growth on the cleaned surfaces.
But readers should review the advantages and warnings
about using fungicides and fungicidal sealants described next.
The photo shows how a clear fungicidal encapsulant (mold sealant) can encompass and immobilize small particles, in this case fragments of fiberglass insulation and sub-micron microscopic debris which were coagulated and encapsulated into now-solidified droplets of a clear commercial mold encapsulant/sealant.
This photograph, taken during a mold remediation clearance inspection, shows the use of a clear fungicidal sealant applied to previously-cleaned building framing and subflooring. The shiny coating makes evident where the coating has been applied.
The transparent nature of the coating permits the inspector, building owner, or a subsequent buyer of the property to view the quality of the cleaning job. Clear encapsulants have this advantage of showing the condition of the coated surface, assuring us that the mold remediator didn't simply "spray-over" a dirty moldy surface.
On the other hand, white or pigmented fungicidal paints and sprays are easier to detect, and it's easier to see if the application missed any surfaces that were supposed to be coated.
Our photo (left) shows a moldy crawl space after expert cleaning, application of a clear fungicidal sealant on wood surfaces, and installation of a secure plastic barrier over a dirt and gravel crawl space floor.
Here are some advantages of using a fungicidal sealant following mold remediation
Our photo (left) shows a white fungicidal sealant paint spray coating that has been applied to all surfaces in a building basement fas the last step in a mold cleanup project. The remediator did a great job of removing moldy materials, cleaning all surfaces, and leaving no demolition dust or debris in the building - all before this mold spray paint was applied.
Readers should also see MOLD KILLING GUIDE, see BLEACHING MOLD, Advice about and step by step mold cleanup advice at MOLD CLEANUP GUIDE- HOW TO GET RID OF MOLD and also MOLD CLEANUP - MISTAKES to AVOID.
Mold Remediation Products, Fungicidal Sprays, Sealants, Biocides, Washes
For more about mold sprays, see MOLD SPRAYS, SEALANTS, PAINTS. Readers should also see MOLD KILLING GUIDE, see BLEACHING MOLD, Advice about and step by step mold cleanup advice at MOLD CLEANUP GUIDE- HOW TO GET RID OF MOLD and also MOLD CLEANUP - MISTAKES to AVOID. See CRAWL SPACE DRYOUT - home if your building is built over a crawl area.
Green link shows where you are in this article series.
Frequently Asked Questions (FAQs) about Use of Fungicidal Sealants and Anti-Mold Coatings to Kill Mold or Prevent Mold Growth, including antimicrobials, biocides, and similar products
Question: what fungicide would kill ringworm spores in a garage
what fungicide would kill ringworm spores in a garage - Margery, 8/26/11
Margery, ringworm (dermatophytosis) spores can be airborne according to various experts, but my OPINION is that cleaning or removing the source is critical; trying to cure any airborne indoor air quality problem by treating the air is not likely to work - the particle source remains. For cleaning indoor surfaces an adequate disinfectant is needed. Vets comment that using a fairly strong Bleach solution (1:10 dilution), lime-sulfur dip (1:33) have a LIMITED ability to inactivate ringworm spores indoors. A vet we consulted suggested that Enilconazole, if available, can be used as disinfectant area fogger (Clinafarm SG—American Scientific Labs, Janssen Pharmaceuticals ) but WATCH OUT, this chemical is not approved for this purpose in the US. THOROUGH cleaning of all hard surfaces is key.
We are removing laminate flooring to install wood flooring. When we removed the underpad the subflooring has mold in several places. We do not even know how this came about. How can we clean the subflooring to remove the mold before laying down the wood flooring? Thanks. - Bill & Bonnie 10/2/11
Bill & Bonnie, any common household cleaner, even soap and water, work find for cleaning off mold from subflooring. Be sure the subfloor has dried before installing new materials over it. You shouldn't need to use a sealant.
I have repaired doors in a retirement facility and need to seal the exposed wood. The sealant needs to withstand bio-hazard cleaners. Any suggestions?
I am hoping you have some insight to a sealant that can be used in a medical facility that will withstand the hash cleaners used after an out break.
Andy, we list a number of providers of biocides, sanitizers, and sealants in the article above and in the references at the end of this article. It would be most effective to ask your question to those folks directly to be sure that they understand exactly your requirements.
Question: we want a non slippery penetrating sealer that goes unnoticed after it dries.
We have a travertine pool deck and stairs approximate 2000 sq ft total.
Kip, take a look at MOLD RESISTANT CONSTRUCTION
There are some clear sealants, but I'm afraid that in native form they'd be slippery.
Talk to the manufacturer about adding an anti-slip to those paints or sealants. In other words you may be able, with manufacturer advice, fabricate a clear sealant that includes an anti-slip additive.
Question: Have you examined the Aegis Microbe Shield technology from mPact?
Regarding Your text which I Quote from above --
We have not examined nor directly tested the product you name nor peformed chemical tests on any other sealant, biocide, or antimicrobial or sanitizing agent. We do, however, review documents and technical literature about these topics and products, and we do have field and lab experience in testing buildings for mold contamiantion before, during, and after various approaches to mold remediation.
When evaluating the effectiveness, claims, or promises of any product it is useful to distinguish between marketing literature, "white papers" produced by the product manufacturer, and independent, peer-reviewed authoritative studies. In some fields, such as septic tank treatments and perhaps in the area of mold treatments, these distinctions are particularly important.
"Indefinitely" is ... well, a time period of uncertain length and may not necessarily be taken to mean "forever". This helpful comment is offered by the company:
The product is described as a proprietary formula, meaning we don't know what's in it. We did not find, among the company's download-available documents, independent, scholarly or peer-reviewed studies testing the long term durability of its surface coatings or treatments, though the company's product description is indeed quite interesting. The company's website offers a study, examining skin absorption in rabbits, reporting on the safety of an antimicrobial that sounds like the one referred to in the company's promotional video: organosilicon quarternary ammonium chloride.  Other downloads document that certain of the company's products conform with Boeing or other standards. None of these documents discusses the questions of use of biocides in buildings, particulary as part of mold remeditaion, their proper use, efficacy, and long term durability.
We are dedicated to making our information as accurate, complete, useful, and unbiased as possible: we very much welcome critique, questions, or content suggestions for our web articles. Working together and exchanging information makes us better informed than any individual can be working alone. InspectAPedia is an independent publisher of building, environmental, and forensic inspection, diagnosis, and repair information provided free to the public - we have no business nor financial connection with any manufacturer or service provider discussed at our website.
Question: fighting ringworm - do I have to get rid of every spore in my home?
After fighting ringworm for three monthes on our dogs and one cat plus ourselves which we contacted from a rescue kitten I have come to the conclusion that constantly cleaning your whole house, basement car, garage and clothes with bleach is an imposible task which will drive anyone crazy.Easier said than done.So if you get this scourage be prepared to live with it forever or move.You will lose all your friends and reletives with or without pets because they hear the word "ringworm "and head for the hills.My doctor says it's no big deal unless you live in a damp dark cave but the vet thinks it's the end of the world.You can't get rid of every spore and all it takes is one to re infect you?So what to do?If there is a hell i'm in it. - Carol Clark Hill 11/12/2012
The object of removing every single airborne or surface-dust mold spore from a building is, frankly, silly. The moment you open a door or window, spores enter from outdoors.
Once you've cured ringworm and cleaned wet shower floors etc, beyond normal cleaning and keeping an eye on your pets' health, take a look at our article on
Question: hurricane Sandy flooded my sub-basement dirt floor - should I put down chemicals?
I had a flood in my sub-basement during Sandy. The sub-basement was professionally dried and cleaned. Do I have to put some chemicals into it just to be on a safe side? The floor is dirt - Jate 11/17/2012
See these articles
Try the search box just below or if you prefer, post a question or a comment in the Comments box below and we will respond promptly.
Search the InspectApedia website
HTML Comment Box is loading comments...
Technical Reviewers & References
Related Topics, found near the top of this page suggest articles closely related to this one.