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Mold Remediation of Campers & Trailers

By: Matthew Yurina, Sr. Mold Remediation Specialist



CONTAIN- the mold from spreading into uncontaminated areas;

KILL- the mold;

REMOVE- the dead mold and materials used for remediation; and

PROTECT- the cleaned out area against future mold infestations.



Campers and trailers are one of the most susceptible things in the world for mold growth for one simple reason: they spend time outdoors and can eventually gain leaks. Any organic or cellulose based surface (wood, upholstery, sheetrock, etc.) that remains damp for more than 24 hours is potential food for mold.

Before entering any area infested with mold or mold spores, be sure to have a P100 respirator. This will protect against 99.97% of mold spores. During remediation mold spores will be stirred up in the millions, and, depending upon what species youíre dealing with and how susceptible you are to that species, breathing in spores could be extremely dangerous. Itís also advisable to have gloves, goggles and protective clothing.


Canvas with mold growth can be attempted to be cleaner with oxygenated bleaches and or by steam cleaning. It may not be possible to remove some mold and mildew stains without destroying the canvas.  Once the canvas has been cleaned it can be treated with Oxy-Mold MX-500 to kill the mold and mildew growth. Treat two times over a 24-48 hour period.

Assuming youíve dried out the camper or trailer in its entirety and understand the full extent of the mold growth, youíre ready to perform the actual remediation. Infested porous materials like drywall, wafer board etc. and insulation need to be removed up to three feet from the physical mold growth. Treat the nonporous surfaces with the Oxy Mold MX-500, and use a brush or scrapper to take up as much of the growth as possible. Put the mold into plastic bags or wrap it up in 6mil polyethylene and remove it from the area carefully without spreading spores around.

Upholstery with visible mold growth can try to be soaked in Oxy-Mold MX-500 for 30 minutes or more and dried two times. If the mold smell is not gone then the material should be thrown away and replaced. If the upholstery has no visible growth and is just suspected of having spores trapped in it, youíll need a steam cleaner to apply the fungicide to the surfaces and or the cushion material. The steam cleaner will push the fungicide much deeper into the upholstery than spraying or Fogging. Youíll need to apply the MX-500 at least twice, allowing the upholstery to dry for at least 24 hours in between applications. For wood, metal, fiberglass, etc. surfaces, youíll need to apply the fungicide with a pump sprayer
or fogger. Allow to dry and treat 2x.  A fogger is recommended if the air inside is contaminated with mold spores or if a general mold or mildew smell permeates.

Once the mold has been removed and the areas have been treated with a fungicide, youíll want to conduct post testing (clearance testing) to be sure that the mold is dead. This is essential in boats because they get damp easily, and even small amounts of moisture can start mold growing again if live spores are still present. Itís recommended to do at least one indoor air sample test, and up to two or three swab surface tests (around the area where the mold growth was the worst) to be sure youíre mold free.

Canvas can be treated with a fungicidal sealant that can prevent future mildew and mold growth. Always test a small area for color steadfastness before completely using the product. The Anti-Growth sealant can provide up to five years of strong protection against future mold growth, and is going to be the best way to prevent mold from growing again.


After the mold remediation is completed, mold test (clearance testing) all of the remediated surfaces plus the air of each room in the basement, and the outward air flow from each heating/cooling duct register to find out if those areas are now mold safe prior to rebuilding the cleaned out areas with new building materials.


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This is an informational website about mold, it's health effects, and how to treat it. Although Trask Research, Inc. believes it to be accurate, Trask Research, Inc. make no representation, warranty or guaranty, and disclaims any liability, with regard to the accuracy or completeness of the information, or the results of any action taken by anyone who relies on the information. If you have any question regarding your particular application, we ask that you seek professional advice and assistance in your area. Trask Research, Inc. is not responsible for any damage or loss due to the use of this information. Use this and any information obtained at this web site at your own risk.