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Mold on EVA Foam Boat Flooring & Deck Rot Risks
EVA foam boat flooring is a popular choice among boat owners due to its aesthetics, styling and prevalence in new boats. However, issues such as mold growth and underlying deck rot can arise if the flooring is not properly installed and cared for. Moldy EVA foam not only looks unsightly, but can also pose health risks and accelerate the deterioration of your boat’s underlying structure. In this article, we will explore how to prevent mold growth, detect signs of deck rot, and implement best practices for cleaning and maintaining your EVA foam boat flooring.
Why Does Mold Grow on EVA Foam Boat Flooring?
Mold thrives in moist environments. Although EVA foam is water-resistant, it can trap moisture and debris within its pores, or more commonly, in between the foam and deck underneath. Poor installation and adhesion, repeated water exposure, and infrequent cleaning create ideal conditions for mold spores to flourish.
Signs of Mold on EVA Foam Flooring
- Visible black, green or white patches
- Musty or damp odor
- Sticky or slimy surface areas
- Discoloration or spots that worsen over time
The Hidden Threat: Deck Rot Underneath EVA Foam
While EVA foam provides a protective barrier, it can sometimes hide problems beneath. When not fully adhered to the fiberglass, or when adhesives begin to degrade over time, water can seep in underneath pieces of EVA Foam Flooring. Regular air temperature fluctuations in some cases can even cause foam adhesives to unseal, and reseal throughout the day.
Excess moisture trapped underneath the foam will lead to mold and can also eventually lead to deck rot, a serious deterioration of the boat’s underlying structure. Deck rot occurs when water seeps into the core layers of the boat’s deck, reaching wood or other materials that can decay over time. This can compromise your boat’s safety and structural integrity.
Signs of Deck Rot Underneath
- Soft or spongy spots on the floor
- Warped or buckling sections of the decking
- Unexplained drops in boat stability or uneven flooring
- Persistent moisture or water pooling despite cleaning
Preventing Mold and Deck Rot
- Ensure Proper Ventilation: Keep air flowing inside your boat to reduce humidity.
- Regular Cleaning and Drying: Clean your EVA foam flooring consistently and dry it thoroughly after exposure to water.
- Inspect Underneath: Periodically check sections of the foam for failures and examine the underlying deck for signs of rot or water damage.
- Control Moisture Sources: Address leaks promptly and use dehumidifiers or moisture absorbers.
How to Address Moldy EVA Foam Flooring
Once mold appears in the foam, there is not much recourse available to remove it. Mold spores become embedded in the foam and can easily return if not fully eradicated. The best solution is to completely remove any affected pieces, and replace them.
Detecting and Repairing Deck Rot
Make sure to perform regular visual inspections, especially after storms or heavy rain. Check for soft spots or areas that feel different when pressed. If Deck rot is suspected, consult a professional for repair- deck replacements may be necessary.
Avoiding Mold – Product Choice
For fiberglass decked boats, Corinthian always recommends a removeable floor solution like AquaMat®. This style of flooring allows for easy removal of your flooring for cleaning and drying which will in turn dissuade any potential mold or deck rot from forming. EVA foam boat flooring is often adhered to the boat deck – while AquaMat® flooring instead provides removeable coverage with easy access to your fiberglass deck for regular inspection. In addition, Corinthian Marine products contain MicroBan® for added biological growth prevention.
Smart product choice, regular inspections, diligent cleaning, and proactive repairs are key to keeping your boat in top condition. Address problems early to enjoy a safe, comfortable, and well-maintained vessel for years to come.