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Preventing Fiberglass Damage in RVs: Tips and Best Practices

September 11, 2024

RVs let you hit the road while enjoying home comforts, which is why they are so popular among adventurers. However, it’s important to maintain your RV’s exterior – especially the fiberglass – to keep it in great condition for years to come. Fiberglass damage is a common problem that can lead to expensive repairs if not addressed promptly. This article will discuss how to repair RV fiberglass exterior damage and share some best practices for preventing it.

Understanding Fiberglass Damage in an RV

Fiberglass is lightweight and durable, which makes it a popular material for constructing motorhomes. But even though it is tough, there are still several things that can cause damage to fiberglass:

  • Rocks or debris hitting against the vehicle while driving.
  • Prolonged exposure to sunlight could cause fading and weakening of the material.
  • Hail or other severe weather conditions create cracks or dents.
  • Neglecting minor issues can lead to structural weakening and costly repairs as these problems escalate.

Knowing these risks will help you prevent such damages and keep your recreational vehicle ready for any trip.

Prevention Tips Against Fiberglass Damage

Regular Check-ups and Maintenance

Regularly ensure that you have your motorhome checked by professionals who specialize in RV maintenance services. This way, potential problems can be detected early before they become worse. Inspect its exterior parts, especially those made from fiberglass. Look out for signs like peeling paint due to fading from prolonged exposure to direct sunlight or even small cracks, which might seem insignificant but could grow into big ones if left unattended.

Invest in High-Quality RV Covers

When your RV is not in use, especially during off-seasons, it’s essential to cover it with a high-quality RV cover. This protects the fiberglass from UV rays, rain, and other environmental factors that could cause damage over time. For those living in areas prone to hail, consider using a cover with extra padding for added protection.

Consider Titan Spray-On Roof Lining


One effective way to protect your RV from harsh weather conditions is by upgrading to Titan Spray-On Roof Lining. This durable layer offers superior protection against hail, UV rays, and other elements that can damage your RV’s fiberglass. By reinforcing your roof, you reduce the risk of leaks and other issues that could lead to fiberglass damage.

Safe Driving Practices


While on the road, practice safe driving to avoid impact damage from debris. Stay alert and maintain a safe distance from other vehicles, especially large trucks that may kick up rocks. Driving carefully on gravel roads or in construction zones can also minimize the risk of damage.

Store Your RV Properly


When not in use, store your RV in a covered or enclosed space if possible. This prevents exposure to the elements, reducing the likelihood of fiberglass damage. If indoor storage isn’t an option, consider investing in a custom shelter to protect your RV from the weather.

How to Repair RV Fiberglass Exterior Damage

If your RV’s fiberglass does sustain damage, it’s important to address it promptly to prevent further deterioration. Here’s a basic guide on how to repair RV fiberglass exterior damage:

  1. Prepare the Area
    First, clean the damaged area thoroughly using a degreaser or isopropyl alcohol to remove any oils, wax, or contaminants, then ensure it dries completely. Use sandpaper to smooth out the surface and eliminate any loose fiberglass, starting with a coarser grit and gradually moving to a finer grit for a smooth finish. This step is necessary for adequate adhesion of the repair material.
  2. Apply Fiberglass Repair Kit
    Use a resin and fiberglass cloth that comes in a fiberglass repair kit. Read and follow the instructions on the kit carefully. Apply the resin to the damaged area, then place a piece of fiberglass cloth over it. Smooth out any wrinkles in the cloth while adding more layers if necessary until you achieve the desired thickness or strength required for your application. Allow it to cure according to the manufacturer’s instructions.
  3. Sand and Paint
    Once dry, sand the area flat with 80-120 grit sandpaper to achieve a smooth finish. Finish by applying matching paint to restore the appearance of your RV. Use high-quality brushes or rollers for the best results.
  4. Seal the Repair
    Finally, seal the repaired section with an appropriate sealant, such as silicone caulk, to protect against moisture penetration, which can lead to further damage and accelerated degradation due to UV exposure over time. Be sure to extend the sealing process beyond just the immediate repair area. Carefully inspect and seal any adjacent areas, as damage to one section can often impact nearby components or create vulnerabilities in other parts of the structure. Allow everything to cure fully before moving on to the next step; otherwise, all your work could be compromised.

Frequently Asked Questions

Q1: How often should I inspect my RV’s fiberglass?
A1: It is advisable to check it once every six months unless it is used frequently or stored outdoors.

Q2: Can I fix my RV’s fiberglass damage myself?
A2: Yes, minor repairs can usually be done at home using kits available from most automotive stores. However, major repairs may require professional assistance offered by specialists found within RV repair shops near you.

Q3: What are some benefits associated with Titan Spray-On Roof Lining?
A3: Titan Spray-On Roof Lining provides durable protection against weather elements, making it the last roof your RV will ever need by reducing the chances of leaks and minimizing the risk of rotting underneath linings made from other materials.

Q4: How do sun rays affect the exterior parts of my RV made from fiberglass?
A4: You can prevent damage by using high-quality RV covers or parking it in the shade as often as possible to protect it from harmful ultraviolet (UV) rays.

Q5: Will buying custom-made shelters help guard against these elements?
A5: Yes. If indoor storage is not available, constructing a shelter that fits well over the entire RV will go a long way in ensuring its longevity while offering maximum protection against different weather conditions, potentially saving you money on costly repairs later on.

Conclusion

Keeping your RV looking attractive and ready for use is easy once you start taking care of its various sections, like the fiberglass parts. Doing so makes it eye-catching throughout the years, reducing the need for frequent repairs or replacement of worn-out materials. Remember that prevention is key—regular inspections and RV maintenance services are essential to keep your RV in top condition for your next adventure.

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