Repairing Guides

how to repair delamination on rv

by Amiya Bosco PhD Published 3 years ago Updated 2 years ago
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How to Repair or Fix Delaminated Fiberglass on RV

  • Step One: Gather your tools You will need the following: Epoxy resin Resin hardener Plastic syringes Plastic tubing Mixing cups Scrap wood pieces Wedges and shims Rubber gloves Plastic sheet ...
  • Step Two: Consider the Logistics Ask yourself: Where are you going to park your camper during the repair? Can you cover it if necessary? Do you have all the tools? ...
  • Step Six: Gain Access Take the doors, windows, edging, and trim off so you can get to the area that needs repairing. ...
  • Step Ten: Repeat

What is the best way to fix RV delamination?

  • Epoxy Resin and Hardener
  • Plastic Syringes
  • Plastic Tubing
  • Mixing Cups
  • Clamps
  • Wood for Bracing
  • Rubber Gloves
  • Wedges
  • Plastic Sheeting
  • Basic Tools

What causes RV delamination?

What to Do If You Spot Delamination on Your RV

  • Find and Seal the Leak. The first step is to find and seal the leak. ...
  • Check for Additional Damage and Mold. Delamination may be the first visible sign of a major problem hidden within the walls and under the carpet of your RV.
  • Get a Professional Repair Estimate. Know when a problem is beyond your skill or expertise. ...

How to recognize, treat, prevent RV sidewall delamination?

Tips for a successful outcome

  • Work from the bottom up clamping as you go
  • Mark the area to be treated with blue painter’s tape
  • Cover the area with plastic and painter’s tape to protect the surface from dripping epoxy or spill over
  • Inject above the area to be treated so the epoxy drips down into the area you’re treating

More items...

How to repair RV dry rot and fiberglass?

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Can you fix delamination on an RV?

To fix RV delamination, once it gets really bad, requires stripping the sides and basically rebuilding the exterior walls. In most cases, this is a cost-prohibitive total loss. That is why it is best to prevent RV delamination by frequently inspecting and sealing every exterior seam.

How much does it cost to fix RV delamination?

They can range from $100-$300, and larger jobs will require more expertise. Don't bite off more than you can chew when it comes to repairing delamination.

Can you repair delamination?

If you're prepared to give it a go yourself, it can prove to be a relatively cheap fix. All you need is a delamination repair kit, which can be easily found online. A delamination repair kit will usually include a mains substance and hardener which you mix together, like this one sold on Magnum Motorhomes.

How do you repair delamination on an RV wall?

1:463:57RV Camper Motorhome Wall Delamination, Easy DIY wall fix for ...YouTubeStart of suggested clipEnd of suggested clipSo we addressed this by starting to flood the area with the compost. Slv after clamping and curingMoreSo we addressed this by starting to flood the area with the compost. Slv after clamping and curing you can see the wall is quite hard along this edge.

What causes RV sidewall delamination?

The most common cause of the delamination problem is an owner failing to periodically re-seal seams with lap sealant. As a consequence, RV insurance companies and extended warranties don't usually cover RV delamination repairs.

What does RV delamination look like?

0:246:29What you need to know about RV Delamination - YouTubeYouTubeStart of suggested clipEnd of suggested clipThe reason why it's bubbling like that is because it has lost its bond to the other materials theMoreThe reason why it's bubbling like that is because it has lost its bond to the other materials the styrofoam. Inside the aluminum studs in there.

How do you fix fiberglass delamination?

3:3113:45RV Delamination Repair Tips // How To - YouTubeYouTubeStart of suggested clipEnd of suggested clipThe resin inside behind the panel then I would mix a small batch of epoxy. And basically suck it upMoreThe resin inside behind the panel then I would mix a small batch of epoxy. And basically suck it up into the injector. And then I would move to the area that I was going to treat.

What causes delamination?

Delamination is a critical failure mechanism in laminated fibre-reinforced polymer matrix composites, and is one of the key factors differentiating their behaviour from that of metallic structures. It is caused by high interlaminar stresses in conjunction with the typically very low through-thickness strength.

How do you repair a fiberglass RV wall?

1:148:14How to repair a hole in a fiberglass RV - YouTubeYouTubeStart of suggested clipEnd of suggested clipWe used an epoxy. I use the West Marines epoxy which is excellent. Product. You can buy little kitsMoreWe used an epoxy. I use the West Marines epoxy which is excellent. Product. You can buy little kits for about 38 bucks is all you really need to do this entire.

How do you repair fiberglass RV siding?

0:092:22How to fix RV Wall Delamination- DIY Fiberglass Siding Fix - YouTubeYouTubeStart of suggested clipEnd of suggested clipThe repair area RV walls are made up of many materials. And when these materials separate gluingMoreThe repair area RV walls are made up of many materials. And when these materials separate gluing them back together is one solution apply a clamping force is required. When doing this process.

How do you fix RV siding?

2:4011:00How to Repair the Aluminum Siding On Your Travel Trailer! DIY!YouTubeStart of suggested clipEnd of suggested clipSo basically the way that this works is there's a piece of rubber trim right here that you pull outMoreSo basically the way that this works is there's a piece of rubber trim right here that you pull out which exposes the screws. I believe this is one piece of aluminum. That is held in with screws.

What causes fiberglass delamination?

Delamination is when the layers of fibreglass cloth and resin separate from each other or from the core sandwiched between the layers. It is usually caused by physical stress to the fibreglass surface which splits the surface skin and allows water to enter the laminate and travel into the core.

What is delamination in RV?

Each layer of material is bonded and reinforced to each other. Delamination occurs when debris (such as from the road or natural sources like hail) hits the RV over again. The fiberglass is durable and can bounce back, but the Styrofoam and wood aren’t as strong.

How to tell if RV is delaminated?

Look for any creases or bubbles and press on them. If the crease or bubble feels spongy to press , it’s a sign of delamination.

How much does lap sealant cost?

Lap sealant is relatively inexpensive (about $35 for four tubes), especially compared to delamination repairs. The failure to regularly use lap sealant (at least once a year, depending on how often you use your RV) can cause extensive damage, including sidewall delamination.

How long does an RV roof last?

RV roofs come in various materials, but as a general rule of thumb, your RV roof generally has a 20-year lifespan on its own. This time is the reason why maintenance and preventative measures are so essential to extend the lifespan of your RV’s roof.

Can you fix RV sidewall delamination?

Despite the cost and difficulty of repairing extensive RV sidewall delamination, there are a few things you can do to fix minor delamination and even prevent it from happening in the first place. However, fixing delamination yourself is no easy task, and you must be willing to put a lot of time and effort into repairs.

Why is it important to take care of an RV?

Taking care of your RV is important to keep it running and ready for family road trips for years to come. When the siding on the RV begins to look bubbled or wavy, the vehicle might have some RV delamination.

Can you use a delamination kit on a RV?

It’s important to note that if your RV has water damage in any of the inner layers, a delamination kit will not work. To use a kit and re-glue inner layers, you’ll have to remove the outer fiberglass to access the wood and Styrofoam. Use the syringes and tubing to get into hard-to-reach areas.

Before Repair

Two years ago I noticed the side wall on the back corner of our 2007 RV starting to bubble up. Several areas on the left rear of the motorhome were bulging. Some worse than others. When I pressed on the wall panel it would move in an out. This was a classic sign of sidewall delamination.

After Repair

With the amount of effort involved I was happy with the result. In addition to what you can see though, several repairs and improvements were also made to reseal and secure all seams.

Is this a difficult project?

YES. You shouldn’t underestimate the complexity of this project. Once I was ready to start, it took me 7 full days to complete.

Tips for a successful delamination repair

I developed several tips and processes while repairing the delamination on my RV that I’ll explain and demonstrate in this video.

How much does it cost to fix the delamination?

The basic cost of materials came to around $200, but I was able to buy just about everything I needed on Amazon. What is not included in that cost are the scrap pieces of wood I used, my tools (clamps, etc.) that I already had, plus countless hours of my time.

Delamination Repair Process

There’s a lot of planning that needs to take place prior to starting a project like this. I would say that the planning is the most important part of this project. It’s important to get it right the first time. After injecting the resin, you’re unlikely to get a second chance.

Delamination Repair Process

Here are the general steps I followed to repair each delaminated area. You’re process may be slightly different depending on the location and extent of your delamination.

How Much Does It Cost to Fix RV Delamination?

The cost to fix RV delamination is largely dependent on how many sections or panels are affected by it.

Delamination on Camper

Campers and to a lesser extent, trailers too, are often made with a fiberglass outer shell.

How to Repair Delamination on RV

Like with any RV exterior wall repair, it’s necessary to work through it step-by-step. Use the list of required items mentioned earlier to perform the task.

Fixing Delamination on Camper

Solving delamination on a camper is not much different from a motorhome, or a travel trailer.

Is RV Delamination Covered by Insurance?

Whether a motorhome, trailer, or camper, delamination is not always considered coverable by RV insurance. It depends on the extent of the insurance policy coverage.

Should I Buy a Camper with Delamination?

Following on from the previous points, is it sensible to buy a camper with delamination?

Closing Thoughts

Regardless of whether delamination is only present in one corner of a single panel or it’s all over one side of the camper or motorhome, it’s no 5-minute fix.

How To Spot RV Delamination

You’ll never get to work if you don’t know how to spot delamination in the first place. Here are the signs you need to watch out for:

How To Approach Delamination Repairs

The separation of the layers of your RV structure can cause some potential problems, which is why your goal should be to arrive at an RV structure in which the layers once again sit on each other comfortably.

Repairing RV Delamination Yourself

What about handling it yourself? It’s a complicated process of shooting an epoxy mixture into the layering to promote adhesion— To Wander Freely has a clear and comprehensive guide for this specific process.

Why is my RV siding bulging?

Bulging aluminum siding could indicate that the staples, adhesive or screws lost their grip on the frame and have allowed the aluminum siding to loosen up. You may not see the bulge when your RV is parked but it will show up as you drive. Just keep your eye out.

How big is a fiberglass RV hole?

You can fix it yourself and save a lot of money. Filon fiberglass usually comes in rolls and can be cut to different sizes from 1 to 40 feet in length. The rolls are usually a standard 8 1/2 feet wide.

How to fix bubbles in fiberglass?

The repair of this problem may take a little skill. Once you start getting bubbles in your fiberglass you need to work carefully and sand down the bubble till you get to solid fiberglass. Next, you have to use fiberglass cloth and resin putty (gel coat or epoxy) until you get the spot back to level.

Can you bang out dents on RV siding?

The only hindrance to this is that it may not be possible to bang out the dents on RV siding. Aluminum is an extremely difficult metal to bang out dents. It is just to easy to re-dent it in the opposite direction. The only cure for this problem is that you would have to replace the aluminum panel with a new one.

Can you patch aluminum siding on an RV?

RV Siding Patch. Generally, when you need a patch to your your RV siding, it is easier to just replace that damaged section if your siding is aluminum. There is probably less work in replacing the damaged section than there is trying to repair it.

Can you fix RV siding?

Repairing your RV siding has a lot of twists and turns. A lot of repairs will depend on the size of the damage, where it is and what material your siding is made of. The important issue to remember is that most of the damage done to your RV cannot wait for very long. The longer you wait the more damage you may cause.

Can you replace aluminum with fiberglass?

For aluminum, you can easy remove just one damaged section and replace it with a new one. Repairs are simple and often can be done with only one extra pair of hands. But fiberglass is different. While you can make small repairs, you usually have to replace the whole side panel of fiberglass to get the problem solved.

How to fix camper delamination?

For a general idea on how to fix your camper delamination at home, you will need epoxy, an injector, clamps as well as other common tools. First, find the delaminated area, inject the epoxy into the affected area, then clamp it shut and wait until it dries. This is a simple process, but the extent of your damage may need to be completed by ...

What to look for when examining the exterior of a camper?

When examining the exterior of a camper, a travel trailer owner will want to look for sections of the exterior walls that do not look flat and smooth. There should not be any waves or bubbles underneath the outer coating.

Why is it important to keep a travel trailer in pristine condition?

Keeping a travel trailer in pristine condition is important to many owners. Having delamination issues will cause the trailer to not look its best. This is best prevented by regular maintenance of the sealants on the rig itself.

What is the problem with a travel trailer?

One of the issues a travel trailer can have that will need to be fixed as soon as possible is being able to fix the fiberglass or outer exterior coating when it begins to pull away from the camper itself. This problem is known as delamination and will require immediate maintenance and fixing when it occurs.

How many layers are there in a camper?

Some travel trailers even have as many as 7 to 10 layers depending on the model. Each of these layers are sealed together with a strong and hefty glue.

What happens if a travel trailer is left unattended?

If the issues are left unattended and not fixed, there is a possibility that the trailer will not be able to be fixed. This is why spotting and caring for this problem when owning a travel trailer is one of the most important maintenance items to conduct on a regular basis.

What does it mean when a travel trailer makes a hollow sound?

This will usually sound like a hollow spot, indicating that the coating is not adhering to the travel trailer.

What is RV delamination?

Before we get into RV delamination (and RV delamination repair costs), we should first talk about how exactly the walls of your RV are constructed. If you look at the inside wall and then the outside wall of your RV, you’ll probably notice they’re different. That’s because the walls of your RV are built like a “sandwich” of different materials.

How much does RV delamination repair cost?

If you’ve discovered delamination on your RV, your options depend on your situation. Professional RV delamination repair costs can climb quite high. If the damage is minor, however, it may be possible to fix it yourself at a reduced cost.

How do you prevent RV delamination?

Repairing RV delamination is complicated and RV delamination repair costs can be extreme. Because of this, prevention is a much better solution. Have you ever heard the proverb: “an ounce of prevention is worth a pound of cure”? It applies here.

RV delamination solutions

RV delamination repair costs can be quite high. Repairs can quickly soar to become multiple-thousand-dollar ordeals. And in a worst-case scenario, you may have to retire the RV entirely. Thankfully, DIY repair is an option in some cases, although it will take a fair amount of elbow grease.

Track your RV maintenance and repairs

Make sure you keep track of all your RV maintenance and repairs with an online tool such as Maintain My RV. Not only can you keep all of your documents in one place, but you’ll also receive timely reminders when maintenance is due to help you avoid costly repairs and potentially serious accidents.

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