The Best RV Roof Sealants

One of the challenges of RV owners is to keep the RV roof from water damage. You want to enjoy your RV trip all season long, so you need the best RV roof sealant to fix any leaks around the seams and edges. The best sealant for RV roof should be weather-proof, durable, and long-lasting.

There are many RV roof sealants on the market today, so I’ll make things easier for you and streamline your choices. I’ll pick 12 brands of RV roof coating and sealants that I think will fix your leaky RV roof. Keep scrolling to check my full RV roof sealer reviews.

Best RV Roof Sealant Reviews 

1. EternaBond RoofSeal Repair Tape

The EternaBond RoofSeal promises to create a waterproof and airtight shield with just one step. This Eternabond RV tape is compatible with almost any roofing material, such as aluminum, EPDM, and fiberglass. Keep in mind that this RV roof repair tape is 4 inches wide and 50 feet long.

I love the versatility of this Eternabond RSW-4-50 because it seals any tear or open seam, as well as closes up roof joints. Since this RV roof tape seals to itself, simply cut and fold the product around an object. It’s that easy, so you can do it even if you’re inexperienced.

The beauty of using this 50’ RoofSeal sealant product is that there’s no mess after application. Additionally, Eternabond RSW-4-50 won’t degrade with extreme temperatures because the product is designed with a UV-stable backing. Once it settles on the surface, it’s almost impossible to remove.

Out of the tape sealants I’ve used, I think this 50’ RoofSeal sealant tape is the stickiest. This product was able to seal all the fine cracks of my EPDM rubber roof. It’s easy to apply because it sticks with just simple hand pressure.

2. Dicor 501LSW-1 Self-Leveling Lap Sealant

This Dicor RV roof sealant helps make a long-lasting seal along a roof’s edges, vent pipes, and around air vents. The Dicor 501LSW-1 is suitable for any RV roof material, including mortar, vinyl, and metal. This model is a pack of four sealant tubes.

I like this 501LSW-1 because it works well as a rubber roof sealant. It seals any place where there’s a connection to the antenna, ladder, and roof vent. I love its hassle-free usage: simply apply on the area where you want and leave the product to create a watertight seal. Plus, it’s a self-leveling product.

I recently used the Dicor 501LSW-1 to recaulk my RV roof, and I’m happy to see no drop inside the RV when we had a heavy downpour the next day. The consistency isn’t the same as water, but more of a runny putty. The roof sealant flows and spreads easily using a putty knife.

Another thing that I love about this camper roof sealer is its prevention of discoloration and degradation. I believe that this lap sealant is added with a stabilizer to be UV-stable against harmful UV rays. No matter where you put the sealant, it won’t discolor the material it’s applied to.

3. Geocel Pro Flex RV Flexible Sealant

Another RV roof seam sealer that’s easy to apply is the Geocel Pro Flex, which comes in a slim tube. I bought this product from Home Depot to fix my fiberglass roof’s side joints, and I’m impressed with its sealing performance. According to the label, GC28100 can work on just about any roofing material, like aluminum, steel, and wood.

I like the clear color of this trailer roof sealant because it doesn’t ruin my fiberglass roof’s appearance. It seems like I haven’t put anything on it at all. The product adheres so well that it even sticks on damp surfaces and seems long-lasting.

When this RV roof coating dries up, it turns into a hard plastic material. I observed that the product was able to withstand any extreme weather conditions and temperature changes. The best thing about this sealant is it won’t pick up any dirt and can even be painted to hide the repair after it’s fully cured.

Unlike silicone, Pro Flex doesn’t separate and is easy to remove with mineral spirits or a plastic scraper. It’s easy to use since the tube comes with a spout to control the amount. I particularly love to put this product on the sidewalls because it doesn’t seem to run.

4. Dicor BT-1834-1 Butyl Seal Tape

Dicor offers another excellent roof sealant for leaks with its BT-1834-1 Butyl Tape. This sealant is 30 feet long, so it can be used on many uniquely shaped joints. Thanks to its continuous roll, you can work fast without any skips.

I’ve been using this product to seal the parts around the light fixtures and support my fiberglass roof’s seams. I like the fact that I can shape the product in whatever form and size I want. As for the width, I find the ¾-inch easy to work with.

I discovered that putting the product in the fridge prior to usage makes it easier to install. The adhesive part won’t stick to my fingers when I try to shred the paper backing if the product is slightly cold. Thankfully, the tape doesn’t harden too much, so it’s easy to remove with a putty knife.

This product is easy to use because all you need is a pair of scissors. I like that this product seals without gaps for more effectiveness. It can also be squashed down perfectly for that perfect seal.

5. Beech Lane RV Roof Permanent Repair Tape

This repair tape from Beech Lane promises to stop leaks permanently. This product has a flexible butyl structure to apply on any surface, whether it’s a corner or a curve. It’s compatible with most RV rubber roofs, including EPDM, PVC, and Hypalon.

I decided to try this Beech Lane tape when my RV roof needed resealing. I like the backing on this product because it can be pulled out and folded back without ripping. This makes things easier because I only need to get the tape started with a little piece pulled out.

This rubber RV roof tape is 50 feet long and four inches wide, making it practical to use in large areas. I believe that it’s UV-resistant, so it won’t come undone when exposed to direct sunlight. The product is super sticky, so it’s effective in stopping leaks on joints and seams.

Thanks to its self-priming technology, the product sticks instantly. It can stretch, so it’s possible to do some slight curves on unique-shaped areas. Best of all, the price is reasonable, offering great value.

6. Kohree RV Sealant Tape

If you want to cover more square feet, this Kohree RV Tape might seal the deal. This product is four inches wide and extends as long as 50 feet. It’s ideal to use with EPDM, metal, and other roof materials.

I like this Kohree sealant tape because it’s so flexible that I can put it on any surface, whether it’s flat or curved. I used this product to repair my EPDM rubber roof on my RV, and I’m glad that it sealed the tear perfectly. It’s simple to use because it sticks under pressure instantly.

This product is UV-resistant and weather-proof, so I feel reassured by its long-lasting adhesive results. Good thing that I can coat or caulk the product with other roof sealants because I wanted to repair the water damage on the edge of my RV’s roof. Unlike other tape sealants, Kohree is easy to work with in cooler weather.

I also find this Kohree sealant tape very thick at 1.2 inches, so I don’t need to apply another layer to the problem area. I tried overlapping some pieces to make it appear nicer, and the product still sticks to itself prettily. As for the price, I think it’s far less expensive than other tape sealants out there.

7. Ziollo RV Flex Repair Caulking Lap Sealant

Ziollo is another good flex seal on RV roof with its self-leveling compound. This stuff works on various roof materials, including fiberglass, metal, and EPDM rubber roofs. A package contains four 10-oz tubes to cover more square feet.

This roof sealant is easy to use because you only need to squeeze it from the tube. It can be painted with any color you like after the sealant has fully cured. I could even use it together with other flex repair RV roof coatings to seal the seams.

I’m most impressed with the fact that Ziollo offers a lifetime warranty because it’s a reassurance of its outstanding quality. The formula consists of eco-friendly ingredients, so I don’t have to worry about its adverse effects on my family and pets. Whether wet or dry, this product sticks to create a watertight seal to RV roofs.

I love how this roof sealant sets to a smooth finish when I applied it on my RV rubber roof. It remains flexible and won’t shrink, unlike other roof sealants. I believe that this product has excellent weather protection because the RV caulk wasn’t affected by dust, dirt, and moisture.

8. Premier Pro Products RV Roof Sealant

Nothing is more versatile than Premier Pro’s RV Roof Sealant as it can work on all roof materials, including wood, metal, and rubber RV roofs. This product can even repair gutters, commercial roofs, and farms. It has silicone characteristics, so you can smooth it out before it hardens.

I like the packaging of this universal roof sealant because it comes in a pouch that you can reseal after use. You won’t need to use a caulk gun because the product only needs to be poured and brushed on. Surprisingly, it’s self-leveling, so I don’t need to coat more for placement.

The roof sealant seems to be of high quality because the manufacturer offers a 30-day satisfaction guarantee. I believe that the formula is free of isocyanate, solvent, and solids. After trying many RV rubber roof coating sealants, this brand is one of the few that stopped the leaks on my RV.

This resealable pouch lasts longer than a tube because it contains around 750 ml of lap sealant. For its price, it’s a great value. Also, this product is very convenient to clean and remove, unlike other roof sealants.

9. E-SDS RV Roof Sealant Tape

The E-SDS RV Sealant Tape is an excellent solution for leaking seams in your RV’s roof. This package comes with a rubber roller, so it’s easy to apply. It’s two inches wide and 50 inches long to cover more linear feet.

I believe that this tape is UV-resistant to prevent damage from UV rays. It’s flexible, so it can be formed in different patterns to patch unique-shaped surfaces. For someone like me who wants reassurance, I love E-SDS because it offers a 100% money-back guarantee.

The tape stuck quite well on a cleaned surface. I used a wet towel to remove any debris from the surface of my aluminum roof. Surprisingly, I find it easy to remove the clear backing utilizing a blade.

I actually like the rubber roller that comes with the RV roof sealant tape because it feels durable and comfortable to use. The roller gives a stronger bond between the tape and the surface. Together with the tape, the price is a great value.

10. Lippert Components 1021 Lap Sealant

The Lippert Components 1021 Sealant is designed to endure outdoor transportation and weather. It comes packed in a 304.6-ml tube with a spout for easy application. It can work on a variety of roof materials, including glass, metal, and rubber.

I like this self-leveling lap sealant because it’s available in various colors to suit your RV’s roof. Mine is white, so I chose the white color variant. Other colors include beige, almond, and gray.

This liquid roof sealant flows easily, so it suits best for horizontal surfaces. A small amount is cost-effective because a ¼-inch bead is enough to cover a 30 linear-feet area. I tried using this product to seal the skylights on my roof, and I’m impressed with its excellent performance.

The thing I love best is the scent of this rubber roof sealant because it’s devoid of any paint smell. I believe that the formula is low in volatile organic compounds (VOC), which explains its faint smell. And once the product is cured, you can paint it over with your favorite color.

11. CANOPUS RV Sealant Tape

The CANOPUS RV Sealant Tape offers a permanent bond to stop the leaks in all RV roofs. This product is four inches wide and 20 feet long, enough to last for many uses.

I like the fact that this product has an additional thick adhesive layer to seal the leaks more effectively. Additionally, the backing is UV-resistant, so the product can endure a hot, sunny day. Also, the tape is waterproof to resist moisture in sealing gutters and awnings.

The impressive thing about this item is that it stays flexible even in cold temperatures. I was able to fix my leaky EPDM RV roof with it. Since this comes as a self-priming tape, it offers a durable bond, plus a mess-free application.

The price is another selling point of this product. It’s a great deal since it works on most surfaces, including metal, rubber, and glass. Another great thing is that this product is paintable because I like to paint my RV roof with a new color.

12. Eazy2hD RV Self-Leveling Lap Sealant

The Eazy2hD RV sealant might be the best choice in sealing RV’s roof air vents, edges, and more. This is a pack of four 300-ml metal tubes to give more applications. The lap sealant is compatible with many RV roof materials, including fiberglass and concrete.

I love the fact that the metal tube is well-sealed, so I don’t have to worry about accidental leaks. The removable screw on the tip is convenient because it makes it way easier to clean up. It also allows me to adjust the tip to suit various jobs.

Even on damp surfaces, this RV roof sealant still adheres very well. I believe that it lasts for a long time because it’s UV stabilized. Best of all, the manufacturer offers a 6-months money-back guarantee, so I feel reassured that it’s made of premium quality.

The approximate area that this RV roof sealant covers per tube is 24-26 linear feet. Since this package comes with four tubes, I have more than enough to cover the seams and edges on my leaking RV roof. For the price, I think it’s a steal given the many tubes you can get.

What To Know Before Buying RV Roof Sealants

There are many things to keep in mind if you want to choose the top-rated RV roof sealant. To ease your burden, here are some critical details that you need to know.

The Different Types Of RV Roof Sealants

Choosing the top-rated RV roof sealant depends on many factors, such as the type of RV roof materials, operating temperature, etc. By learning this information, you can choose the right kind of roof sealant to use. Let’s take a look at today’s popular types of RV roof sealants.

• Acrylic

Acrylic is one of the most durable types of roof sealants. Composed of high solids emulsion polymers, these sealants are perfect for extremely hot temperatures and offer excellent resistance to mildew and dirt buildup.

This type is easy to work with and available in different varieties, including premium and standard. These sealants can be roll-applied or come in a roof sealant spray. Since acrylic is water-based, it won’t work best in cold temperatures.

• Butyl

Butyl RV roof coating is known for its stringy consistency and excellent tensile strength. It’s usually made of solvent-based polymers, so it’s quick to dry, reflective, and ideal for roof repair. This type of RV roof sealant can be roll-applied or sprayed.

The drawback of butyl is its lack of color stability and difficulty of application. Sometimes, more material is necessary to achieve the right thickness, making it less cost-effective than other RV roof coatings.

• Silicone

Silicone is the best choice when it comes to UV resistance and water buildup. Compared to other types, silicone is more resilient because it erodes more slowly. With higher solid content, you need less material to accomplish the desired thickness.

However, this roof sealant is a great dirt attractor. It also tends to get slippery when exposed to moisture. Another weakness is its low resistance to tearing.

• Urethane

If you’re looking for durability and strength, urethane is your best solution. This type of sealant provides great resistance to impact, hence more recommended on the road. Urethane coatings are flexible because they endure the natural thermal movement of roof construction.

There are actually two types of urethane sealants – aromatic and aliphatic. Aromatic is less expensive and less UV-stable than aliphatic. Both variants can either be applied through spray or roll.

Benefits And Drawbacks Of RV Roof Sealants

RV roof sealants provide a handful of benefits, which is why they’re important for RV maintenance. The main benefit of roof sealants is to patch the holes and cracks around the vents, air conditioners, and other items in your roof, including the seams and joints. But before holes and cracks manifest, you can use these products to provide an extra layer to your RV roof and extend its life.

An RV roof sealant can help waterproof your roof so it can endure hard rains on the road. The best roof sealants are even breathable to let the moisture from household chores escape through. These products also provide excellent UV protection to protect the roof from damage.

In some instances, roof sealants can help resist fire. They can even keep mold from appearing. Rubber roof coatings, in particular, are great in preventing mold growth.

However, resealing the roof means more work because you need to remove the previous coating, primarily if you use a silicone one. Some sealants won’t stick to silicone.

Some formulas also contain dangerous ingredients like isocyanate, which is a known carcinogen.

RV Roof Sealants Vs Coatings

Your RV roof is just like your residential home, so it needs a makeover. Old RVs that are more than nine years old should have the whole roof recoated, especially if it hasn’t been maintained. Coatings are basically a liquid meant to cover the entire roof. No matter what RV roof material you have, you need to purchase a coating that’s suitable for your RV roof material.

Many RV roof sealants are specially designed to mend cracks for a certain area where you see a leak or prevent it from happening. As I’ve mentioned above, they come in various forms, like caulk, tape, or liquid. They mainly seal the holes and cracks, as well as coat the roof.

What To Look For In A Good RV Roof Sealant

When picking the right sealant for your RV roof, it’s vital to pay attention to these factors.

• Consistency: If you’re trying to seal vertical joints, choose a thicker consistency, like non-sag sealant formulas. Pourable sealants that have a liquid consistency are more applicable to horizontal joints.
• Long-Lasting: You want the seal to last for long, so you don’t have to suffer from water damage in the middle of your road trip. The lifespan of sealants provided on the label might not be true at all times. In general, silicone provides the longest lifespan, around 20 years, followed by acrylics and butyls.
• Flexibility: You want a flexible sealant if you’re planning to put it in uniquely shaped joints. If not, you can go with a harder sealant.
• UV And Weather Resistance: The best roof sealants provide excellent protection against harmful UV rays and all types of weather.
• Ease Of Use: The type of sealant and the packaging usually dictate how easy a product is to use. Tapes are easier to use because you only need to peel the backing off and leave no mess. However, the removal of the backing can be hard for some butyl tapes because they stick on your fingers or rip apart.

For the liquid formulas, the tube packaging makes the application easy. Look for a self-leveling feature, so the liquid roof sealant flows naturally on the applied area.

How To Fix A Leaking Camper Roof

The worst thing that can happen in your trip is to have a leaky roof, so fix the holes and cracks before you go. The repair you need depends on what roof material you used. If you’re a novice, here are some repair tips that you can remember.

Fixing An RV Rubber Roof

Rubber roofs have a longer lifespan than any other roof material, but they need special care. Avoid using petroleum-based products because they can cause irreparable damage.

To fix oxidized rubber roofs, use two coats of EPDM rubber roof coating. Most EPDM coatings come with a primer, and you have to use that before applying the sealant. You can also use rubber roof kits.

To seal the joints, apply a self-leveling sealant. Mend any cracks to prevent water damage. Clean the roof with soapy water before sealing any cracks.

Fixing An RV Metal Roof

Any household roof coating can help seal an RV metal roof. For structural damage, the best type of roof sealant to use is seam tape, like Eternabond. These products come in various widths, but 4-inch rolls are my favorite to seal the RV roof’s seams.

First, you need to clean the roof of any debris. Next, peel the backing off and apply it to the seams.

Fixing An RV Fiberglass Roof

Fiberglass roofs oxidize just like rubber roofs. Use wax to bring back its shine. For leaks, you can use any adhesive sealant. Smooth it out with a tool for a neater finish.

Who Makes The Best RV Roof Sealant

Dicor makes the top-rated RV roof sealant because all their RV roof sealants adhere well to any surface. They’re also weather-resistant to endure the extreme weather conditions outside. Dicor 501LSW-1 offers a self-leveling feature, while the BT-1834-1 butyl tape can be shaped in unique patterns to fix uniquely shaped joints.

A good contender is EternaBond because it makes the toughest repair tape out there. For example, its RW-4-50 provides the strongest bond for any surface. This brand sticks easily using gentle hand pressure.

How Do RV Roof Sealants Work

RV roof sealants offer a protective seal against UV rays and moisture to keep the RV roof in top condition. In most cases, these products can fix minor leaks before they cause serious damage. They seal up any cracks or holes around the vents, air conditioners, and edges on the RV roof.

A roof sealant is basically a viscous material that turns solid after applied to any surface. Once it’s fully dried, it gives your RV roof extra protection from the elements outside. Most of the roof sealants are virtually compatible with any roof materials, but some of them are designed to work with certain roof materials.

What Is The Best RV Roof Sealant

The top-rated RV roof sealant should create a strong bond to the surface to which you planned to stick it to. It should provide excellent weather and UV resistance, so it can last for a long time. If you’re a newbie, you need the product to be as easy to use as possible.

As much as we want the product to be affordable, you have to consider the quality. The quality shouldn’t be compromised with the price. A warranty or guarantee can be a great reassurance for quality.

How Do You Use RV Roof Sealant

The use of RV roof sealants may depend on their type. For a rubberized leak stopper, you need to wear gloves because it’s difficult to wash off from the skin. Use a trowel or old paintbrush to coat the roof uniformly. Try adding an extra inch on all sides for optimum results.

Even if other parts aren’t leaking, make sure to apply a coat for protection. Coat the seams and anything that sticks out, like vents and antennas. In most times, you might need a caulk gun to apply the sealant efficiently.

For ripped or torn RV roofs, you can infuse a sealer with fiberglass tape. First, spread the sealer on the area that needs fixing, then lay the fiberglass tape over the mend. Finally, apply more sealer.

Regardless of the type, you need to clean the area of any dirt and debris before application.

How Much RV Roof Sealant Do I Need

The amount of roof sealant needed might depend on the severity and linear feet that you want to repair. You need two coats of EPDM coating if you’re repairing a rubber roof. To recoat your RV’s roof properly, you might need three coats.

One coat is enough if you like to use a silicone roof sealant, while several coats are needed for acrylic and urethane types of sealants.

For repair tapes, it depends on the width and thickness. A single layer might suffice if you have a wide and thick tape. For narrower and thinner tapes, consider adding an extra layer for reinforcement.

How Much Does Roof Sealant Cost

The price differs for each brand. Lap sealants that come in a package of four tubes often cost around $37-$40. If you want to save, you can choose a single sealant. Geocel GC28100 costs around $9.

Repair tapes are more expensive, especially the 50-feet long variants. For example, Eternabond costs about $48. The wider and longer the tape, the more expensive it is.

Can RV Roof Sealants Be Used On All Surfaces: Rubber, Fiberglass, Tpo, Epdm…

It all depends on the brand’s formula. Some brands can be used on all surfaces, while others are specially made for certain roof materials. The ideal thing to do is to check the product’s label and determine the compatible surfaces.

Conclusion

As RV owners, part of our regular RV maintenance is to get our RV roof protected from leaks. You need to get the best RV roof sealant possible, so you don’t have to suffer from water damage during travel. My top pick is the Dicor 501LSW-1 because it’s self-leveling to seal horizontal surfaces, like your roof, effectively.

If you want to seal your leaky roof with tape, Eternabond RoofSeal provides the strongest bond. This RV roof sealant is wide and long to use in numerous applications. To fix uniquely-shaped areas, the Geocel GC28100 Pro Flex might be a good solution.

Philip Lopez

Okay, so I’m Philip Lopez. I join Riverside Trailer as an editor, where I will be doing research for both content and reviews. I contribute to studies aimed at understanding the most typical problems encountered by RVers on the road. I also keep up with the newest RVing gadget innovations so that I can promptly evaluate and recommend the best options.