Best RV Roof Sealants Reviewed & Rated for Quality

Maintaining a recreational vehicle is not an easy task. You have to protect it from outside threats and weather elements that could cause a lot of damage. The roof of your vehicle suffers the most! Due to constant exposure to the sun, rain, and snow, it tends to deteriorate rather quickly. Of course, you already have a quality cover to protect your RV and tools to keep it in perfect condition. But sealing the RV roof is a different type of job!

If you have to deal with leaks and cracks, you need a perfect roof sealant for the job. You can’t just use any kind of tape or coating. What you need is a specially designed product that will keep the roof in perfect condition for many years, regardless of the weather. How should I find such an amazing product, you may ask? Fear not, we got your back!

 

Featured Recommendations

Dicor 501LSW-1img
  • Dicor 501LSW-1
  • 5 out of 5
    Our rating
  • Outstanding Protection
  • Price: See Here
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EternaBond RSW-4-50
  • EternaBond RSW-4-50
  • 4.5 out of 5
    Our rating
  • Versatile
  • Price: See Here
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Geocel GC28100img
  • Geocel GC28100
  • 4.5 out of 5
    Our rating
  • Strong Formula
  • Price: See Here
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We have done thorough market research in order to save you some time and effort while searching for the best sealant. We came out with 10 best RV roof sealants you can find at the moment. They are super-efficient, resistant to many threats, and allow for simple applications. All in all, they are the best and you should be able to find the perfect one to meet your every need. Hopefully, our detailed reviews will help you out during the searching process. Our main goal was to provide everything you need to find and buy a proper RV roof sealant and be fully satisfied with it. If you’re ready, we may start with:

 

10 Best RV Roof Sealants

 

Dicor 501LSW-1

Dicor 501LSW-1
Our number one pick is one of the most popular RV sealants on the market. What makes it so special, you may ask? The product applies to different materials and it’s completely safe for use. Thanks to the high-quality formula, it offers outstanding protection. It works at any weather, preventing leaks and cracks. You can use it for RV roofs, vents pipes, air conditioners, and much more!
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High Level of Protection
This product provides protection from harsh elements that can damage the roof of your RV. It prevents possible leaks during cold days so you can enjoy traveling during winter. Use it to seal your roof and no wind, snow or rain will damage it. Additionally, you can use it to seal vents, air conditioners, and vent pipes. The product works wonders on all kinds of materials. It adheres to mortar, aluminum, vinyl, and much more. This makes it quite versatile, so you’ll find it useful in different situations.

Easy to Use
You don’t have to worry about Dicor damaging the parts of your vehicle. It’s safe for use and it won’t discolor or stain materials. We also find it perfect for protecting the roof against harmful sun. Thanks to the UV-resistant formula, you get to protect your vehicle from cracks. It applies quickly and conveniently. It’s a mess-free product that allows for professional results. You should only keep in mind that this is a self-leveling sealant and it won’t work vertically. This is the only drawback we could find with this product!

Cost and Value
The product comes in white color, in a bottle of 10.3 ounces. You get to save quite some cash and fully protect the roof of your vehicle. All in all, this sealant is a real steal and we recommend it to all RVers out there!
Pros

Outstanding protection against harsh weather

Prevents leaks and cracks

Applies to different materials

Safe and efficient

Easy to use

Competitive price

Cons

Self-leveling so it doesn’t work vertically

EternaBond RSW-4-50

EternaBond RSW-4-50
Sometimes, all that you need to seal the roof is a quality tape! Yes, that’s right, you can use a simple tape to prevent possible leaks and cracks. EternaBond is as efficient as any regular liquid sealant. It applies quickly and stays in its place regardless of the weather. All in all, this is one of the best available options and you should definitely check it out!
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Super Versatile
This tape works on all kinds of materials, including wood, concrete, metals, PVC, and much more. Thanks to the built-in primer it works like a charm regardless of the surface type. Lastly, you get to protect your vehicle from further damage caused by harmful sun rays. The tape comes with UV protection that ensures incredible durability. It’ll last for a decade or two even when it's constantly exposed to the sun!

Simple Installation
The major benefit of using the tape for sealing the roof is an easy installation. You only have to prepare the surface and that’s it! EternaBond is a flexible tape that can stretch up quite some. You’ll install it in a breeze, no special maneuvering is necessary. Measure the length, apply, cut and that’s it! Just make sure to align the tape in a proper way because it sticks to the surface very well. Once you apply it, you’ll have a hard time readjusting it afterward.

Cost and Value
The tape is available in three sizes (2, 4, and 6 inches) so you can choose the one that suits your needs. All of them are 50 feet long which is more than enough for all the repairs you might have to perform. We can’t deny it, EternaBond is very expensive. Still, we find it’s worth every penny! If you have some extra money to spend, we say go for it. You won’t be disappointed!
Pros

Works on a variety of materials

UV and weather protection

Impressive durability

Easy installation

Sticks to the surface almost instantly

Comes in three sizes

Cons

Expensive

Geocel GC28100

Geocel GC28100
Geocel is one of our favorites! It offers a high-quality formula that works wonders on many materials. Thanks to the high-quality formula, this one is perfect for all weather conditions. You can use it in winter to prevent leaks or at summer to protect the roof from sun rays. Either way, this product is everything you need to maintain and protect the roof and other parts of your RV!
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Versatile
Geocel works on all kinds of materials. It seals aluminum, steel, glass, vinyl, wood, and more. This means it’s perfect for RVs, campers, and trailers. It bonds with all kinds of surfaces, allowing for quick and simple seals. Even more, it sticks to the surface to prevent leaks.

The sealant is perfect for winter but it also works in hot summer days. You can even apply it to wet and oily surfaces, it’ll work like a charm!

Strong and Durable Formula
This one is very easy to use. It bonds to the surface immediately, no special maintenance is required. You don’t have to wait to drive your vehicle either. The thing we liked the most is a durable formula that ensures over 25 years of use! It’s resistant to cracks, UV, mildew, and much more.

Still, the sealant is easy to clean up so you won’t make a big mess when using it. You should only protect yourself during the use. Wear some gloves to protect your skin because you won’t be able to take it off!

Cost and Value
We only wish for this product to come in a bigger-sized bottle. This way, you get a bottle of 10 ounces. Still, it’s reasonably priced and offers outstanding protection for your vehicle. It provides such a great value that you won’t regret buying it, not even for a second!
Pros

Works on aluminum, steel, glass, vinyl, wood, and more

Quick and simple seals

Perfect for any weather

Easy to use

Strong and durable formula

Best value for the money

Cons

Requires extra protection during the use

Dicor BT-1834-1

Dicor BT-1834-1
Here we have another amazing tape that works as a roof sealant. It installs quickly, seals tightly, and lasts for quite a while. This company doesn’t disappoint! All their sealants prove to very efficient and versatile. If you’re eager to find out more about this great tape, keep reading our in-depth review.
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Weather Protection
This one works wonders on all kinds of surfaces. It prevents leaks and protects the roof from moisture, water, sun, and other threats. Also, you can use it around vents, air conditioners, vent pipes, and much more. Thanks to the high-quality formula, the tape will stay in its place regardless of the weather. It’s very strong and durable!

Easy to Use
The tape is available in three sizes so you can pick the one that suits you the most. You should only keep in mind one possible issue. Some buyers complained about the tape being too narrow. You might have to apply two layers depending on the surface you’ll be sealing. That being said, the installation is very simple so you’ll get the work done in a breeze. It dries quickly so you can use the vehicle within a few moments.

Cost and Value
This tape is cost-effective which makes it perfect for those who are on a limited budget! We highly recommend it to all RVers out there. It's so efficient and durable that you won't ever regret buying it!
Pros

Works on many surfaces

Versatile

High level of protection

Easy to use

Available in three sizes

Cost-effective

Cons

Might be too narrow for some applications

Sashco

Sashco
This is a regular sealant that works efficiently and applies on many surfaces. You can use it to prevent leaks, cracks, and other possible damages. The sealant is easy to use and very well-made. It’s perfect for small and simple repairs around your RV!
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Outstanding Protection
This one is suitable for all kinds of surfaces. It provides outstanding protection from weather threats. Thanks to the high-quality formula, the roof will be protected from all leaks and cracks. The liquid adheres to the surface tightly in order to prevent water to reach to the surface.

Also, the formula is very strong and durable. This means that the sealant provides extraordinary protection for many years!

Efficient
We already mentioned how versatile this sealant is. Now, the best part is the easy installation. The product applies and dries quickly. It works on metal, plastic, wood, concrete, and much more. You can even apply it to the wet surface! What we liked the most is a clear formula. The sealant is transparent and doesn’t turn yellow over time. You can even paint it if you want to match the color with your RV.

Cost and Value
This sealant will cost you a pretty penny, that’s for sure. This is our major gripe with the product. It does come in a pack of 12 to save you some money, but it’s still quite pricey. Those who are on a tight budget will have to search for other options.
Pros

Outstanding protection from weather threats

High-quality formula

Strong and durable

Versatile

Works on different surfaces

Transparent

Cons

Expensive

Beech Lane

Beech Lane
If you prefer to get a quality tape for sealing the roof, you can’t go wrong with Beech Lane! This is another first-class tape that can be used for many purposes. It offers a tight seal so that water can’t damage the parts of your vehicle. Not to mention easy-to-use formula that ensures a long lifespan. All in all, this product is well worth your attention and you shouldn’t miss checking it out!
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Waterproof
This is a waterproof tape that allows for a tight seal to prevent possible leaks. It applies on all kind of surfaces, including PVC, EPDM, metals, wood, and more. The sticky formula offers super tight seal, so nothing can damage the roof. This also makes it quite durable. Just be aware that it doesn’t work on silicone.

Flexible
The tape sticks very well to any surface and it’s quite flexible. It applies in a breeze, you should only make sure to do it in a proper way. We recommend using it on 75 to 80 degrees. When it’s too hot the tape becomes too sticky. On the other hand, when it gets cooler it’s difficult to stick it to the surface. Also, don’t forget to clean the surface before you apply the tape.

The formula is super strong and durable. The manufacturer even claims that it lasts for more than 20 years! We don’t know if this is true, but Beech Lane is definitely one of the toughest sealants we have seen. It should last for many years, regardless of the constant exposure to the outside threats.

Cost and Value
Beech Lane is not the cheapest option out there, we give you that, but it won’t break the bank. Especially considering the fact that it comes in a jumbo size roll. This should be more than enough for all kinds of seals and repairs. All in all, if you prefer the tape rather than the regular sealant, Beech Lane may be the right choice for you!
Pros

Waterproof

Applies on different surfaces

Strong, flexible, and durable

Easy to use

Comes in a jumbo size roll

Outstanding value for the money

Cons

Doesn’t work on silicone

Needs to be applied at a certain temperature range

XFasten

XFasten
If you want to avoid making a huge mess while sealing the roof on your RV, we have a perfect product for you! We are talking about a multipurpose tape that can be applied to many surfaces. You can use it to protect your vehicle, vents, air conditioners, and other vehicles and devices. We highly recommend it to every RVer out there!
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Multipurpose
This is a multipurpose sealant that works wonders on all kinds of surfaces! You can use it on materials such as plastic, wood, aluminum, glass, and much more. It offers a corrosion-resistant formula which we find very useful. Not to mention the protection against moisture, mildew, sun, chemicals, and more. The tape is quite durable so you won’t need to apply it every once and then. With one simple seal, you get to repair and prevent all the damage! Also, this product should work at any temperature. However, some people complained about it not working at too low or high temperatures. Keep this in mind before the purchase!

Mess-Free
As we mentioned above, this is a mess-free product that allows for a simple application. The tape is elastic enough to be easy to use yet not too sticky and flexible. It applies in a breeze and stays in its place regardless of the outside conditions. With XFasten, you get to achieve a professional finish and be proud of your work!

Cost and Value
On top of all, this sealant comes at a competitive price. It’s perfect for those who are on a limited budget yet need more protection for their RVs. XFasten works efficiently and quickly, and you’re going to love it!
Pros

Multipurpose product

Works on different surfaces

Corrosion-resistant and protection against weather threats

Durable and efficient

Easy to use

Competitive price

Cons

Doesn't install on all surfaces

Cofair UBE425

Cofair UBE425
If you need something to permanently seal your roof, this is an excellent option for you! Cofair features a tape that works wonders on all kinds of materials. It seals leaks, prevents cracks, and lasts for quite a while. Who could possibly ask for more?
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High-Quality Formula
This sealant works on many different materials, including EPDM, TPO, metal, PVC, wood, glass, and more. Thanks to the high-quality formula, it ensures great protection and a long lifespan. It won’t crack, leak, or deteriorate regardless of the weather. This makes it perfect for RV roofs that are exposed to harsh elements. You’ll find it super efficient for sealing venting systems, air conditioners, and more.

Simple Installation
The tape comes in white color to complement your RV exterior. It installs in a breeze, you only need to prepare the surface you’ll be sealing. Make sure to clean it well before you apply the tape. Also, we liked the fact that the sealant sticks to the surface almost instantly. It adheres to the surface and stays that way!

However, once it bonds you won’t be able to reposition it. Due to strong formula, you’ll only manage to damage the surface. Keep this in mind and make sure to apply it in a proper way.

Cost and Value
The product is available in several different sizes so you can pick the one that works the best for you. It’s not the cheapest tape on the market, but it won’t cost you a fortune. If you have a few more bucks to spend on your new sealant, we highly recommend this versatile tape!
Pros

Works on a variety of materials

High-quality formula

Durable and resistant to harsh weather

Installs in a breeze

Sticks to the surface almost instantly

Available in different sizes

Cons

Once applied it doesn’t allow for further adjustments

Pricey

ToughGrade

ToughGrade
Here we have another heavy-duty product that’s perfect for sealing big leaks and cracks on your RV. It provides outstanding protection from weather elements and installs in a breeze. You can apply it to any material and seal different surfaces. ToughGrade is one of the toughest sealants and you’re going to love it!
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Versatile and Efficient
ToughGrade works not only for RV parts but also for vent pipes, air conditioners, and much more. It provides UV protection and prevents discoloration and deterioration. Of course, thanks to the tight fit, no leaks will ever occur with ToughGrade. The sealant is perfect for materials such as aluminum, wood, glass, metal, concrete, and more. This makes it super useful and you’ll enjoy its efficiency no matter where you use it!

Self-Leveling
The sealant is super easy to apply on any surface. You should only protect yourself during the use. Put some gloves on and make sure not to expose your skin to the liquid. Also, pay some extra attention not to breathe in the strong fumes. The product could cause skin and nose irritation.

This is a self-leveling sealant that works best when applied to horizontal surfaces. The formula is very strong so the sealant will stay in its place regardless of the outside threats. It ensures a long lifespan and your RV roof will be fully protected for many years!

Cost and Value
ToughGrade is really hard to beat for the price! It comes at an attractive price in a pack of 4 bottles. This should be more than enough for all seals you might have to perform on your RV. All in all, we recommend this product to all those who want more protection for their RV. ToughGrade is just a perfect option for every RVer!
Pros

Different applications

UV protection

Works on a variety of materials

Efficient and durable

Easy to use

An attractive price

Cons

Once applied, hard to readjust

Could cause skin irritation

Kool Seal KST063600-16

Kool Seal KST063600-16
Last but not least, we have a heavy-duty roof coating that protects the roof for all kinds of threats. It works on any temperature and applies in a breeze. You’ll find it super useful and efficient. With a high-quality formula, the sealant offers a high level of protection for many years!
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Great Weather Protection
This is a roof coating designed to withstand harsh weather conditions. It protects the vehicle from water, moisture, mildew, and more. Of course, with this product, no leaks will ever occur! It also provides protection from harmful sun rays. Most buyers praise its strong structure and efficiency. Without a doubt, you’ll find it quite useful for all kinds of applications!

Easy to Apply
The coating is very easy to apply, you’ll only need to prepare the surface before the installation. Although it sticks to the surface very well, you won’t have any issues cleaning it up. Yet, due to the heavy-duty formula, you can apply it wherever and whenever you want.

Cost and Value
We only wished for this product to be better priced. It won’t cost you a fortune, but you’ll have to spend a few more bucks on it. Still, we highly recommend it to every RVer out there!
Pros

Withstands harsh weather conditions

Protection from water, moisture, mildew, sun, and more

A strong and efficient formula

Easy to apply

Sticks to the surface regardless of the temperature

Easy to clean up

Cons

Expensive

 

Criteria Used in Evaluation of the Best RV Roof Sealants

 

Ranking our 10 best picks was a rather challenging task! As we chose only the best products on the market, we had a hard time evaluating them. They all offer outstanding quality and protection. We felt like nitpicking all the time! In order to perform the task properly, we applied strict criteria to all of them. Here are some of the most important things that influenced our decisions:

Protection

First and foremost, we had to make sure that every RV roof sealant on our list provides enough protection. This means that it has to offer a tight seal to protect the surface against harsh outside elements. What is the purpose of a sealant if it can’t protect the roof against possible threats? We need it to be weather- and sun-resistant in order to prevent leaks and cracks. Truth to be told, as we picked only the best products on the market, this wasn’t a difficult task. All our picks offer outstanding protection and seal the roof in a proper way. Still, differences between them do exist so we ranked them accordingly. The best-performing RV roof coatings and sealants are at the top of the list, of course!

Quality Formula

The second most important thing was to determine how well-made is every product on the list. The quality formula allows for more protection and a longer lifespan. Every RV roof sealant that has a strong formula sticks to the surface regardless of the weather. It also allows for easy application, so you get why this was so important for the evaluation. Quality formula means quality sealant!

Versatility

Although we looked for the best RV roof sealants, we assigned some extra points to all products that can be used for different purposes. It’s always a plus when you can use the roof sealant for sealing air conditioners, vent systems, and more. Who wouldn’t like to have a versatile product that seals different surfaces? Therefore, the most versatile sealants are at the top of our list!

Installation

Of course, the best sealants have to be easy to use. They should provide a simple application for mess-free use and perfect results. You don’t want to have a messy roof, right? Regardless of the type, the sealant should stick to the surface at any temperature. We also favored those products that can be applied to both dry and wet surfaces. This way, you don’t have to bother with using them at a certain time and proper conditions.

Cost and Value

Lastly, we had to make sure that you’ll get what you paid for! Although these products are not too expensive, some of them could require some extra cash. Either way, we had to rank the products according to the value they provide for the money. We also prepared some extra tips along with every sealant. Hopefully, this will help you find the product that meets your budget limitations!

 

Other Factors to Consider

 

We know you have laid eye on a certain product and you’re impatient to try it out. Still, don’t rush into the purchase! There are several things you might want to consider before you make up your mind. They could influence your final decision and it takes only a few moments to read them all. We prepared some questions you could answer and make sure you’ll get exactly what you need! Here we go:

What kind of protection do I need?

The best roof sealants should offer protection against all kinds of threats. They should prevent leaks and protect your roof from moisture, mildew, sun, and much more. Still, some products are designed to provide more protection from one particular threat. Therefore, you should consider the threat you’ll be protecting the surface from. Also, consider which damage you’ll be repairing. Are you going to cover the sun cracks or you’re about the seal the water leaks? This could help you decide on a particular type of sealant.

Which type do I prefer?

This one depends on your personal preferences. Both the regular sealant and the tape type can be efficient in sealing the roof. The tape is sometimes easier to apply and it’s mess-free. Of course, this applies to some regular sealants as well. The liquid ones give more accuracy as you get to apply them over and over again to avoid possible mistakes. The tape is harder to adjust once applied. They all have their pros and cons. All in all, you can’t go wrong no matter which type you choose. You should only consider the type of surface where you’ll be applying the sealant. This will help you choose the perfect product for your needs!

Do I need it for other applications as well?

If you need a sealant for different applications, you should aim for the most versatile one out there. Consider the surface you’ll be applying the sealant on and then opt for a particular product. They are not equally versatile and won’t work on all surfaces. Also, if you need it for silicone, double-check the product’s description. Even the best roof sealants could be incompatible with silicone!

What is my budget?

Of course, your budget limitations will also influence the final decision. If you can do it, we recommend adding a few more bucks on your regular budget to get the best product you can. This is a safety product that should keep your roof in perfect condition for quite a while. You don’t want to get just any kind of sealant! Still, if you’re on a tight budget, don’t despair. There are some amazing budget-friendly products that offer outstanding performance. Some of them even made it to the top of our list!

 

FAQ

Frequently Asked Questions

 

Q: Does RV cover protect roof and sealants?

A: Yes, an RV cover does a great job in protecting the roof of your vehicle as well as an applied sealant. Using a cover is an extra safety step you can take to ensure a longer lifespan of your vehicle. There are some amazing RV covers that offer outstanding protection. They can protect your vehicle from all kinds of outside threats. They are weather-resistant and suitable for different situations. We highly recommend using a cover whenever you can!

Q: How to apply an RV roof sealant?

A: The process is rather simple. In most cases, you only need to clean the surface and let it dry before you apply the sealant. Now, the task could be easy or more difficult depending on the type of sealant. Some of them are easy to use while others require some extra effort. People mostly opt for tapes because they offer a mess-free application. Still, you can find liquid ones that are super easy to use. Check the product’s description and other buyers’ reviews before the purchase. You can follow our list as well! We provided extra information about the appliance of each one of our picks.

Q: Is it hard to remove it?

A: Well, it shouldn’t be too hard to remove the sealant. However, every product is different and some of them might require extra effort. Every product will come with the manual so you’ll get detailed instructions on how to remove it.

Q: Can tape be used as a roof sealant?

A: Absolutely! You should only make sure to get the tape that is meant to be used for this purpose. You can’t use just any type of tape! There are some amazing tape sealants that work wonders on sealing the roof. If you want to find more about them, you can scroll up to our list. We included some extraordinary tapes!

Sources

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