LAST UPDATED: January 15, 2019

The Best RV Roof Sealants and Coatings (Review) in 2021

Best Choice eternabond rsw-4-50 rv roof sealant EternaBond RSW-4-50 RV Roof Sealant Tape
Premium Pick Liquid Roof RV Roof Coating Liquid Roof RV Roof Coating
Best Value Dicor 501LSW-1 RV Roof Sealant Dicor 501LSW-1 RV Roof Sealant

Performing maintenance on your RV’s roof can be quite an onerous task so it’s important to find a roof sealant to fix up any cracks that you may find on top of your vehicle. Here is a list of the top products that can protect your roof against further damage and therefore prevent any damage to the inside of your vehicle. This can often be the result of too much sun or water leaking in from outside.

The Best RV Roof Sealant and Coating

This is our pick as the best RV roof sealant available on the market. As it is white, it is fantastic for being used in sunny climates and owing to be a tape. The backing contains a UV coating to help the tape last a long time despite constant exposure to UV rays. It’s incredibly easy to apply on RV roofs that need resealing for protection against the elements. It only requires the RV owner to do a small amount of surface preparation for a fiberglass roof to be suitable for the application. Each roll of tape is 50 feet in length and 2, 4, 0r 6 inches wide. This means you can cover just over 8 square feet with the skinniest roll and up to 25 square feet with the widest roll.

Key Features
  • Comes in a variety of amounts and sizes
  • Allows for heat expansion and contraction
  • White color finish to help reflect sunlight
  • Brand EternaBond
  • Model RSW-4-50
  • Weight 3.5 pounds

Dicor Sealants are known to be great quality, especially for use as an epdm rubber sealer. What we love about this Dicor lap sealant is the fact that it will create a watertight seal along a roof’s edge and even around air vents, or vent pipes or other fiddly parts like air conditioners and screw heads. Additionally, this product is perfect for use on EPDM sheeting so that can also adhere to aluminum, mortar, wood, vinyl, or fiberglass roof. You can even use it on galvanized metal and concrete.

Key Features
  • Comes in a 10.3 oz tube
  • White finish
  • Compatible with EPDM sheeting
  • Brand Dicor
  • Model 501LSW-1
  • Weight 12.2 ounces

Heng’s Rubber Roof Coating is the literal physical being of liquid roof rubber product. It makes for a great rubber roof sealant or mobile home roof coating if you need to seal up parts of your roof against the elements. It is easy to use and can be applied to rubber roofs, at the seams, and around any air vents that need patching up. It is resistant to cracking so is long lasting in addition to protecting an RV roof against impacts. It is safe to use as a liquid roof rubber coating as it has a low impact on the environment. It’s non-toxic and non-polluting.

Key Features
  • UV resistant
  • Expands and contracts with roofs heating up and cooling down
  • Can buy per gallon or set of six gallons
  • Brand Heng's
  • Model TG-976
  • Weight 5 pounds

For those that find using a rubber roof sealant that comes in the form of caulking gun difficult, this is the liquid epdm rubber coating for you. It can be applied like paint all over your RV’s roof and can protect a roof against the elements for up to five years. It has a white finish for the ultimate way to deflect the sunlight, but it can also be painted on in just one single coat. Users of this product like that it is a form of liquid EPDM which is often touted as the best type of camper roof coating out there. You can coat 42 square feet per gallon.

Key Features
  • EPDM rubber
  • Able to be applied like paint
  • Protects for up to five years
  • Brand Proguard
  • Model F99911
  • Weight 10 pounds

Beech Lane is a reputable provider of RV accessories and this RV rubber roof sealant is an excellent example of its high quality products. Tapes are perhaps one of the easiest forms of roof sealing products to apply and the easy pull strips on this one from Beech Lane are easier still. Plus, it can protect against all weather, be it rain, wind, or shine. The seal that the tape makes with a variety of different types of roofs is watertight. No water can leak in through any holes in the roof or around areas of weakness like air conditioning vents.

Key Features
  • Can last for a 20 years
  • Easy to apply
  • White finish to help deflect sunlight
  • Brand Beech Lane
  • Model 4336329647
  • Weight 5 pounds

Geocel is a much liked brand for those in the market for sealing RV roofs or as a camper roof coating. The reason that this product has made it on to our list is that we like how longlasting it is (the manufacturer claims it will last 25 years) and the fact that it is a clear sealant that is suitable for painting should an owner require it. Plus, you can use it on a wide variety of surfaces and use it to seal damp, frozen, and oily surfaces.

Key Features
  • Flexible to improve usage and durability
  • Crack resistant
  • Can be used on numerous types of surface
  • Don’t need to clean to apply
  • Brand Geocel
  • Model GC28100
  • Weight 14.4 ounces

EternaBond have answered a problem by making a product that is economically friendly to an RV owner’s wallet. Plus, it is excellent at what it does making it a great choice as a roof sealing product. It is easy to install even though the tape is so thick. It is perfect for use around sunroofs and air conditioning vents to add strength to weak points in an RV’s structure.

Key Features
  • Large roll for increased economy
  • Won’t stick to silicone caulk
  • Excellent for preventing water leaks
  • Brand EternaBond
  • Model FBA_VBC-1222
  • Weight 1.46 pounds

This acrylic rubber roofing coating system from Dicor has a white finish so will help to eliminate the sun’s harmful rays from causing deterioration to your RV roof. It is an excellent choice for those wanting to carry out a camper roof coating or a camper roof repair as it flexees well and eliminates any roof rumble. The formulation also means that RV owners will have to perform less lifetime maintenance.

Key Features
  • Flexes well
  • Comes in a white finish
  • Each can contains a gallon of the liquid rubber
  • Brand Dicor
  • Model RPCRC1
  • Weight 12 pounds

As this product from ToughGrade is self leveling, it is very easy to apply and perfect for those that find DIY projects tricky. It is great for use on rubber roofs that need cracks sealed. You should use it on a horizontal surface, though. The formula has also been designed to be resistant to UV rays to prevent further sun damage.

Key Features
  • Easy to apply
  • UV stabilized
  • Comes in a pack of four
  • Brand ToughGrade
  • Model 502-LSW
  • Weight 5.1 pounds

KoolSeal have produced a liquid rubber that can be applied like paint and will stick to most surfaces. It renews most roofing substrates and can help protect against the sun and heat owing to being formulated to be resistant to UV rays. Additionally, it can help protect against other weathers like the wind, but is particularly useful at protecting against leaks due to being resistant to water or moisture.

Key Features
  • Comes in a white finish
  • Can be used to absorb sound
  • Helps protect against all moisture
  • Brand Kool Seal by Standard Plumbing Supply
  • Model KST063600-16
  • Weight 7.2 pounds

For those that like Liquid Roof’s RV roof coating, this is a good option as the huge size of the carton makes it very economical for its price. At four gallons, this product will easily cover the top of RV roofs. Plus the product inside is high quality. It has a white finish which is perfect for deflecting sunlight and will also create a watertight seal upon impact. This tub of liquid rubber will last for years. To apply this coating you’ll need to clean the top of your camper, then apply an even coat of product. When you follow the direction for this liquid rubber coating system, it’ll protect your vehicle from sun and rain for a long time.

Key Features
  • Perfect for those that have large areas to cover
  • Economical sized carton
  • Creates water tight seal on impact
  • Brand Liquid Roof
  • Model F9991-4
  • Weight 40 pounds

This is an incredibly capable acrylic RV coating that will be perfect for camper roof repair or for a mobile home roof coating. It cures so that the final product has high elasticity and expands up to 4 times its original size. It protects against cracking while preventing damage to a roof. It will really help keep an RV cool by deflecting almost all of the sun’s heat rays through its tough membrane. The product comes in a nine gallon container. The application of this coating is easy thanks to the included agents that prime and clean in a single coat. The final product is a watertight membrane that repels rain for up to five years.

Key Features
  • Bright white finish
  • Can expand up to four times
  • Acrylic RV sealant
  • Brand Snow Roof
  • Model MC-1
  • Weight 9.86 pounds

This product is perfect to buy if you want to do an entire liquid roof coating to protect your camper against the elements for any long journeys. It will prevent damage from UV rays through its solar reflective finish, which will also keep those on the inside cooler too. Plus, the formulation is environmentally friendly and easy to apply. This gallon of white liquid roof coating is the second step in Dicor’s system. This means you’ll need at least two coats to the top of your camper for full protection.

Key Features
  • Flexes and eliminates roof rumble
  • Eco friendly
  • UV ray resistant
  • Brand Liquid Rubber USA
  • Model 24101
  • Weight 44 pounds

This product from DEHCO has a white finish, is UV resistant, and friendly to the environment. The manufacturer has taken great pains to find a liquid rubber roof coating that can seal while also resisting cracks and any impacts while also never polluting the environment or being toxic to those that are using it. It can be used on the top of your camper to help repair any wear and tear.

Key Features
  • Can expand and contract in the heat
  • Very durable
  • Resistant to cracking and impacts
  • Brand DEHCO
  • Model 16-46128-4
  • Weight 12.05 pounds

The last roof coating on our list is a product from KST coatings and is another huge 4.75 gallon container that’s economical for users who want to paint their entire roof. This product in particular is very efficient at protecting against moisture, which makes it perfect for those struggling with mildew and algae. Once cured, this product forms a thick rubber-like coating that protects against rain, keeps your roof clean, and reflects 90% of the sun’s rays. It is a quality product that any owner would be happy to use.

Key Features
  • Large, economical can size
  • Will help absorb sound
  • Perfect to use in both cold and hot temperatures
  • Brand Kst Coatings
  • Model KST063600-20
  • Weight 54 pounds

Best RV Roof Sealant Buying Guide

Things to Consider When Buying an RV Roof Sealant

There are a number of things to consider when you buy  roof sealant. First, you need to look at the size of your RV roof repairs. This will help you choose between paint, caulk gun, and tape. It will also help you to calculate how much to buy. Also, bear in mind how good you are at applying these types of products. If you find caulk guns awkward, it’s probably best to use a different type. Lastly, look at the length of time you have to finish your RV roof repair. Some products are quicker than others due to more straightforward application or lack of preparation needed.

RV Travel 3

Benefits of Using RV Roof Sealants

There are many benefits to using roof sealants which make them well worth looking into to completing on your RV. They include:

1. Temperature Regulation

Keeping your RV cool is useful, not only in Summer but all year round. An RV sealant can really help with that plus, by not having to use your air conditioning all the time, it will save you a lot in power too. With a mobile home roof coating, the inner temperature of an RV remains far more level and consistent. The result is that owners don’t have to switch on the air con all the time and have it constantly cycling round and round. This is purely due to the better insulation that an RV roof sealant coating can produce.

2. Lowering the amount of energy used

Any RV owner knows how great recreational vehicles can be, but they also are acutely aware of the amount of energy that they use on even the shortest of journeys. Roof coatings can materially help reduce the amount of energy consumption an RV goes through. This not only helps to reduce the running costs of your RV, but it also is far better for the environment due to the reduced amount of emissions created. Again, this is down to the much improved insulation of the vehicle.

3. Reducing your roof’s wear and tear

Perhaps one of the best benefits of adding a liquid rubber roof coating to the top of your camper is that you can help your RV’s roof have a far longer shelf life. This is particularly true of an RV sealant that has a cooling effect too. This characteristic can help deflect sunlight and other weather elements so that your RV has a great deal less wear and tear on it as time goes on.

4. Protecting your RV’s structure

The best type of liquid rubber roof coating will help extend your RV’s shelf life by protecting the structure. By protecting your roof from the elements, a rubber roof sealant can stop water and heat from destroying certain parts of your roof through general wear and tear and the growth of mold or other nasties. Heat, in particular, can cause the metal structure of your RV to continually contract and expand depending on the weather, so a protective rubber roofing can reduce this from happening.

5. It makes for a more comfortable ride

The use of a rubber roof repair product can seal holes in your roof and stop water from coming into your RV. You’ll give yourself a far more comfortable ride. You are also helping keep the interior of your RV at a far more consistent temperature owing to that all important improved insulation. Both of these add up to a far more comfortable ride and a happier RV user. This is true in both cold and hot weather as the rubber roofing that you have installed is able to protect your RV against both types of temperature.

6. Reducing the amount it costs to run an RV

Running an RV, as previously mentioned, is not always the cheapest activity. However, by being conscientious about roof maintenance and repair, you will find that your overall maintenance costs start to decrease. This is due to all that extra protection that you have added to your RV that will mean you have far fewer repairs to take care of elsewhere, in addition to lowering those running costs.

Recreational vehicle

Types Of RV Roof Coatings

There are a number of roof coatings or camper roof products that may suit your needs better than others. You’ll need to think about the type, size, and location of your RV before deciding which is best for you.

  • Acrylic RV Roof Coatings

Acrylic RV coatings are a good option if you need a slightly cheaper solution to act as a stop-gap in between when you have the time and the money to spend on a full-on RV roof repair. That being said, they’ll still manage to reflect a high amount of damaging sunlight and offer excellent protection against rain, water damage, and leaks. They are fairly UV resistant forms of RV roof coatings too. Where they lack is that an acrylic roof sealant is not great against pounding water, which may not even be an issue for some RV owners anyway. Acrylic roof coatings do not last quite as long as other RV sealant types and also require a couple of coats, a primer, and fabric reinforcer. This is obviously an extra cost and more time-consuming.

  • Urethane RV Roof Coating

This type of RV roof coating is more expensive than acrylic, though slightly cheaper than other types mentioned on this list. Urethane used for a mobile home roof coating is also more durable than acrylic and other types, plus are great to protect against impacts like falling branches and other small debris. If you take your car around built up areas or within areas with lots of traffic, a urethane RV roof coating is a good idea. Obviously, however, you have to weigh up whether the added cost of using a Urethane RV roof coating is worthwhile for you. Plus, other negative points include a strong, pungent smell during application as well as the fact that this type of RV sealant needs two coats thus increasing the amount of time required to apply it.

  • Silicone RV Roof Coating

Silicone is the last type of RV roof coating. It is the most expensive of all types of roof repair, but it is often bought simply because the benefits can outweigh the costs. It only requires a single coating and doesn’t require you to clean and apply a primer. Sometimes the cost of applying it to the roof can be cheaper. It is such an effective RV roof sealant or RV roof coating because it is highly resistant to weather, wind, and rain degradation. Additionally, it is good at deflecting against the harm of pounding water plus it can stay extremely elastic over time. It won’t become brittle or crack nearly as easily as other forms of RV coating products. One downside to silicone coatings is that it gets dirty far more easily than with other types of RV roof sealants. Regular washes will make light work of this dirt, however. Silicone also can only be applied to another silicone product so once it has been applied, it can only be repaired with other silicone RV sealant products.

The Best RV Roof Sealant and Coating FAQ:

Q: What actually is RV roof sealant and how does it work?

A: A roof sealant can take the guise of a tape or a mix between a paint and a varnish coating. It works by making RVs waterproof by sealing up cracks and holes that may be forming on roofs or around air vents or air conditioning units. They adhere to an RV’s surface to create a solid coating and make it strong again. Plus, many products are formulated to protect against any further damage being caused to your vehicle by being resistant to impacts, UV rays, the sun, water, and wind. All these environmental elements can play havoc with your RV, so it’s a great idea to use a coating of RV sealant as soon as you see a crack or hole forming.

camping car

Q: How do I apply RV roof coating?

A: Applying an RV roof coating is far easier than many may originally think. Plus, the key applying any type of liquid rubber roof coating is in the preparation. You need to ensure that you clean the surface thoroughly before any new rubber roof sealant can be applied. Some RV sealant producers, like a Dicor lap sealant, may even provide a specialized RV roof cleaner to help in this step. Following cleaning the surface, it is best to also apply some denatured alcohol with a soft cloth.

One more step prior to applying a new RV rubber roof coating is to remove any old sealant that has come away from the roof of the RV.

From there, apply your chosen RV roof coating product with a caulking gun by running a bead of caulk over the part of the RV roof you need to repair. That’s all there is to it. If you are trying to repair a crack, you need far less RV sealant products than if you plan to coat the entire roof.  Start with less at first as you can always apply more.

Q: How many coats do I need for an RV roof repair?

A: As briefly mentioned in listing the types of camper roof sealant above, the amount of coats that you need for an RV roof repair depends on the type of RV roof sealant that you use. Urethane and acrylic forms of RV sealant will need at least a couple of coats in addition to a primer.  Any camper roof coating that you apply which is silicone based only ever needs a single coat and no primer.

If using a urethane RV roof coating or an acrylic RV roof sealant, remember it is better to apply to thinner coats of the product than it is to apply one thick coat of the product. That way your RV will reap all the benefits that an RV roof repair can provide your vehicle with.

Q: What are good roof sealant brands?

A: We rate brands such as EternaBond and Dicor. They have been known to produce highly capable RV sealants that will last for years after being applied to any surface or RV roof. Additionally, we also like Geocel, Heng’s and Beech Lane. They all produce various forms of liquid rubber or other types of camper roof sealant products that can be used to perform an RV roof repair. Some RV users prefer to use tape like products on their vehicles while others prefer products that are more like paint. All manufacturers mentioned here produce a version of these products that are suitable for use on an RV that will more than amply perform an excellent RV roof repair.

Our Top Pick

We rate this tape by EternaBond for use as an RV roof sealant for several reasons. Firstly, it is not only easy to install, it also requires the RV roof to have very minimal work done to it in terms of preparation so that the sealant tape can be applied. It will act as the perfect RV roof repair especially as it comes in a variety of sizes as well as lengths depending on the size of the repair you need to conduct.

EternaBond’s roof sealant coating won’t disappoint a novice RV owner or even an expert one. It’s inexpensive and works perfectly to protect against the elements.