Sealing your RV roof is one of the most important parts of maintaining your rig and preventing water damage.
However, it's not easy to do and not something you wanna do all the time. In fact, the less the better.
If you buy a quality sealant you won't have to do it as often. So we found the best RV roof coating and best RV sealants on the market.
Let's dive in!
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Best RV Roof Coating & Sealants of 2021
While there are many roof coating and sealant products on offer, there are a few options that stand out. Below are the three best RV roof coating & sealants of 2021.
Heng’s Rubber Roof Coating
If you’re an RV owner looking for an excellent roof coating product, you can’t go wrong with Heng’s Rubber Roof Coating. One of the main reasons it’s become the go-to roof coating for most RV owners is its high-quality formula.
- Easy to work with
- Non-toxic, non-polluting
- Perfect if you want to seal up tears and cracks
- Stands up well to UV rays
- Can expand and contract in the heat
- Ensures your RV’s roof integrity is never compromised
- Isn’t as durable as other product options
- Needs re-coating after every few years
Dicor EPDM Self-Leveling Sealant
This RV roof sealant is perfect for fixing cracks, sealing vents, and covering screw heads and is one of the best selling products.
- very easy to use
- works well with most RV roof surfaces, including TPO and EPDM sheeting
- have to buy several of them if you intend to seal your entire RV roof as it comes in quite a small tube
Flex Seal Liquid Rubber in a Can
This product’s strength is its versatility. It enables you to not only seal your RV’s roof but other areas around your motor home as well.
- stands up to UV rays, chemicals, corrosion, and rust
- easy to apply
- need to apply at least three coats for the product to be fully effective
Types of RV Roof Sealant & Coating
For you to enjoy these and more benefits, it is essential to get the right coating for your RV’s roof. One way to ensure you do that is by familiarizing yourself with the several different roof sealants and camper roof coatings available on the market.
Below are some of the different types that you can get.
This type of coating is suitable for off-road use, offering adequate protection against impact from small debris like falling branches. It also has good UV-resistance and prevents water from pooling on your roof. The coating is reflective and more durable than some of the other coating options.
One downside, however, is its high price. Additionally, it needs a minimum of two coats to work effectively and often gives off a strong, unwanted smell during installation.
An acrylic coating is perfect if you are looking for a reliable coating on a limited budget. It provides decent performance, leak protection, and reflectivity. The coating is also resistant to UV rays.
Some of the drawbacks of this coating, however, include its limited durability. Its ineffectiveness at handling ponding water could also cause the coating to peel or degrade, eventually leading to leaks. You will also need to apply two coats for it to be fully effective.
Though silicone coating is slightly more expensive, its numerous benefits make the initial investment worth it. Unlike an acrylic coating, silicone only needs one coat, which could reduce your roof coating project’s overall cost.
A silicone coating is also highly durable, resistant to ponding water and weather damage, and has high reflectivity. It can stay elastic for long periods, becoming neither too brittle nor too hard quickly.
One drawback of this coating type is that it tends to get dirty quickly, though occasionally washing your rig will resolve such issues.
Best RV Roof Sealant Brands
Depending on the type of coating and sealant you are looking to get, there are a few go-to brands amongst RV owners, including Dicor Products and Liquid Rubber. Here are some more details about each one.
Dicor Products has been operating for close to 40 years, not only making sealants and coatings but making everything you will ever need to maintain your RV as well. On top of that, the company is continuously improving its products.
When it comes to RV roof coatings and sealants, some of the company’s best selling products include the Rubber Roof Acrylic Coating and the EPDM Self-Leveling Lap Sealant.
This Canadian company makes several different RV coating and sealant options, with its most popular product being its liquid roof coating formula.
The company manufactures high standard products, ensuring that all its customers get quality products, including the Brilliant White RV Roof Coating and Sealant.
Camper Roof Sealant & Coating Pricing
Different factors determine the pricing of a coating or sealant product. These factors range from the type of sealant and coating you want to the product’s packaging size. Other product features that dictate price include the product’s formula, durability, water repellency, UV resistance, and ease of application.
When trying to determine which product to go for, it all comes down to your needs. However, one key consideration you will have to make when shopping for your desired sealant and coating product is its quality.
You could get the most basic products for under $15, with high-end options often costing you more than $40. You also have the option of going for a mid-range choice whose pricing falls typically between the $15 and $40 margin.
Expect to pay more if you intend to hire a professional to apply the coating for you. Most professional RV dealerships charge between $1,500 and $2,000 for the total sealing of your RV’s roof. The difference in pricing depends on the type of sealant you are using and your RV’s roof condition.
Such prices can, understandably, be on the high side for some RV owners, with many of them opting to purchase and apply the sealant and coating themselves.
In-Depth RV Roof Sealant & Coating Reviews
Let’s have a look at seven of the best RV roof coating and sealants currently available on the market today.
Heng’s Rubber Roof Coating
Heng’s Rubber Roof Coating is among the best coating products for campers fitted with rubber roofs. The product is perfect for sealing cracks and tears and waterproofing vents and air conditioners.
It has a UV-resistant formula that allows it to withstand squelching summer sun rays without developing cracks or bubbles. The product is non-toxic and non-polluting, meaning you’re not only protecting your RV’s roof but also the environment and your health.
Heng’s Rubber Roof Coating for RVs is simple to work with and needs much fewer coats than some other roof coating alternatives.
Dicor EPDM Self-Leveling Sealant
The Dicor Self-Leveling sealant is ideal for providing you with a secondary, secure seal along your camper roof’s vents, screw heads, and edges.
The product is compatible with TPO and EPDM sheeting and is designed to stick to various surfaces such as galvanized metal, vinyl, fiberglass, wood, aluminum, and more. Also, its white color allows it to blend effortlessly with most roofs.
Because it is a self-leveling sealant, you can only use it on horizontal surfaces. You will also have to use larger amounts when covering screw heads as the sealant will spread out evenly and level off.
Flex Seal Liquid Rubber in a Can
The Flex Seal Liquid Rubber sealant provides impressive flexibility in terms of areas in which you can use it. You can use the product on any surface that you feel needs a rubberized, watertight coating.
Its consistency is slightly thinner than that of other products, and its formula makes its application extremely smooth, enabling you to pour, brush, or roll it on. Also, it levels out quite quickly, sealing out moisture and water.
The product is resistant to UV rays and mildew as well as non-flammable and non-toxic, making it safe to use around animals and plants. Flex Seal Liquid Rubber impressively withstands chemicals, corrosion, and rust.
How To Reseal Your RV Roof
If you intend to reseal your RV roof yourself, it is essential that you do it the right way; otherwise, the sealant and coating will not be fully effective. Fortunately, the process is easy to do. Here is a step by step guide on how you can reseal your RV roof.
1. Start by thoroughly cleaning your roof, getting rid of all the dust and dirt particles. Once your RV’s roof is clean, proceed to dry it thoroughly.
2. After that, scrape off any additional debris. Remember to take extra caution when scraping and ensure that you do not elongate any present tears or punch a hole on your roof. Once this is complete, you can now proceed to apply the sealant. Ensure that the sealant you use is compatible with your RV’s roof.
3. While wearing gloves, evenly apply the sealant and coating on your roof using a paintbrush or trowel. Make sure that you seal anything sticking through the roof of your RV, such as antennas and vents. Doing this is vital because such areas can quickly develop leaks that gradually damage your RV’s interior. Also, make sure that you coat the seams, covering all of them and not just the damaged areas.
4. If you discover a rip or tear in your RV roof, we advise you to purchase fiberglass repair tape to patch it more thoroughly. Do this by spreading your sealant over the torn or ripped area, and then place a piece of tape over the damaged patch. After that, apply sealant once more to cover that area adequately.
BEST UV RESISTANCE
EternaBond RSW-2-50 RoofSeal
The EternaBond RSW-2-50 RoofSeal is the first non-liquid sealant on this list. This product is an expandable tape that is just as effective a sealant as the liquid options mentioned above.
The tape implements MicroSealant Technology, which is made up of synthetic resins, thermoplastics, and non-curing rubber with an integrated primer.
Additionally, the RSW-2-50 RoofSeal tape has a high elongation factor, allowing it to easily expand and contract depending on the environment’s changes without impeding its adhesiveness. If that wasn’t enough, the tape is also UV-stable, and its white finish helps it reflect sunlight.
When applying the tape, clean your roof’s surface, remove the tape’s silicone line, and prevent the tape from sticking to surfaces you don’t wish to seal.
Rubberseal Liquid Rubber Protective Coating
We are back to liquid coating and sealant products with the Rubberseal Liquid Rubber Protective Coating, which you can use on any roof that needs protection, including your RV’s roof.
This rubber sealant cures into a coating of expandable acrylic that doesn’t crack easily, protecting your roof from UV rays, rain, snow, and extreme weather. The sealant is also resistant to moisture and can help regulate your RV’s indoor temperature.
Additionally, because it is a water-based formula with a low rating for unstable mixtures, the product will not cause the application surface to break down too quickly. The sealant can also retain its flexibility for much longer than some of the other products.
KST Coating Elastomeric Finish Coat
The KST Elastomeric Finish Coat is a white resin coating that seals leaks on your camper’s roof by curing into a rubber-like coat. It can expand and contract with the material you apply it on and is the perfect coating solution if you reside in highly humid conditions.
The coating can retain its adhesiveness even in harsh weather conditions, maintaining its flexibility even in temperatures of up to 160 degrees. The product can also resist up to 90% of UV rays.
BEST LEAK PREVENTION
ToughGrade Self-Leveling RV Lap Sealant
The ToughGrade Self-Leveling RV Lap sealant is a product that protects your roof from discoloration, sun damage, and the development of leaks. The product is specifically designed for rubber roofs and horizontal surfaces as it self-levels to seal cracked surfaces effectively.
However, you can use it to seal various surfaces such as vent covers, vent pipes, screw heads, air vents, and other types of material like galvanized metal, concrete, vinyl, aluminum, and wood.
Thanks to its stabilized formula, the product can protect your roof from harmful UV rays, reducing the risks of deterioration and discoloration.
The sealant can withstand harsh weather conditions and extreme temperatures without peeling. It also will not freeze if you expose it to snow. On top of that, the product is easy to work with, dries pretty quickly, and you can even paint over it.
Benefits of Sealing Your RV Roof
Sealing your RV’s roof is a vital part of RV maintenance. Regularly doing so helps protect your roof, its features, and, ultimately, your entire RV.
The sealing process will vary depending on your roof’s material type and the sealant you use. However, sealing your roof offers you several crucial benefits such as structural protection, reducing wear and tear, preventing leaks, extending your roof’s lifespan, regulating internal temperature, reduces energy use, and saves money.
Offers Structural Protection
Sealing your RV’s roof prevents the development of cracks or seals the ones that have occurred, helping you to protect your RV’s structural integrity. The structural protection a quality sealant provides you with goes a long way in avoiding costly roof repairs.
Reduces Wear and Tear
Your RV’s roof has to withstand a lot of harsh conditions, which, over time, can easily lead to wear and tear. Regularly coating or sealing your roof helps to reduce this wear and tear, keeping your roof in an optimal condition for much longer.
Even if damage occurs, all you will probably need to do is reapply a new coating layer, which is quicker, cheaper, and easier than taking your RV in for repairs.
Helps To Prevent Leaks
Leaks can easily ruin your RV’s interior, damage the installation, cause discomfort, and create considerable inconveniences. Sealing your roof helps prevent leaks from damaging the roof and the RV’s interior, keeping your interior safe and saving you from worry and costly repairs.
Extends Your RV’s Roof Lifespan
Regularly coating or sealing your roof protects it from all the external factors that affect its condition and performance, such as dirt, sleet, UV rays, rain, snow, and more. Protecting your roof from all these external factors goes a long way in extending your roof’s lifespan.
Helps to Regulate Your RV’s Internal Temperature
The protective barriers that the coating forms can also help regulate your RV’s internal temperature, helping you keep the indoor climate warm during the winter and cool during the summer.
Reduces Your Overall Energy Use
As the coating regulates temperature, you are more likely to use less energy to keep yourself warm during the winter or cool during the hot summer days. The less energy you use, the more money you save.
Saves You Money
While getting a quality RV roof coating product can initially cost you a lot, keeping your roof in the best possible shape ends up saving you more money in the long run because you get to spend less on roof maintenance.
Maintaining your RV’s roof is a never-ending process that can become challenging for many. To help you along the way, here are answers to a few frequently asked questions.
Different RVs could be fitted with different types of roofs, including rubber. While your rubber roof’s lifespan heavily depends on how you maintain it, they tend to last for anywhere between 10 and 12 years.
However, if you care for it properly, you can get up to 20 years of service from your roof before needing to replace it entirely.
Besides rubber, there are other types of roofs with which your RV could be fitted. Knowing the type of roof your RV has is the first step in determining the kind of maintenance efforts it needs.
There are three common types of material used in most RV roofs. They include rubber, fiberglass, and metal.
Rubber is the most common material being used today. Such roofs are made from a specific type of rubber known as Ethylene Propylene-Diene Monomer, or EPDM for short. Though it might sound unfamiliar, the material feels and looks just like the regular rubber you have come across before.
Here’s how to know if your RV’s roof is made of rubber:
- Rubber RV roofs are the only kind of roofs that are soft
- Newer rubber roofs are entirely white, while older ones tend to either be off-white or tan
- In older rubber roofs, the texture tends to be chalky as a result of the rubber wearing down
Though they are not as common as rubber roofs, metal roofs are the easiest type of roof to identify. Here is what to look for in metal RV roofs:
- A silver or shiny metallic look
- All metal roofs have support beams often placed after every 2 feet because the thin, flexible metal is unable to support a lot of weight by itself
Last but not least, we have fiberglass roofs. These types of roofs are becoming rarer by the day. They also happen to be the most difficult to identify because they implement a wide variety of styles.
Fortunately, all fiberglass RV roofs have similar characteristics that make it possible for you to identify them. Here are some of the common ones:
- Fiberglass roofs are the most solid and hardest type of roof used in RVs, feeling different to the touch when compared to rubber and not as flexible as metal roofs
- These types of roofs are also very smooth and tend to be quite slippery when wet
Being the most common type of roofing used on most RVs, chances are your RV is fitted with a rubber roof. While every type of roof needs regular maintenance, the steps differ depending on the type of material used.
Let’s look at the ways you can maintain your RV’s rubber roof:
- Apply a quality coating and sealant product on all the cracks and seams to provide your roof with the protection it needs
- Apply a rubber roof cleaner to remove chalking, repeating this action at least three times every year to limit future chalking and repel moisture
- Avoid parking under trees that drop debris or sap because they could damage your roof and often make cleaning your roof much more challenging
- Periodically inspect your roof for tears, rips, caulking separations, and cracks, addressing possible damage early on
- Clean your roof at least twice every year (more on this below)
When cleaning your roof, be sure to avoid citric cleaners, abrasive cleaners, or any product that utilizes a petroleum distillate. Cleaning your roof can also be a dangerous task so ensure you take all the necessary precautions beforehand.
These are the steps you should follow when cleaning your rubber roof:
- Sweep away all the loose debris, paying more attention to areas around your roof’s fixtures
- Inspect your roof for loose, crumbling, or old sealant, removing it with a medium bristle brush and a scraper
- Next, rinse your roof with a hose, also hosing off your RV’s front and sides to prevent streaks from forming as you clean your roof
- Take your bucket and fill it with soap and water, scrubbing your roof with a medium-bristled brush or a long-handled mop
- Utilizing a circular motion, clean your roof one section at a time as you look for tears and rips in your roof’s material in the process
- If your roof has more stubborn stains like sap, mold, or mildew, you could use cleaners specifically designed to clean rubber roofs
- Rinse the roof and leave it to dry
- For added protection, consider reapplying a high-quality sealant or coating if you deem it necessary
Opting for one of the great products we have listed above and following the maintenance tips we have suggested can better protect your RV’s roof, extending its general lifespan and reducing the costs you incur when repairing damages.
While climbing on top of your RV and cleaning the roof may sound like a tedious and painstaking task, keeping your roof sealed and clean can add years to your RV’s life and keep your family safe. Always make sure to use RV-specific products, and take great care when moving around on wet or slippery surfaces. If the job sounds like too much time or energy for you, consider asking the professionals to do it instead.
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