Best RV Roof Sealants 2021

Dicor RPCRC1 White EPDM Rubber Roof Coating

If you need to re-coat a RV EPDM rubber roof, the EPDM rubber roof from Dicor Corporation is an excellent choice. It is also suitable for TPO rubber roofing and requires the prior application of Dicor EPDM Rubber Roofing Cleaner / Activator to ensure a strong bond to your roofing material. This waterproof RV EPDM roof liner can form a waterproof seal when used as part of a Dicor liner system. Apply at least two coats of this sealant to your roof for complete coverage and protection.

This liner is available in a gallon that can cover up to 125 square feet of RV roof area. It is compatible with all RV rubber roofs and helps eliminate irritating roof roar that can cause additional noise (and annoyance!) While you’re driving. It is an acrylic coating with excellent resistance to water and UV rays. It also contains flame retardant characteristics for a higher degree of protection.

With this EPDM rubber roof covering, you get an impressive protective elastomeric barrier designed to extend the life of your RV’s rubber roof membrane. It should be noted that it also works with a commercial grade 2 part coating system. This system works by combining a cleaner or primer, which is essential for proper ceiling preparation, with an acrylic coating, which then provides an excellent protective barrier. This 1 Gallon Rubber Roof Cover from Dicor is also a highly recommended product due to its broad coverage.

Liquid Rubber RV Roof Coating Sealant

Liquid Rubber RV Roof Coating - Solar Reflective Sealant - Waterproof - Easy to Apply - Brilliant White, 5 Gallon
  • FLEXIBLE RV ROOF COATING - Solar reflective, cool roof, & UV resistant, Final membrane has over 1000% elongation preventing adhesion failure, and is UV Stable stopping the sun from degrading the product

For those who have used an RV roofing sealer and coating that has not held up as expected, Liquid Rubber Roof Coating is our pick for a solution that will form a solid bond with your RV roofing material. avoids having to close the roof before you are ready to go back up. This sealant is available in one gallon and five gallon sizes so you can be sure you have enough to cover the total square footage of your RV’s roof. A single gallon of this coating is designed to cover only 50 square feet of RV roof area.

At up to 1000% elongation, this will be a more flexible roof sealant that you can be sure will prevent bond failure. In addition to flexibility, it will also help you protect all types of roofs as it will adhere to a wide variety of materials. Because this sealer is applied like paint, you can be sure that it will be very easy to apply as you only need to brush it over the ceiling surface. You can use this sealer with the peace of mind that it won’t ruin the environment because it has a water-based formula that makes it more environmentally friendly. And when it’s dry, it will be UV resistant. This sealant has a relatively long drying time and therefore will remain tacky for a while. However, the quality of the stamp you will get is worth it.

It is UV stable to prevent the sun from damaging your roof substrate and reflects sunlight to keep the interior of your RV cooler during the summer months. The solution itself offers a 1000% elongation, which serves to prevent bond failure and create a strong bond with your roofing material. You will also benefit from an easy application process with this sealer. Just pour it on your ceiling and spread it evenly with a paint roller. You may need a smaller brush for edging work, which is actually recommended before covering the main flat surface of your roof. It is also recommended to apply this coating at temperatures above 50 degrees Fahrenheit (10 degrees Celsius).

ToughGrade Self-Leveling RV Lap Sealant

ToughGrade RV Self Leveling Sealant offers high quality performance with its ability to work effectively in a variety of situations that may require sealing. For example, this sealant may work on trailer roofs, ventilation systems, air conditioners, and other surfaces that may require rubber roof waterproofing.

Designed for rubber roofs, Tough-Grade Self-Leveling Sealant is a UV stabilized formula that prevents leaks while resisting sun damage and fading. It is designed for horizontal surfaces, this is how it works to self-level and effectively seals cracked surfaces to prevent leaks. It can withstand extreme temperatures and inclement weather without peeling off. Also, it doesn’t freeze when exposed to snow. This white ToughGrade sealer is UV stabilized to prevent cracking and fading over time, keeping your RV looking its best. Use it to fill holes, gaps, or cracks along vents, roof edges, and other horizontal surfaces to keep your RV efficient and free from leaks and pests.

Any DIY warrior will find it easy to apply once you prepare the surface. It can also be used to seal air vents, ventilation pipes, and other forms of materials such as wood, concrete, aluminum, vinyl, and galvanized metal. It dries pretty quickly and you can paint over it. While it does not discolor the applied surface, it does have an off-white color that may not look attractive on a white ceiling. Another downside is that it may not self-level as evenly as expected.

Dicor 501LSW-1 Epdm Self-Leveling Lap Sealant

Dicor 501LSW-1 Epdm Self-Leveling Lap Sealant-10.3 Oz. Tube, White, 10.3 Fluid_Ounces (Packaging May Vary)
  • Creates a secure, secondary seal along the roof’s edges, air vents, vent pipes and screw heads

Our first product, the Dicor 501 LSW Self-Leveling Lap Sealant is the perfect product to ensure that the roof of your RV will not suffer from leaks because it is the right roof sealer for leaks. You can also take advantage of its ability to protect your roof from elements. Even if it’s something heavy like a big snowstorm or rain shower, this sealant will hold up and make sure your roof doesn’t get any damage. As someone who enjoys extreme weather arving, this product can certainly be effective. This Dicor sealant works extremely well to create secure secondary seals with your RV roof edges, vents and screw heads. Designed to adhere to a wide variety of surfaces, including wood, vinyl, aluminum, galvanized metal, fiberglass and many more, it is suitable for a wide range of different RVs. It is compatible with EPDM and TPO sheets and the white color of the sealant makes it compatible well with most RV roofs. As a self-leveling aggregator, it is best to use it on horizontal surfaces, as the formula is too fluid to use vertically. When using this product, remember to use more of it to cover the screw heads, so that the product spreads and layers. If you have any leaks or want to avoid it by sealing every possible dog and crane, this is the product for you.

Dicor sealants are known to be of high quality, especially for use as APDM rubber sealants. What we like about this Dicor lap sealant is that it will create a stiff seal on the edges of the roof and even around air vents, vent pipes or other delicate parts. Like air conditioners and screw heads. Furthermore, this product is suitable for use in EPDM sheets so that it can adhere to any aluminum, mortar, wood, vinyl or fiberglass roofing. You can use it forged metal and concrete. Sealing your roof is not the only purpose of this sealer. You also find it incredibly effective for air conditioning, ventilation pipes and ceiling around vents. It even seals the screw heads to make sure they stay firm. It also helps that this sealer can stabilize UV ​​and reflect that permanently damaged UV ray. This capability will ensure that the roof of your RV will not suffer any fading or deterioration, which means it will remain in its initial state for the next few years. This sealant remains flexible to ensure a normal cleaning process. What’s more, its top flexibility layers will prevent it from cracking. Dicor has done a great job of making sure this sealant is an incredibly user-friendly product.

However, the best part about this sealant is the amount of material it can adhere to: EPDM, mortar, vinyl, aluminum, wood, galvanized metal and concrete. Given these capabilities, it is clear that you will be able to make the most of this product. Your only problem with this product is that it does not work vertically with its self-leveling capabilities. Therefore, you should think about what you plan to use this sealant for before putting it in your online shopping cart. A major disadvantage is the size of the tube in which it enters. If you have a large RV and want to seal the entire roof, it may take 5 or more tubes to finish the job. However, on the other hand, water damage will be more expensive to repair than to properly seal everything. It is worth noting that the formula has a learning curve before you become a professional in application.

Dicor 501LSW-1 Epdm Self-Leveling Lap Sealant is the Best RV Roof Sealant in 2021

EternaBond RSW-4-50 RoofSeal Sealant Tape

It is our choice as the best RV roof sealer available in the market. Since it’s white, it’s great to use in sunny climates and be ribbon. The backing has a UV coating to support the tape for a long time, despite the constant exposure to UV rays. RV is incredibly easy to apply to roofs that need to be closed to protect against elements. It only takes a little surface preparation for the fiberglass roof to be suitable for RV owner application. Each roll of tape is 50 feet in length and 2, 4, 0r 6 inches in width. This means you can cover up to 8 square feet with a thin roll and up to 25 square feet with a wide roll. If you find yourself leaking and find yourself in an unfortunate position in need of a repair solution, check out the Eternabond roofing tape. This tape is certainly not designed for protective roof maintenance, but if your RV roof already has small leaks it will help you cut the tide. This waterproofing tape is a regular choice of many roof repair experts because it can adapt to almost any type of RV roof. These include EPDM, TPO, all metals, mostly PVC and a variety of roofing materials.

Even when exposed to UV rays it is considered to be particularly stable, where the products are tested and last up to 19 years in direct sunlight. This strip is available in strips four inches wide and 50 feet long. Each tape has a built-in primer that allows a strong bond with any surface it is applied to although you always recommend cleaning and drying the surface around the leak well before applying the tape. The strip design of this tape makes it a great solution for sealing any seams along the entire roof edge of your RV. These gaskets are known to leak in older RVs and often require additional waterproofing in this area. This tape gives you a permanent waterproof seal along with those parts and can be installed at temperatures up to -20 degrees Fahrenheit (-28.89 degrees Celsius).

Another feature you can ignore is that this sealant can stretch better. This skill means the product will run like your roof thanks to its flexibility, when it is needed it is stretched and contracted. In other words, it adapts to all situations without affecting the overall performance of the sealant. And all thanks to the high stretch factors of this product. Also, you can easily rest even knowing that this product is incredibly easy to use. The process of use has often been praised by reviews of this RV roof sealant that even novice users were amazed at how easy it was for them. Seeing my tendency to waste these things, you bet that this aspect is a welcome sight. It was nice to see that this sealer was able to fight mold and other fungi. Another feature of this product is that it proves that this manufacturer has put their time and thinking into its overall quality.

EternaBond RSW-4-50 RoofSeal Sealant Tape is the Best RV Roof Sealant in 2021

Beech Lane RV Roof and Leak Permanent Repair Tape

Beech Lane RV Roof and Leak Permanent Repair Tape 4" x 50', Permanently Stops Camper Roof Leaks, UV and Weatherproof Sealant
  • WATERPROOF, STICKY WHITE SEALANT TAPE STOPS RV LEAKS - Tired of irritating RV roof leaks? Stop them in their tracks with this high quality sealant tape that gets the job done. Works on RV rubber roofs EPDM, PVC, Hypalon, Most Metals, and TPO. Does not stick to silicone. Do NOT USE the tape with mineral spirits or waterproof materials including benzene, carbinol, ethylene, silicone. Denatured alcohol is recommended for surface cleaning.

Beach Lane is a reputable supplier of RV accessories and this RV rubber roofing sealant is a great example of its high quality products. Tapes are probably one of the easiest forms to apply roof sealant and tapes easily drawn from Beach Lane to this one are even easier. What’s more, it can protect against all weather, be it rain, wind or sun. The seal that the tape makes with different types of roofs is waterproof. No water can seep through a hole in the vicinity of a weakness such as a roof or air conditioning vent. Using sealant great you can see it is RV roof repair tape, which means all you have to do is apply the tape to the surface, and it will work. And since it’s a self-priming tape, it will instantly seal any gaps. But the best part about this sealant is that it is weatherproof. As a result, it does not consider total rainfall or heavy snow storms; This sealant will protect your RV roof from damage.

This will protect your RV roof from rot. In other words, there is a lot about this product that any RV owner can benefit from and the price is not so great either. Everything is really user-friendly. Also, it comes with a lifetime warranty, which gives you some protection from anything that happens with the product. It never hurts to take out insurance in the event that you receive a defective product. And it helps as well that he is able to work on different roofing materials; EPDM, TPO, Hypalon and PVC. We should note that if you want the best results, it is advisable to prepare the surface with non-alcoholic alcohol before applying the tape.

Beech Lane RV Roof and Leak Permanent Repair Tape is the Best RV Roof Sealant in 2021

Things to know before buying an RV roof sealant

Surface Material

You must first understand what kind of material your RV roof is made of as it will be important to find the right sealant. In most cases, it will be a rubber component, used by RV manufacturers because it is lightweight, cheap and durable. If you have a rubber roof, you will need a sealer that can work with this type of material. Sounds like common sense, doesn’t it? Well you will be surprised how many people neglect to check the product details and end up buying the wrong product. We also need to mention that there are two different types of RV rubber roofing: EPDM and TPO. Therefore, you need to consult your RV’s manual and determine what material you have on the roof.

In addition to rubber roofing, there are also fiberglass, aluminum, vinyl and other less common materials used as roofing surfaces. Given all this information, it is clear that understanding your roofing material is the first step in this whole process. Otherwise, choosing the wrong seal can have such a devastating effect on the roof of your RV to make your situation better rather worse. So please be smart and start this process by determining the type of material used on your roof before you do anything else.


Check the durability of the RV roof covering before buying any. The durability of this product depends entirely on how many times you need to replace the coating. If you are planning to buy liquid sealants or tapes, you should know that their durability is based on two important qualities: elasticity and tear resistance. You will find that it is durable if it is elastic, which means it is able to roll and rotate without compromising its important ceiling properties. Due to the tear-proof nature you are also guaranteed the durability of the product. This means it is able to withstand the brutal force and unprecedented impact before it tears or breaks.

Water Repellency

It is advisable to choose an RV roof covering, which is waterproof. With this function, rain water can be prevented from entering your RV. One way to understand the water repetition of roof coverings is to read and understand its compounds. This can help you determine if the coating can help. The great thing about the water repellent or waterproof RV cover is that it assures users that outside moisture will never affect it, thus protecting the roof. You need to look at this feature because the roof covering is likely to be exposed as the weather changes.

Frequently Asked Questions

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

A roof sealant can take the presence of duct tape or a mixture of paint and varnish. It works by sealing any cracks and holes in the roof or in the vicinity of air vents or air-conditioning units, making RVs waterproof. They adhere to the surface of the RV to create a hard coating and harden again. Also, many products are made to protect your car from further damage by becoming resistant to impact, UV rays, sun, water and wind. All of these environmental factors can wreak havoc with your RV, so it’s a great idea to use a coat of RV sealer whenever you see a crack or hole formation.

How To Apply Roof Sealant?

Application directions may vary depending on the manufacturer. However, in many cases it is not at all difficult to apply it on the roof of your motorhome. All you need to do to determine how much siding you need is to measure the length and width of the roof. Then you should get the whole roof area. Multiply the length and width, then divide the result by 42 This is the approximate number of gallons to apply to your roof. Apply it, but make sure there is adequate ventilation in the area where you are applying it. The roof surface is prepared by washing or scrubbing. Remove camouflage and loose roofing materials. Use a paint brush to apply the coating. Also cover Depression, Protrusion and Sim. Let the coating dry. Apply top coat if necessary.