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What’s The Best RV Roof Sealer?

Published on January 31st, 2022 by Emily Lawrence

RV roof sealant being applied to roof

What’s The Best RV Roof Sealer?

A common go-to response for any kind of roof problem is, “Use a sealant on it!” That’s easy to say, but there are tons of products out there that can be used to seal an RV roof, and some will do the job better than others. So, what’s the best RV roof sealer?

Dicor EPDM, RV Roof Magic, and Eternabond are all good RV roof sealers. They come in different forms, so some are better for certain jobs. For example, Eternabond is a tape, while RV Roof Magic is a liquid. All of them can form a sturdy seal and protect against cracks, water damage, and UV radiation.

A good sealant needs to be UV resistant, prevent water from seeping through, and provide a tough, yet flexible seal that won’t be broken when driving over bumpy roads. Some products are good at only one of these jobs, while the best ones need to be suitable for all three. Let’s explore the details of some of the best RV roof sealers to help you pick the best one for your vehicle.

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Dicor EPDM

Dicor is one of the best all-around products for RV roof problems. When people ask “What’s the best RV roof sealer,” a Dicor product is probably the first thing that will be recommended. For sealant problems, the Dicor EPDM self-leveling sealant is always a great choice. This comes in a tube so the product can be squeezed out and applied directly to the problem area. You won’t need to use a lot of sealant to solve your problem because a little goes a long way.

However, if you do need to cover a larger area, you may want to consider the Dicor RPCRPQ EPDM Rubber Roofing Coating System instead. This is a liquid sealer that spreads over the surface and dries quickly. It can also be sprayed onto the roof if you want a thinner coating.

Regardless of the specific product you choose, Dicor has proven to be successful at sealing and protecting RV roofs. Users have commented that it’s effective and fairly easy to apply. The Dicor website states that their sealants are UV stabilized. This helps prevent discoloration in the RV roof and protects it against sun damage. You can rest assured that your RV roof will look great and be protected when you use this product.

RV Roof Magic

RV Roof Magic is another good answer to the “What’s the best RV roof sealer” question. This is a liquid product that can be used alone or in conjunction with other sealants. It’s specifically formulated to work with RV roofs and protect the seams and weak areas.

This is a great all-around roof protector because it’s waterproof, UV resistant, and contains fungicides and mildewcides that prevent unwanted growth. It can stay strong in many different circumstances when other products might break down. Salty air/water won’t affect RV Roof Magic, so you don’t need to worry about your sealant when you visit the ocean.

This product is also easy and quick to apply. You don’t need to thin it or mess around with primers. It can be applied directly to the roof and will dry within 1 day. It’s also quite strong and won’t break without a fight. RV Roof magic’s tensile strength has been measured at 1200 PSI!

When you buy a container of RV Roof Magic, you may have more than you need, but it’s a good idea to use it on your whole roof, not just specific cracks. You can benefit from the total protection it provides. Check out for more details about this sealer.


Eternabond is another quality product that can be used to protect RV roofs. A lot of RV owners swear by this product and will testify that its performance is unmatched. This sealant is different from the others because it comes in the form of tape.

Most of the tapes are about 4 inches wide, so they can cover large cracks with ease. Eternabond forms a watertight and airtight seal, so nothing will make it through the cracks once it’s been applied. It’s very easy to apply and is designed to protect the seams on RV roofs.

This tape is UV resistant and doesn’t require a complicated application process. You can also use it on other structures or surfaces that need some protection. Eternabond works equally well for APDM, aluminum, wood, fiberglass, TPO, and steel.

Over 6,500 people have given this product a 5/5 review on Amazon, making it one of the most trusted and highly rated options on the market. You can view customer reviews and see purchasing options by visiting the Amazon product page for Eternabond.

How to apply RV roof sealant

So now we know what’s the best RV roof sealer. There are plenty of different options and forms of sealant to use and all of them will require a slightly different application process. For the best results, there is some standard roof prep work you should always do.

Sealers work best when they are applied to clean, dry surfaces, so you need to make sure your RV roof is ready to go before you try to fix anything.

To begin, gently clean the entire RV roof. Use mild cleaners that will cut through dirt and grime, but not damage the roof surface beneath. If you are trying to apply a sealer, there’s probably a seam or rip somewhere that you will want to treat as gently as possible. Use a soft or medium bristled brush to scrub the roof.

Once you’re satisfied with the cleanliness, rinse off the surface (taking care to avoid putting too much pressure on weakened areas), and wipe off the roof to help it dry faster. When everything is clean and dry, apply a small amount of your chosen sealant to the problem area. You will want to do this as a test before you commit to it wholeheartedly.

Spread your sealant over a small area (about 1 foot or less) and allow it to set. Pay attention to how easy or difficult it is to apply the sealant so you can decide whether or not this product is working for you. If you’re satisfied with the final result, you can move on and spread your sealer over the whole problem area.

It’s a good idea to use a protective coating on your roof once the sealant has been set. RV Roof Magic is a good choice for this because it serves as both a sealer and a protective coating. Check your seal regularly to ensure it is holding up well and reapply your sealant as necessary.

Make sure you keep track of all your RV maintenance and repairs with an online tool such as RV LIFE Maintenance from RV LIFE. Not only can you keep all of your documents in one place, but you’ll also receive timely reminders when maintenance is due to help you avoid costly repairs and potentially serious accidents.

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6 thoughts on “What’s The Best RV Roof Sealer?”

  1. We manufacturer RvRoofMagic. But here is an article we wrote about how to choose and Rv Roof Coating. Hope this helps

    6 Tips to Help You Choose the Right RV Roof Sealant

    Unless your RV is brand new, you can bet that the roof has started to degrade a bit. That’s natural – it’s exposed to harsh sunlight, freezing temperatures, rain, sleet, snow, salt and more. It also has to put up with the sheer forces created by driving. All of that takes a toll, and over time, your roof will degrade. The good news is that an RV roof coating can give your recreational vehicle a new lease on life, and an almost-new roof. How do you choose the right coating, though? For most roofs it is the chalking that is the most frustrating. You will want to look for a higher quality product that is solvent based. Solvent based coatings will chemically bond to a roof not just simply dry. They are a little more expensive but will las significantly longer and will not require multiple coats.

    1. Check the Type of Roof

    First things first – you need to check the type of roof your RV has. There’s a good chance that it will be made from EPDM rubber. If so, then you should use a rubber RV roof coating product. However, you might have a fiberglass roof (rare) or a roof made out of TPO (even rarer the rvroofmagic is the only coating that can go directly over TPO). You want to be sure that the company clearly in their writing states the product is compatible and warrantied for those types of roofs. Also what some will not tell you is that you need a primer or double coats of the product.

    2. Check for Holes and Other Structural Damage

    Most RV roof leaks stem from age-related deterioration. However, some of them stem from physical damage. Falling branches from trees that you park under are the prime source of this type of damage, but there are others. Any structural damage must be repaired before you apply any type of RV roof coating.

    3. Check the Flexibility of the Cured Product

    Before buying any type of RV roof sealant, check to determine how flexible it will be once applied and cured. Remember that your RV’s roof must deal with stresses that are not found with other types of roofs, such as the sheering forces that come with going around curves. This means that roofs must be very flexible, and yet strong enough to resist wind and rain. Not all RV roof coating products are up to this task.

    4. Verify How Long for Full Waterproofing

    Unless you are lucky enough to own a business that services RVs, you’re going to be applying the roof coating product outside, and it will need to remain outside so that it can dry and cure. The problem here is that some products can take a very long time to become waterproof. What happens if a sudden thunderstorm comes up? It could ruin all your hard work. The right coating product will be waterproof from the moment it’s applied to the roof, ensuring robust protection.

    5. Verify the Number of Coats Needed

    The right RV roof sealant can be applied with just a single coat. Many products on the market require at least two, if not more coats. What’s more, there are many products that require you wait a number of hours between applying the coats. This just increases the time you have to spend working on the RV. Choose a product with single application capability.

    6. Verify the Tools Needed to Apply the RV Roof Coating

    Finally, make sure you know what tools will be needed to apply the coating. Some products can be applied using little more than a squeegee and a paint roller, while others may require specialty tools for proper installation. The fewer tools you need to purchase for this project, the better.

    With the tips we’ve provided, you should be able to find an RV roof coating that fits your needs, that can be applied quickly and with a minimum of fuss, that offers instant waterproofing, and that still manages to deliver the flexibility and strength needed by RV roofs.


  2. Rv roofing
    process is pretty straight forward, scrub rubber roof with a cleaner for rubber roofs, then take off caulking on entire roof, if it’s been leaking for a while you’ll have to peel back rubber roofing to fix rotten wood. Put it all back together, use Conklin roofing material looks like thick paint, use paint brush to put down a layer around all openings and on the edges embed spun-flux into the first layer on edges put into rain gutters. After all spun-flux is done finish roof with 2-3 coats of Conklin roofing material, goes on with a roller needs some sunshine to fully cure it.
    Now you will have a roof that is completely sealed. Will last 10-15 years with out any maintenance and no more caulking ever.

  3. It’s my understanding that different sealers and methods are required depending on if the roof is rubber(epdm)
    or aluminum. I find sealer manufactures and folks writing about this do not seem to address this issue. My Holiday Rambler Endeavor is aluminum with fiberglass end caps. Also, most people on the RV forums recommend Proflex caulk on certain seams.


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