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The Best Products For Preventing RV Roof Leaks

top part of a motorhome - preventing RV roof leaks

The Best Products For Preventing RV Roof Leaks

A leaky roof is an instant trip-ruiner for anyone who loves to travel in an RV. You’re counting on your camper to keep you warm and dry, so RV roof leaks cannot be ignored. They can cause long-term damage to your vehicle as well, which will affect its livability and resale value.

Luckily, there are ways to fix or prevent leaks from happening in the first place. You’ll want to make sure you’re trusting the right product with this important task, so we’ve assembled a list of 6 of the best sealants and protective coatings to use on your RV roof. These might come in the form of tapes, liquid coatings, or caulking tubes. Rest assured that your roof is in good hands with any of these options though!

RV Roof Magic

RV Roof Magic is one of our personal favorite roof products. It has fantastic waterproofing abilities and there’s no need to use a primer before you apply it. It comes with a 10-year warranty as well, and it can easily extend your RV roof beyond that length of time.

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Aside from fixing RV roof leaks and other small cracks and holes, this product comes with a host of other benefits. It’s also UV-resistant, dries within hours, and contains built-in biocides that protect against fungus and mildew.

According to their website, RV Roof Magic can be applied to the following roof types:

  1. EPDM
  2. Can be applied directly over any non-silicone product such as Dicor, Kool Seal, and elastomeric.
  3. Alpha rubber roof made by Fleetwood RVs.
  4. Fiberglass
  5. Butyl rubber
  6. Hypalon rubber
  7. Metal

That covers pretty much every option on the market! This is a good overall roof product that can protect your RV against leaks and a variety of other dangers.

Dicor Self-Leveling Lap Sealant

Dicor is a huge name in the world of RV roof products. If you’ve got a leaky roof, or are trying to prevent one from forming, they should be one of your go-to options.

This Self-Leveling Sealant is a wonderful product to use on leaky roofs. Dicor products are designed to fill in the cracks and weaknesses of a roof, and this one takes the form of a caulking tube. It can help create a seal along a roof’s edges, around air vents, vent pipes, and screw heads. It can be used on any roofing material and it is UV-stabilized to prevent deterioration.

This sealant cures quickly and holds up well in a variety of weather conditions. You may want to add a coating over the top of it as an extra layer of protection, but it’s not necessarily needed. This is a strong option that can stand up to the competition.

Dicor 2 Part EPDM Rubber Roofing

If you’re sick of dealing with RV roof leaks, think about using this 2-part roof coating from Dicor. The first product (Cleaner/Activator Part 1) is designed to prepare the roof for treatment, while the second part (Rubber Roof Coating) creates a firm and powerful protective layer. The combination of these two creates a perfect circle of protection for your roof.

“The coating provides superior resistance to harsh weather and ultraviolet light and has great fire retardation characteristics.”

Dicor Products

The first layer (the primer) only needs to be applied once, but you should apply at least 2 coats of the acrylic coating.

This 2-part system is one of Dicor’s most popular offerings. It’s proven to be very effective at protecting roofs from a variety of threats, including water damage and leaks.

Sikaflex 715 Semi Self Leveling RV Roof Sealant

The Sikaflex 715 is another great roof sealant to add to the lineup. This product is similar to the Dicor Ultra Sealant in many ways and it comes in the same caulking format as well.

When it’s applied to an RV roof, the Sikaflex creates a crack-resistant roof seal that will prevent UV damage and fill in any holes or cracks that may be causing leaks. It is white as well, which blends nicely with most RV roof colors.

The Sikaflex 715 has received 5/5 reviews from its customers, so you know that you can trust this product to deliver on its promises!

EternaBond RSW-4-50 RoofSeal Sealant Tape

Liquid coatings and caulking sealants are all well and good, but the EternaBond offers something for people who prefer to use tape as their primary roof protector.

Tape is simple to apply and you don’t need to use extra products to clean and prime the surface beforehand. Just locate the seams, cracks, or other areas that need reinforcement, and apply the tape!

This adhesive tape is extremely durable and it doesn’t need any extra products to back it up. It creates a waterproof and airtight seal that will prevent any RV roof leaks before they can form in the first place.

EternaBond is designed to stand strong over time and comes with UV-resistant backing. Tape is probably the easiest roof protectant to apply because it requires no extra equipment or cleanup. Just stick it on and you’re good to go!

Liquid Roof RV Liquid EPDM Coatings

Liquid Roof is another popular brand among people who want to take special care of their RV roof. As the name suggests, this is a liquid product that can be poured directly onto the roof surface.

You also only need to use one coat of this coating because it is effective even in small quantities. There is no shrinking or warping as it dries, so a single coating is more than enough to create a beautiful protective coating.

You also don’t have to wait for the effects to kick in. As soon as the coating touches the roof, it grants water protection. It then dries quickly and forms a waterproof seal that will hold up against harsh weather conditions. Even freezing conditions won’t harm this tough coating!


All of the products mentioned above will perform well and help protect your RV roof from developing leaks and suffering from water damage. You can’t go wrong with any of them!

Track your RV maintenance

Make sure you keep track of all your RV maintenance and repairs with an online tool such as RV LIFE Maintenance. 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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