Best RV Roof Sealants of 2019 – Eternabond, Rubber Roof Tape, EPDM

The team at RV Expertise is here for all your needs surrounding the sealant products and we want to help clear the air for users. Choosing the right sealant is important for a variety of reasons and picking the right one can be the difference between a fun relaxed vacation, or one full of headaches.

In this article, we will be covering a variety of the most effective options on the market, their specific qualities, and how to choose the right sealant. Make sure to check out our quick comparison chart below for quick links to each sealant option!

Comparison Chart of The Best RV Roof Sealants


Our Rating

Link to Price

EternaBond  RoofSeal 

EternaBond RSW-4-50 RoofSeal Sealant Tape, White - 4' x 50'

Through the Roof!

Sashco Through The Roof Sealant

Dicor Self-Leveling Lap Sealant

Dicor 501LSW-1 Self-Leveling Lap Sealant, 4 Pack

EternaBond RoofSeal

EternaBond EB-RT020-50R Roof Seal, Tan, 2' X 50'

Things to Consider When Buying RV Roof Sealant

Whether you're vacationing in your RV or living in it, roof cracks can be a major hindrance in the quality of the living space. If it's raining a crack can cause major issues for the inside of the RV space such as mold, grime, and ruined electronics.

If it's hot out the cracks will let the heat in and diminish the efficiency of the air conditioning unit or fan.

Checking product specifications should be step one before buying any RV roof sealant. This will save you time, money, and help avoid unnecessary complications. We'll dive into some of the specifics to check on right now.


One specification to be aware of is the material used in making the sealant.

The material is an important component for numerous reasons because it affects the durability, longevity, and your ability to use the sealant effectively.

The material of the sealant, and the material of the RV roof or spot to be patched up should be taken into consideration. Common materials are typically EPDM or TPO rubbers.

EPDM rubbers are typically black, very durable, and can last up to a decade. So when maintenance is necessary on EPDM roof, you want to do it right. We'll mention which products go with EPDM in the product review section.

TPO roofing tends to be shiny and rigid and don’t last quite as long as EPDM, but with proper care and maintenance they can last as long as you need.

We will also be mentioning which sealants work best with the TPO material as well.


Another thing to consider before buying is how to apply the RV roof sealant. Application can pose complications if not careful with your choice. The different types of application processes include brushing on, squeezing from a tube, and sealant tape.  

The process you choose should depend on the size of the RV crack. If it’s a really small slit in the roofing, a squeeze tube should get the job done. Roof sealant tape is one of the more convenient options and can easily be expanded or contracted for changing crack conditions. 

Are all Roof Sealants the Same?

As mentioned earlier, not all roof sealants are the same. The material, longevity, ease of application, and durability of the RV roof sealants can vary widely. So be sure to check out the details of each sealant first.

Quick Take - The Best RV Roof Sealant

Review of the Best RV Roof Sealants

Now that we've identified some considerations to keep in mind when shopping for some new roof sealants, let's dive into the product review portion. For each product, we'll be highlighting some main features, then discussing a handful of pros and cons.

EternaBond RSW-4-50 RoofSeal Sealant Tape, White - 4' x 50'


  • Personalized size option
  • Simple installation and storage
  • Guarantees all climates stay out
  • Compatible with multiple surface types


  • Extreme heat may reduce seal
  • White tape looks dirty if not maintained

We’re kicking off our list with EternaBond’s RSW-4-50 Sealant Tape.

This sealant is number one for a wide variety of reasons, but we’re just gonna focus on a few. Users are often impressed by its ability to patch up the cracks in their roofs quickly and effectively. It comes with a variety of size options for customers, so it's not difficult to find the one that suits your needs.

Installation is as easy as cutting the length you need, pulling the clear backing off, and pressing it firmly against the spot on the roof needing patching. Elongation of the tape is another perk of installation as the sealant easily expands or contracts to your specific needs.

This sealant works on EPDM roofing, as well as galvanized roofing, so it's extremely versatile. 

Main Features

  • EPDM and galvanized compatible
  • Easy installation and preparation
  • Size and length options are easily adjustable
  • Super sticky for extra seal strength
  • Weather protected

Bottom Line

This RV roof sealant our top pick when it comes to fixing those large or small leaks. Thanks to its strong, protective adhesive, EternaBond ensures you have more time to relax and stay cozy. If you're looking for a user friendly model that is dependable and durable, we can't recommend this enough. 

Sashco Through The Roof Sealant


  • Water-tight seal
  • Easy application
  • Clear coat for discrete look
  • Works on almost all surfaces


  • Must brush on
  • Must store properly to maintain longevity

Next up is one of the most versatile roof sealants available. Through the Roof from Sashco is making patching so straightforward. This RV roof sealant will adhere to pretty much any surface you need, including EPDM and TPO roofing.

Through the Roof ensures a water-tight seal so the inside of the RV is secure and out of harms way. That tight seal also protects your cool air so it stays inside, keeping the heat out!

This sealant is clear, so it maintains the aesthetic appeal of your RV for years. This clearness adds heat resistant capabilities so worrying about cracking in the sealant is no longer an issue. It also doesn’t freeze, so extreme temperatures on both sides of the spectrum are covered.

The application process is relatively simple as well. Squeeze the tube on the spot you need to patch up and brush it in. You can apply it on freezing surfaces, hot surfaces, or wet surfaces, and you won’t have any problems.

Main Features

  • Doesn’t crack
  • Keeps all weather out
  • See through color
  • EPDM and TPO compatible

Bottom Line

Through the roof is the perfect name for this product because it goes above and beyond the typical RV roof sealant. If you need the job done right, don’t hesitate to jump on this top of the line sealant. Worrying about weather while on a trip is a thing of the past.

Dicor 501LSW-1 Self-Leveling Lap Sealant, 4 Pack


  • Low price
  • Includes 4 tubes
  • All-weather resistant


  • Must store properly
  • Hard to clean up if spilt
  • Requires brush to apply

Dicor has been one of the top suppliers of RV accessories since 1984 and continues to deliver high quality, reliable products. The 501LSW-1 Self-Leveling Lap Sealant is no exception to their promise of quality RV products.

This excellent RV roof sealant is compatible with any roofing material, including EPDM and TPO. Dicor sealant promises no discoloration of any material it's applied to and guarantees all weather conditions are kept out. This sealant is especially effective around the roof edges, air vent edges, or pipes, and screws.

Main Features

  • Weather stays out
  • Aesthetically appealing
  • Roof edges sealed tight
  • Simple application process

​​​​​​​​​​​​Bottom Line

Dicor is a great company with years of experience and has established trust from delivering great products time and time again. This RV roof sealant will do everything you need it to, which means weather is not a problem and those annoying cracks are gone for good. 

EternaBond EB-RT020-50R Roof Seal, Tan, 2' X 50'


  • Easy storage
  • Water-tight seal
  • Fun and simple to apply
  • Use on almost all surfaces


  • Black tape stands out on lighter surfaces
  • Creases in tape cause installation difficulties (store safely)

We’re closing out our list with another great RV roof sealant tape by EternaBond. This sealant will work for any sealing needs as it comes in multiple lengths and widths.

If you’re roof is EPDM, TPO, Hypalon, or most PVC and metals, this sealant will get the job done.

This sealant will keep the weather outside so you can enjoy your time inside. Leaks in the structure are gone immediately and you can go back to relaxing.

Application is as straightforward as putting a Band-aid on a cut. Measure your required amount lengthwise, cut it off, pull off the clear adhesive, press firmly onto the crack, and the problem is solved.

Main Features

  • Weather resistant
  • Simple application
  • Perfect for re-seaming all roofs

Bottom Line

There is no more worrying about weather with such simple installation and quality of material. No matter the conditions, you can trust this sealant will keep you protected when you need it to most. It can be easily stored in between uses and is extremely user friendly. 


Remember to check your RVs roof material to ensure compatibility so there aren’t any mix ups in your purchase and you can patch up those leaky areas as soon as possible. We’ve offered a variety of colors as well to help maintain the aesthetic appeal of the RV.

All of the sealants above are completely weatherproof to ensure rain stays out, and maintenance of the inside temperature is right where you want it to be.

We hope this article was helpful in your decision making process, don’t hesitate to comment below with any questions. Please enjoy your RV endeavors going forward!