Got a Leak? The Best RV Roof Sealant to Use

Like any other vehicle, your RV calls for dedicated maintenance to keep it in good condition. Unlike most other vehicles, one of the most problematic areas of your RV will be the roof. So you may need some RV roof sealant.

Since your RV will essentially be your house on wheels whenever you are on the road, RV roof sealant should always be part of the package when you travel. You don’t want to be stuck on the wide-open backroad in the middle of a beautiful country with a leaky roof.

With the right RV roof sealant, you can make a quick patchwork of whatever leaks your roof might have and prevent further deterioration of your vehicle. However, just as is the case with every other crucial product in the market, there are hundreds of options available, and not all of them are created equal.

This RV roof sealant review will give you a quick look at some of the best and most reliable sealants on the market today so that you can make your buying choice from an authoritative vantage point.

RV Roof Sealant Review

When buying a roof sealant for your RV, there are some important considerations that you need to make:

• Type of sealant to buy: There are several different types, including adhesive, liquid, tape, and self-leveling sealants available. The type you choose should depend on your RV roof material, as well as what it is exactly you want to seal.
• Use: While the primary use is to make a quick patchwork of your leaky roof, you can use the right kind of sealant to fill in gaps and cracks on things like vents and air conditioners or any other cracks that need to be made as airtight as possible.
• Roof material: Different RVs have different roof coatings, including fiberglass, aluminum, and rubber. The type of sealant you choose should be compatible with the roof material and readily adhere to it.

That being said, here are some of the best RV roof sealants to buy:

Geocel ProFlexRv Flexible Sealant

This Geocel ProFlexRv Flexible Sealant comes in an easy to operate container that has a pointed squirter. That combined with the fact that it has a stable rubber cement-like consistency makes it very easy to use on your RV without making a mess. The tube and the pointer squirter makes it easy to accurately place the sealant exactly where you want it to be.

Specifications:

• Sealant Type: Liquid Rubber
• 10 oz. container

Pros:

• It is crack and UV resistant
• This is an exceptionally flexible sealant in an easy to use container
• It offers you excellent adhesion to a host of surfaces even when those surfaces are damp
• Dries well and clear

Cons:

• Takes a long time to dry, especially in bad weather

Verdict: If you are looking for something that is not only easy to use but also affordable and offers excellent adhesive properties, then this is the right roof sealant for you.

Dicor Rubber Roof Acrylic Coating

Perfectly designed for EPDM rubber RV roofs, this Dicor Rubber Roof Acrylic Coating is ideal for those who don’t mind spending just a little bit more on premium products. When applied, it forms a lock-tight seal on those pesky roof cracks. It is worth noting that you have to apply a minimum of two coats to achieve the desired effect.

Specifications:

• Sealant Type: EPDM coating
• 1-gallon container
• Specific Gravity:1.41

Pros:

• It is UV and weather-resistant
• When used properly, it drastically cuts down on any roof vibrations
• Covers up to 125 square feet

Cons:

• You need to use it in conjunction with Dicor roof cleaner
• You need to use two coats to get the desired results

Verdict: While needing to use the Dicor roof cleaner and two coats of this sealant might seem like a bit much, the truth is that you get so much from this sealant than you would expect. Not only does it seal whatever cracks your roof had, but it also stabilizes it and cuts down on any annoying vibrations.

AP Products Sikaflex-715

While this AP Products Sikaflex-715 will work well with most RV roof materials, it is particularly effective when you use it on EPMD rubber roofs. It is designed to expand and contract as it cures, which makes it very flexible and prevents it from cracking in the most extreme of temperatures.

Specifications:

• Sealant Type: Adhesive
• 10 oz. container

Pros:

• It has high elasticity which makes it very flexible
• Works well and adheres to most roof types
• Low-VOC; won’t crack even under the most extreme of temperatures
• Comes in an easy to use tube

Cons:

• Takes a long time to cure fully (typically a few days)

Verdict: A handy roof sealant that works well with almost all roof types and doesn’t crack under extreme weather – it might just be the perfect sealant for your RV.

Liquid Rubber RV Roof Coating

Using this Liquid Rubber RV Roof Coating is one of the best ways to provide an extra coating of rubber to your RV roof. This extra layer of protection will help keep your roof in good condition and seal any cracks. This particular gallon can provide you with 50 square feet of coating even after two or three coats of application.

Specifications:

• Sealant Type: Liquid Rubber
• 1-gallon container

Pros:

• It is easy to apply; use a paint roller
• It offers you quick curing time with every coat
• Environmentally friendly
• Water-based

Cons:

• You’ll need two or three coats

Verdict: Giving your RV roof an extra layer of rubber protection will help keep it in good condition for much longer. This is one of the best ways to achieve that end.

EternaBond RoofSeal

This list would be incomplete without some tape. This EternaBond RoofSeal is not just any kind of regular tape. It can easily contract and expand even under extreme weather to keep that seal tight on those cracks. It has UV-stable backing making it able to withstand the sun without coming to ruin or degrading quickly.

Specifications:

• Sealant Type: Self-adhesive tape
• 4 inches in width

Pros:

• Easy and convenient to apply
• UV-resistant
• Thick and very durable
• Adheres well to various roof types

Cons:

• It has such a strong adhesive nature that you will find it difficult to fix any application mistakes

Verdict: You have to have some tape. This one is convenient to use, has a strong adhesive nature, and it’s very affordable.

Any one of these RV roof sealants will come in great handy, depending on your RV roof type.