Best RV Roof Coating for Rubber, Fiberglass & Metal Roofs

Coating your RV roof will not only keep your rig interior dry, it can also lower your cooling and heating costs, reduce roof maintenance expenses, and keep any costly roof repair bills at bay. Looking for the best RV roof coating for your rig? There’s plenty to choose from, so save yourself time and effort with our RV roof coating buyer’s guide and top-rated selection.

Best RV Roof Coating

To help you find the best RV roof coating, here is our top selection of nine of the best-selling RV roof coatings on the market.

Heng’s Rubber Roof Coating

Heng's Rubber Roof Coating

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A highly-popular, easy-to-apply option, Heng’s Rubber Roof Coating is an excellent choice for sealing your RV’s EPDM rubber roof. It seals and protects, filling in seams, tears, and leaks. Thanks to its brilliant white finish, your roof will look brand new.

Formulated from 100% acrylic latex polymer, this roof coating provides an excellent protective seal against the elements. Non-polluting and non-toxic, it also has great insulative and acoustic properties, improving your sleep and helping to keep your AC bills down. Thanks to its elastomer properties it is highly durable – this product will not crack, expanding and contracting with your roof. It is also UV-resistant.

Depending on your type of roof, average coverage is approximately 200 square feet per gallon. If your roof is currently pretty black and in need of a lot of covering over, then you will probably need more like two gallons to do a 15 x 8 foot roof with a good level of opacity.

With a consistency fairly similar to latex paint, this RV roof coating rolls on smoothly. Just be sure to have thoroughly cleaned your roof so it’s free of any grease and dirt for maximum adhesion. This product should dry to the touch in under two hours. Four hours drying time is recommended before applying a second coat, with a rapid total cure time of just 24 hours.

Sold in gallon containers, this RV rubber roof coating is reasonably priced, even more so considering its excellent performance and relative ease of application. If you are looking for a cost-effective way to recover your RV rubber roof, be sure to take a closer look at this top-selling product.

Proguard Liquid Roof

Proguard Liquid RV Roof Coating

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Considered by many as one of the very best RV roof coatings out there, Proguard Liquid Roof can be applied over rubber, metal, fiberglass, wood, and fabric. It’s an excellent product that is highly durable. However, note that if you own a trailer with an Alpha brand EPDM roof, you cannot use this product without first treating your roof with the Proflex Primer.

Made from liquid EPDM, this roof sealant gives you an entirely sealed roof membrane that covers all seams and caulking. Not only does this make for exceptionally easy maintenance, it also means you’ll fix any current leaks and prevent any new ones from developing.

Like all epoxies, this product is a two-part system that once mixed will harden while remaining flexible. This makes it an ideal choice for your RV roof, being able to withstand motion and vibrations, as well as huge temperature fluctuations from minus 60 degrees Fahrenheit up to 300. It won’t crack or dry out and even comes with a five-year warranty, although many users find it’s still in great shape over ten years down the line.

Application is fairly straightforward and this product has the bonus of only needing one coat – so it’s also a great time saver. Coverage is estimated at around 42 square feet per gallon, so, on an eight foot wide roof, you’ll get about five linear feet per gallon. It goes on pretty much like paint and you can apply it with a sponge, roller, or brush.

While this product waterproofs immediately on application, you’ll need a dry 24 hours to apply it. Tack-free in 24 hours, a full cure takes seven days, so it’s not a last-minute job.

Thanks to its one-coat application, five-year warranty, and fantastic reputation, this is by far one of the easiest and most highly recommended RV roof coverings around, making it worth its somewhat elevated purchase price.

Dicor White EPDM Rubber Roof Coating

Dicor White EPDM Rubber Roof Coating

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One of the most reputable brands around for all things RV roof related, Dicor have developed this special EPDM Rubber Roof Coating for use on all RV rubber roofs. Use it to cover your EPDM or TPO trailer roof, it’s a great choice to extend the life of your rubber membrane, eliminating leaks, and reducing maintenance tasks.

This acrylic coating forms a highly durable barrier, completely sealing your RV and protecting against the elements. Thanks to its elastomeric qualities, this coating retains a degree of flexibility, allowing it to flex with the motion and vibrations of your motorhome. It also features excellent fire retardant properties, plus enhanced resistance to UV radiation and harsh weather conditions.

For proper adhesion, it is recommended that you use this RV rubber roof coating with Dicor’s Stage One Cleaner/Activator. Your entire roof must be free from any residue before applying. A minimum of two coats are required, with a coverage rate of approximately one gallon per 125 square feet. So, for a standard 8 x 30 foot roof, you’ll need four gallons of roof coating.

There is a lot of literature and advice on how to best apply this product, this is especially useful for first-time jobs. Applying the product itself is relatively easy, although preparation is very time-consuming. As it self-levels, you’ll find it goes on pretty smoothly. Thanks to its quick-drying formula, this RV acrylic roof coating cures in approximately 24 hours.

While this is a highly effective, premium RV roof coating, the cost per gallon is very reasonable. However, bear in mind that you will need to budget for two coats and the Stage One Cleaner/Activator is also advised.

Dicor Fiberglass RV Roof Coating

Dicor Fiberglass RV Roof Coating

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If your fiberglass RV roof has seen better days, then be sure to consider applying Dicor’s Fiberglass RV Roof Coating. This product is a new and improved formula that has been specially formulated to work with your RV fiberglass roof. As such it is not suitable for use on EPDM or TPO roofs.

Thanks to its 100% acrylic resin coating, this product remains flexible enough to move with your RV roof, protecting as well as improving the appearance of your RV. Its gleaming super white finish will not only knock years off your RV’s looks, it is also highly reflective, helping to keep your interior cooler. This RV roof coating also benefits from mildew and algae-resistant properties, so your roof will stay looking like new for even longer.

One gallon of Dicor’s Fiberglass RV Roof Coating covers approximately 350 square feet and you will need at least two coats for adequate coverage. While the actual product itself is easy to apply, with plenty of useful documentation, getting your fiberglass roof prepared is no easy job. Dicor’s Stage One Fiberglass Clean and Prep is recommended, and you’ll also need to rub up your roof with sandpaper or steel wool in between cleaning.

The second coat is applied just one to two hours after the first, so once you’ve got your prep done, it’s relatively quick. This RV fiberglass roof coating cures in just 24 hours, so your new roof covering will be ready to hit the road in record time.

While it is not the cheapest option, it’s a good quality product from a reputable manufacturer and well worth checking out if you need to cover your fiberglass RV roof.

Dicor Elastomeric Metal RV Coating

Dicor Metal RV Roof Coating

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Specially formulated for RV roofs, Dicor’s Elastomeric Metal RV coating can be used on metal, aluminum, steel, fiberglass, and previously coated RV roofs. Note that this RV roof coating is not recommended for use on EPDM or TPO roofs.

Thanks to its 100% acrylic elastomeric resin composition, this RV roof coating is able to expand and contract with your RV roof, so it won’t crack. Its dazzling Arctic white shade helps to reflect sunlight to keep your interior cooler. Mildew and algae-resistant, this roof coating can help your RV roof to stay in prime condition for longer.

Easy to apply, this product can be cleaned up with just soap and water. However, roof preparation can be quite a time consuming affair. It is recommended that you use Dicor’s Metal Rust Inhibitor Primer before use and that you extensively prepare your metal surface to maximize adhesion. If you don’t sufficiently prepare your roof, chances are you will be disappointed with the results and the longevity of this coating.

You will need to apply a minimum of two coats for adequate protection, with a coverage rate of 200 square feet per gallon. So while this particular RV coating is lower priced than many others, you will need a fair amount to get two full coats. Cure time is a rapid 24 hours.

Fast drying and relatively affordable, unfortunately, this particular RV roof coating can suffer from some durability issues. Given the amount of time that it takes to prepare a metal roof, you may prefer to look at another more durable option for coating your metal trailer roof.

Jetcoat Cool King Reflective Acrylic Roof Coating

Jetcoat Reflective Acrylic Roof Coating

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Reduce your AC energy consumption, saving money and resources by painting your RV roof with Jetcoat’s Cool King Reflective Acrylic Roof Coating. This budget-priced RV roof coating is suitable for most roof surfaces including EPDM rubber roofs, metal, polyurethane foam, and wood.

This white fortified acrylic RV roof coating is highly reflective, keeping your roof and interior cooler. It can also help to reduce your maintenance costs and time spent looking after your roof, as well as effectively sealing any leaks. Thanks to its five-year-long protection, you won’t have to reapply every year, unlike some other less durable RV roof coatings.

Two coats are recommended for the best results and essential for this product’s warranty. Simply use a soft brush, roller, or high pressure sprayer to apply. One gallon covers around 50 to 70 square feet and you can purchase this product in a 4.75-gallon container, which should be plenty enough for most rigs.

On the downside, note that this particular RV roof coating is thinner than a lot of other brands. So, be prepared to add some extra layers if you need a thicker coverage for any staining. It is recommended you wait 6-8 hours between coats, with the product becoming dry to the touch after 2-3 hours.

Less suitable for applying in colder climates, note that you should not apply when the temperature is under 60 degrees F or if it is likely to dip below within a 24-hour period. Aside from these two minor issues, this is a great value for money product.

If you want to spend less, but are happy to spend more time applying an extra coat or two, then this could be the right product for you.

Rubberseal Liquid Rubber Waterproofing and Protective Coating

Rubberseal Liquid Rubber Roof Waterproofing

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Rubberseal Liquid Rubber Waterproofing and Protective Coating is a water-based product that is suitable with use with most RV roofs, including fiberglass, metal, EPDM, and TPO rubber roofs. It has highly insulative properties, as well as waterproofing your rig for enhanced protection.

With an impressive 1500% elongation, this RV roof coating is able to move with the expansion and contraction of your RV. Highly resistant to aging and UV exposure, it won’t crack or fade. It is also mildew-resistant, helping to keep your roof in prime condition for longer. Thanks to its reflective and insulative properties, your RV interior will be cooler in summer and stay warmer in winter – this product is also EPA energy star rated.

Before applying, ensure that your roof is thoroughly clean. If applying to a TPO RV roof, ensure that you repair any cracks or joints first. Two coats are recommended, although you may find that this product goes on pretty thin, so you may want to go over it a couple more times. Application is fairly easy and can be done with a brush, roller, or spray.

You’ll need to wait at least 12 hours between coats, Also, note that this RV roof coating should not be applied when humidity is high, or in temperatures below 45 degrees Fahrenheit. Morning and fair weather application is recommended, as you will need at least four to six hours drying time before your roof coating can stand up to any heavy dew or rain.

Coverage is around 60 square feet per gallon at a thickness of 20 imperial mils. Available in 32-ounce, one, two, or five-gallon formats, this product is good value for money and can be used on a wide variety of RV roofs, including coating pop-up camper foam roofs and metal trailer roofs.

Liquid Rubber RV Roof Coating

Liquid Rubber RV Roof Coating

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Liquid Rubber’s RV Roof Coating can be used on almost all RV roofs, although an appropriate primer is recommended for use with EPDM and PVC surfaces.

Unlike most other RV roof coatings, this one is an environmentally-friendly version, containing no solvents, VOCs, or harmful odors. You can use it indoors or out, without the need for any protective breathing apparatus and it is also safe for use around pets.

Based on a series of elastomeric acrylic emulsions, this product has an impressive elongation of over 1,000% with a tensile rated strength of 180 PSI. This makes it a strong, yet flexible choice, that is perfect for an RV roof. Solar reflective and UV-resistant this coating will help to keep your coach interior cool, as well as resisting fading and sun damage. It is also mold and mildew-resistant, remaining sparkling white for longer.

This RV coating is fairly thin, so you will need at least two to three coats minimum. At least one gallon per 50 square feet is recommended for your final thickness, although you may want to add more for better protection. Fortunately, unlike two-component versions, you can simply close up the pot and use any leftover material later on.

Easy to apply, simply use a roller, brush, or paint sprayer. This product applies just like paint and there is plenty of manufacturer support and advice, including application info and videos. You’ll need to make sure that temperatures are over 50 degrees Fahrenheit to apply this coating, without any rain or damp forecast for 24 hours.

This RV roof coating should cure in around 72 hours, although it can take quite a lot longer. Available in one or five-gallon formats, a five-gallon pail should be plenty for RVs up to 30 feet. On the whole, an easy to apply product at a reasonable price, that is best applied in warmer climates.

Kool Seal Premium 10 Year Premium Elastomeric Roof Coating

KST Roof Coating

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Suitable for use with most roof substrates, including EDPM, metal, polyurethane foam, and exiting elastomeric roof coatings, this RV roof coating by Kool Seal makes an excellent choice if you need to recoat your RV roof on a budget.

Thanks to its high reflectivity, you’ll find that your interior will be much cooler over summer months substantially reducing your energy usage for cooling. Flexible and durable, this coating also ensures your RV remains protected against the elements. It expands and contracts with your roof for superior protection and a long lifespan.

With its 10-year warranty, this acrylic based white roof coating is designed to really last. Two coats are recommended, but as it is fairly thin, you may want to go over it a few times more. Rough or porous surfaces will require extra coats, and it is recommended that you treat all surfaces first with the Kool Seal Base Coat at 50-100 square feet per gallon.

Kool Seal Elastomeric Finish Coat should also be applied at 50-100 square feet per gallon for each coat. You’ll need at least four to six hours drying time before your roof can be exposed to rain or heavy dew, with at least 24 hours between coats or foot traffic.

While this RV roof coating isn’t quite as thick as some of the premium versions, it will reduce your cooling costs and help to save energy. It also is a good budget version, being one of the cheapest RV roof coatings we’ve come across.

Buyer’s Guide to Buying the Best RV Roof Coating

When you’re on the lookout for the best RV roof coating for your rig, there’s plenty of things you’ll need to bear in mind. To help you focus on what you really need from your RV roof coating, we’ve compiled a handy list of the most important considerations you’ll want to focus on.

Price

While RV roof coatings aren’t exactly cheap, they are a lot cheaper than replacing your entire roof. They are also cheaper than redecorating and restoring your interior after a leak. Everyone has their own budget they need to stick to, although you’ll often find that more expensive RV roof coatings require fewer coats which will in turn save you time.

However, before opting for that large five-gallon pail that costs a little more than one-gallon of the premium stuff, just double-check how many coats you would need of each product, factoring in any recommended primers. You may find that some RV roof coatings that cost a lot more per gallon actually work out cheaper if you only need one coat.

Type of Roof

Always make sure that your RV roof coating is compatible with your RV roof type. If it’s not, you could damage your roof membrane – a costly mistake well worth avoiding.

If your coating is incompatible and fails to correctly adhere, you could not only ruin your vacation, but have a huge amount to repair, redecorate, and replace inside your coach due to water damage.

Rubber roof types often throw up the most compatibility issues, so if you have any doubts whatsoever, always double-check with the manufacturer before using. You may need a special primer or a different type of roof coating all together.

Ease of Application

While most RV roof coatings go on pretty easily, a lot like painting, the thicker premium versions tend to be easier to deal with. They also tend to require fewer coats which in turn means less work for you.

Most manufacturers have detailed application instructions with photos or videos available online. Don’t hesitate to check these out to get a better idea of what you’re getting yourself into. Most RV roof coatings can be applied with a brush, roller or sponge.

Another important aspect that you’ll need to pay close attention to is what kind of conditions you’ll need to apply your product in. Some RV roof coatings can only be applied above 50 degrees Fahrenheit for example, while others require 24 hours rain free or low humidity.
These constraints can rule out applying certain RV roof coatings in certain areas for whole months at a time.

Cure Time

Some RV roof coatings are very quick-drying and have rapid full cure times of around 24 hours. Others can take around seven days.

If your RV roof coating requires several coats, this can also affect your cure time, as can humidity levels and the weather. For example, some products are to be applied with some direct sunlight available for at least part of their cure time, or else the curing process can take considerably longer.

For a better idea of how practical a particular version will be for your needs, check out how quickly it becomes waterproof and hard to the touch. While some products have a long full cure time, they can be exposed to water just a few hours later. As all RV roof coatings are different, be sure to pay attention to each model’s specifics.

Non-toxic Materials

When possible, it is always preferable to purchase and handle non-toxic materials. If you are coating your RV roof in storage, then you may need to wear breathing protection apparatus, or if you have any underlying health conditions.

Opting for non-toxic, environmentally-friendly versions are also safer for nature, plus other people and any animals who may be around when you’re treating your roof.

Durability

Highly durable versions will last you anywhere between 5-10 years, although you will still want to do some regular roof maintenance and the occasional reapplication from time to time.

If durability is a real issue for you, for example if your RV is stored outdoors in harsh weather conditions, then we recommend paying extra for a highly durable silicone RV roof coating, or one that comes with a specific warranty for five or ten years.

UV resistance

It’s important to ensure that your RV roof coating is highly UV-resistant. While it goes without saying that all roof coatings need to be UV-resistant, it pays to double-check. Overtime UV radiation can degrade your RV roof, causing it to crack and fade, leading to leaks, hence the importance of using a good quality product that is resistant to UV rays.

Water Repellency

All RV roof coatings have good degrees of water repellency. However, if your roof isn’t in the best of shape to start with, you could be faced with a few areas where water tends to pond.

If this occurs and you don’t have the time, knowledge, or inclination to sort it out now, then you’ll want to opt for a silicone or urethane roof coating, as ponding water can cause acrylic ones to peel off.

Types of RV Roof Coating

Wondering what are the differences between each type of RV roof coating? Here’s the lowdown on the main properties of each type.

Urethane Coating

Durable and hard-wearing, urethane RV roof coatings are more expensive than acrylic versions, yet cheaper than their silicone equivalents. They are also reflective and UV-resistant, with improved waterproofing properties over acrylics.

Note that urethane RV roof coatings tend to give off a strong odor throughout installation and they often require two coats.

Acrylic Coating

Generally the cheapest type of RV roof coating, acrylic coatings are also reflective, UV-resistant, and provide good leak protection. They tend to be a little less durable than other coatings, although as they are cheaper, you may find it more economical to pay less and replace more often.

On the downside, if you have any areas of ponding water, acrylic coatings are likely to peel in these areas, causing leaks. So, make sure your roof is in good shape before applying. Additionally, you may need to use a primer and occasionally fabric reinforcement with an acrylic roof coating.

Silicone Coating

Silicone RV roof coatings are the most expensive on a per-gallon basis, however, as they only require one coat and no primer, they can actually work out cheaper than other types on a per-project basis. Silicone roof coatings are highly resistant, reflective, able to withstand huge temperature fluctuations, as well as having excellent waterproof qualities. They also have the distinct advantage of remaining extremely flexible so they won’t crack or degrade.

On the downside, silicone can hold onto dirt more noticeably than other types of RV roof coatings, although your roof will look like new again after a quick hose down or a light shower.

Also, bear in mind that you can only recoat silicone with silicone as other materials will not stick to it.

Rubber Coating

If you have an EPDM or a TPO rubber roof, then it makes sense to use a rubber RV roof coating that is specifically designed for use with these roof types.

Note that you will often require a specific primer and that not all rubber roofs are compatible with all RV rubber roof coatings, so be sure to double-check suitability before applying.

Rubber RV roof coatings hold up well to ponding water. They are UV-resistant and highly durable, with a good range of temperature tolerances, as well as waterproofing your roof even before they are fully cured.

Liquid Coating

Liquid EPDM RV roof coating is very similar to your traditional EPDM makeup. Liquid rubber RV roof coatings are generally easy to apply and they coat your entire roof in one seamless, waterproof membrane.

Suitable for use with a variety of different roof types, only one coat is required, saving your time and money. They are also highly durable, can tolerate both high and low temperatures, UV-resistant, and waterproof on application.

Fiberglass Coating

A popular choice for many travel trailers, RV fiberglass roof coatings typically utilize acrylic fiberglass resins for extra flexibility. They stand up to all weather conditions and won’t crack or peel with the sun. As they’re able to contract and expand with your roof’s movement, fiberglass coatings provide a high quality durable finish

Final Thoughts

There are an ever increasing number of RV roof coatings available. To ensure you find the best RV roof coating for your motorhome, be sure to focus on your roof type, as well as ease of application and any other constraints such as coverage and cure times.

If you are looking for a premium version, the highly popular Proguard Liquid Roof is a great option. This product requires just one coat, saving you time, money and effort.

On the other hand, if you’d prefer a more reasonably priced, middle-of-the-road version with a rapid cure time, we suggest going for Heng’s Rubber Roof Coating. Alternatively, for a budget application with a long warranty, you can’t go wrong with Kool Seal’s Elastomeric RV Roof Coating.

Whatever your needs, you’re sure to find your perfect match right here in our selection.