The Best RV Roof Coating

Traveling in a recreational vehicle (RV) is a great experience. This is probably why ownership of RVs has been steadily rising. Unfortunately, most owners tend to take their RV's roof for granted. Luckily, the best RV roof coating can help keep your vehicle working longer and prevent expensive repairs.

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3 Different Types Of RV Roofing

There are several different types of RV roofs – fiberglass, metal, and rubber.​

Rubber Roof

This is the most common RV roof type. There are two different types of rubber roofs – the EPDM (Ethylene Propylene Diene) roof and the TPO (Thermal Polyolefin) roof. Rubber roofs are easy to determine because they're soft to the touch and are usually colored white. However, some older RV models might have tan or off-white rubber roofs. One disadvantage of this roof is that it develops a chalky texture as it ages.


Fiberglass Roof

This type of RV roofing is hard, durable and smooth. It's not as popular with RV owners because of the expense and weight it adds to the vehicle. But there are those who prefer it because it's in low maintenance. However, fiberglass RV roofs tend to get slippery when wet, so it can be challenging.​


Metal Roof

This type of roofing is rarely used in RVs. Like fiberglass, a metal or aluminum roof is heavy but rarely needs to be maintained. It's easy to distinguish by its silver metallic color and the support beams that are interspersed every two feet or so.​

Importance Of Taking Care Of Your RV's Roof

Most RV owners forget about inspecting or cleaning their RV's roof before storage or going on a trip. But neglecting to check and clean the roof and its seams regularly could lead to water damage and other expensive repairs. So if you want to get the most of your RV, regular checking and cleaning are needed. There might even be times when you need to apply the best RV roof coating on it.​

Here are some tips on how to maintain your RV's roof:​

  • Safety First: You have to go up your RV's roof in order to check and clean it. But you have to be very careful when doing this as some roofing materials tend to be very slippery or are not designed to be walked on. The lack of ladder or roof access means your RV's roof is not made to be walked on. You might have to use several pieces of plywood to distribute your weight. Check your owner's manual to be sure or tap an RV service to work on the roof.
  • Clean on a Regular Basis: As a rule, RV roofs should be cleaned 3 to 4 times a year. However, maintenance should be done more often if RV is usually parked under trees. Regular cleaning will prevent early deterioration and buildup of algae or mould. It can also lessen stains caused by bird droppings and tree sap. A regular cleaning schedule will also minimise streaking of sidewalls.
  • Use the Right Cleaning Materials: Check your owner's manual for the type of cleaning agents or soap appropriate for your RV's roof. Refrain from using cleaning materials that contain citric-based acids, harsh abrasives, or petroleum solvents on rubber roofs.
    For normal cleaning, start by spraying the roof with clean water to get rid of dust and dirt. Next, apply your cleaning agent and gently scrub around in circles. You should use a bristle brush, cloth, sponge or any non-abrasive material. Rinse with clean water to minimize residue build-up on the roof or sidewalls. You should also gently rinse the sides of your RV. Be mindful of the paint or decals. Make sure you don't leave soapy streaks on the walls.
  • Carefully Inspect the Whole Roof: Scan the roof for any signs of deterioration, like cracks, tears, punctures, or areas that might have lifted away from the material. You should also check the holding tank vents, air conditioner shroud, or refrigerator roof for any damages or breaks in the seal. Proper maintenance of seals is crucial in preventing moisture from entering the RV and causing mold, rot, or mildew. Inspections of your RV roofing should be done at least every six months.

Here's a walkthrough on how to clean an RV rubber roof:

Types Of RV Roof Coating

The roof is the most vital part of your RV, and the best RV roof coating can help keep your vehicle in tip-top shape. However, not all roof coatings are the same. Here are the different types of roof coatings available to RV owners.​

  • Aluminum Coating: This is one coating that's rarely used by RV owners. Aside from adding extra weight to the vehicle, RV roofs in today's models are rarely made from aluminum.
  • Fiberglass Coating: This type of roof coating is also rarely used. It adds weight to the RV, is more expensive and hard to install. But it is low maintenance and can save RV owners money in the long run.
  • Liquid Coating: This is the best RV roof coating for those who want to prevent roof corrosion and protection from ultraviolet rays. Because liquid roof coating is water repellant, it prevents the development of rust.
  • Rubber Coating: Preferred by most RV owners, this coating is classified into two types – those made from ethylene propylene Diene monomer and thermal polyOlefin. The two types are maintained differently so owners should check their manuals to know which is the best for their RV.

Aside from the coating, sealing your RV roof is also crucial to its maintenance. Here's how you do it:

5 Best RV Roof Coating Products On The Market Today

Heng's Rubber RV Roofing Coat has been developed for use with RV rubber roofs. It can also be used to seal tears and seams of air conditioners and air vents. The product is also known for giving a bubble-free coating. Heng's Rubber Roofing Coat is safe to use and environmentally friendly. It's also easy to apply and has the consistency similar to house paint. It glides easily on the surface material and dries with a smooth finish.

Product weighs around 5 pounds and comes in dimensions of 6.5 x 11.9 x 7.5 inches. Heng's rubber coating is also available in gallon size.


Pros

  • The Product is UV resistant, so RV owners are protected against the harmful rays of the sun
  • The Product is waterproof
  • RV coating contracts and expands with the roof depending on the degree of heat
  • Product bonds very well to rubber
  • Economical. One gallon can be enough for two coating on a 20-foot trailer
  • Easy to apply and has a similar consistency to house paint, only thicker.

Cons

  • Product can wear out fast because of heat contraction and expansion
  • Can take up to seven days to fully cure
  • Chance of water residue forming on the coating surface
  • Limited shipping
  • Minimal coverage.

This Kool Seal roof coating touts high-end waterproofing capacity, making it ideal for use in RV vents. The product also protects against light reflection, so the amount of heat penetrating the RV is reduced. It has a high bond strength so it doesn't disintegrate. This coating can also prevent chemicals from reacting on the RV's roof, thus reducing the amount of wear and tear.

Product is available in one-gallon size. It weighs 11 pounds and comes in at 13.5 x 8 x 13.5 inches.


Pros

  • Coating provides good protection against moisture
  • Product is non-toxic and environmentally safe
  • Has great sound absorption qualities
  • Resistant to development of algae and mildew
  • Product stands up well to standing water and is UV resistant
  • Easy to apply.

Cons

  • Doesn't contract or expand with the roof
  • Provides limited surface coverage
  • Prone to wearing out
  • Limited shipping.

One of the best RV roof coating products that protect against leaks and water entry is the Pro Guard Liquid RV Roof Coating. It's designed to extend the life of your RV roof. It reflects sunlight, protects against dangerous UV rays, and cools down RV interiors. Product waterproofs quickly upon application and stands well against standing water. Once cured, Pro Guard Liquid Coating is not easily damaged by freezing or other adverse weather conditions. It's easy to apply and one coating is enough protection.

Pro Guard Liquid RV roof coating is one of the most reliable roof products around. A gallon of Pro Guard Liquid RV roof coating is enough to cover 42 to 46 square feet. And without the need for a primer, it can save you more money in the long run.


Pros

  • Water repellent
  • Provides great protection against sun glare and UV rays
  • Offers great temperature range. Can protect RV in temperatures as low as -40 degrees Fahrenheit and can stand temperatures over 300 degrees Fahrenheit
  • Chemical in coating pushes air to the surface, reducing cracks and air pockets in the coating
  • Product outperforms elastomeric and urethane coatings
  • Product offers 10-year one coat warranty
  • One gallon can cover 42 square feet
  • Easy to apply; one coat application already gives good coverage.

Cons

  • Coating can be as thick as a pancake
  • Chance that product will put out fumes, wearing protective gear during application is recommended
  • Shipping weight reaches 40 pounds
  • Limited shipping.

This is a flexible product that can be used for all types of RV roofing. It provides excellent protection against standing rainwater and is UV resistant. Coating provides insulating effect in vehicle, thereby reducing heating costs. Product has good coverage and one gallon is enough to cover about 125 square feet. To ensure proper adhesion, products should be used with Dicor Rubber Roof Cleaner/ Activator. This brand of RV roof coating is a light 12.5 pounds and comes in at 1.3 x 11 x 1.1 inches.


Pros

  • Provides excellent water repellent capacity
  • Protects against sun reflection and UV rays
  • Products can be used on different types of RV roofs
  • Lightweight
  • Easy to apply and quick drying.

Cons

  • Requires about two coats to ensure good coverage
  • Product's consistency varies
  • Several gallons required to cover the whole roof
  • Limited shipping.

If you're looking for a product that can withstand any weather, then the KSTO63600-20 is the best RV roof coating option for you. It is developed with the intent of reflecting about 90% of the sun's deadly rays. It also contracts and expands depending on the level of heat.

The coating is quite thick and forms a durable blanket for your RV roof. It stands well against rainwater, algae and mildew. What's more, it's environmentally friendly and has the capacity to absorb sound, thus decreasing noise levels in your RV. KSTO63600-20 Elastomeric coating can easily cover an area of 380-475 square feet of metal roofing and about 225 square feet of concrete roofing. Product dimensions are 12 x 14 x 12 inches.


Pros

  • Product is designed to protect against 90% of harmful UV rays
  • Also designed to contract and expand with the RV roof
  • Shows good resistance to rainwater, algae, and mildew
  • Durable
  • Easy to apply and has a smooth finish
  • Drying time is quicker at 5 hours.

Cons

  • Provides little coverage on concrete roofing
  • Can result in bumps in the finished application. Instructions should be read carefully before the product is applied
  • Product is heavy at 54 pounds
  • Limited international shipping
  • Cannot be shipped to Alaska or Hawaii

Conclusion

An RV is a great way to travel and explore the country, something that a steadily increasing number of people are realizing. But if you want to enjoy your RV for years, you have to inspect, clean, and repair your RV's roof regularly.

There are several different types of RV coatings to choose from, all with their own distinct features and benefits. If you're looking for the best RV roof coating product for your vehicle, look for one that's easy to apply, environmentally friendly, non-toxic and can withstand various weather conditions.

Taking good care of your RV is important, and knowing the different kind of RV roof coatings is crucial in making the right choice. The products mentioned here are some of the most effective in the market today.

Did you find this list informative? We would love to hear from you! You can also share this article with fellow RV enthusiasts to help them care for their RV.​

The Best RV Roof Coating
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