7 Best RV Roof Sealant Options

It is important to know what the best RV roof sealant is to protect your RV from leaks and water damage . Plus to extend the life of your RV roof .



We lived full time in our RV for 8 years so we have some experience! Below we share our top picks for RV roof sealant and details on each. Including, why we picked these. Plus tips on what to look for when selecting your RV roof sealant. If you are living in your RV or just planning an RV trip it is important to make sure your RV roof is good to go!



Top RV Roof Sealants




Top Pick: Dicor Self-Leveling Lap Sealant



Best Liquid Option: Liquid Rubber RV Roof Coating



Tape Option: Eternabond RoofSeal




Why Do You Need RV Roof Sealant?



Most RV roofs are made via a truss system. The truss system is several pieces of wood that are glued, stapled, and gusseted together with metal brackets to make a rafter. This approach is cheaper than real wood and also lighter. Which keeps the RV weight as low as possible.



This is a major design requirement for RV’s. And is why RV manufacturers try to build an RV roof with a specific roof material as inexpensively and as light as possible.



Due to how the roof is constructed. Plus the nature of RV travel causing continuous stress on the RV unit, ongoing roof inspection, and regular repairs are necessary.



The roof protects the entire unit, and a roof leak can destroy the entire RV with water damage, mold, and deterioration.



Vibration and travel stress can cause shifting of the RV frame. Extreme weather conditions (think Arizona heat, Oregon rains, Florida salt breeze, or Minnesota sub-zero temps) can damage the initial factory sealant on the roof seams. Either by UV rays damaging the composition of the sealant (why UV-resistant sealant is good to have) or by temperature fluctuations causing it to expand and contract over time.



AC unit and vents are also sealed with RV roof sealant, which dries and cracks over time.



New RV Owners



New RV owners are not always informed about the required regular roof maintenance at the time of purchase. RV manuals do share ways to protect your RV (but who reads those :)). Many RV manufacturers might even void their warranty if regular maintenance is not performed. It is the RV owner’s responsibility to check the roof regularly for the condition of the seams and sealant.



Seeing RV roof issues can be challenging. Unless a leak presents itself. However, RV owners should show do their due diligence. Being proactive in their RV roof care. Just like one has to attend to home improvement tasks when you are a homeowner. RV maintenance is much the same.



RV Roof Sealant Options







There are several different options when it comes to RV roof types of sealant. Let’s take a closer look at each:




Initial factory sealant



Post-market reapplication products

Liquid



Tape



Permanent coating





Unconventional make-shift camper roof covers (not a true RV roof sealant)




Overall cost, ease of application, the type of RV roof, and general use of RV are all factors that contribute to the choice of RV sealant used.



As more and more individuals enter the RV market, especially full-time, more customers are looking at ways to streamline RV roof resealing to avoid loss of RV use due to repairs or water damage. With individuals treating their RV as a home, a long-term solution is often more lucrative, and options like Roof Armor are a great alternative to ensure the roof is sealed properly for the long haul.



By taking a closer look at each option, one can better decide which choice is best for their personal situation.



Initial factory sealant



When purchasing a brand-new RV, the roof is usually sealed with one of three major options:




Standard EPDM/TPO/Vinyl



Standard Fiberglass



AcryPro RV Roof System (or similar option)




The Standard EPDM/TPO/Vinyl is about $10,000-18,000 of the overall unit cost. It needs frequent maintenance and resealing. Must go to the installer to get repaired (with long wait times). Has a 10-year limited warranty. And eventually will need to be replaced. This EPDM roof consists of EPDM rubber, which is an extremely durable synthetic rubber roofing membrane (ethylene propylene diene terpolymer).



The Standard Fiberglass is about $11,500-20,000 of the overall unit cost. Needs frequent maintenance and resealing. Must go to the installer to get repaired (with long wait times). Has a 10-year limited warranty. Must eventually be replaced. (Source)



The AcryPro RV Roof System has no replacement, no maintenance, lifetime material, and labor warranty. It is installed where you are. It is the last RV roof you will ever need.



The hard-top options like AcryPro or Roof Armor are usually custom after-market add-ons, not standard manufacturer’s options.



Post-market reapplication products



The post-market reapplication products fall into three main categories. Liquid, tape, or permanent coating (which, to be fair, is only applied once after the unit leaves the manufacturer).



Self-leveling sealant (like Dicor products). Are applied similarly to a thick silicone or caulk or weather-proof seal tape like Eternabond for a flex seal.



Liquid sealants come in caulking tubes. While others come in 1-gallon buckets when coating 1 gallon of surface is all that’s needed.



The permanent sealant comes in 1-5 gallon buckets to allow for a coating of the entire roof. Creating a liquid rubber RV roof coating. The coating will last for the entire life of the RV. Similar to the roofs of mobile homes.



Customers tend to lean toward a solution that offers an easy application and doesn’t break the bank in the process.



Unconventional make-shift camper roof covers (not a true RV roof sealant)



This third method is hardly an RV roof sealant. However, it should be mentioned since many individuals choose this method to protect their RV roof, until they can take care of their roof leaks. This is either to strap down a tarp over the roof. Use duct tape, or park the RV under an awning/carport. All of these options are temporary and are not considered true repairs to the RV roof.



Top Things To Consider When Looking For RV Roof Sealant




Quality/Longevity



Cost



Ease Of Application



Brand



Reviews



Long-term VS short-term RV Roof Sealant




The initial RV roof inspection should happen prior to taking ownership. Even new RV units can start having roof issues. Especially if the quality control standards of the manufacturer are sub-par. The RV manual states to check the roof every six months and to reseal annually. Take note: You should adjust this timeline based on where you live and the wear and tear your roof takes.



If there was a storm or your RV sat uncovered in 130F sun for a week or two, events like this are great opportunities to check on the roof condition and to examine the sealant seams to avoid future roof leaks or roof repairs.



7 Top Recommended RV Roof Sealants







Below are the current Top 7 recommended RV roof sealants, according to market research, customer feedback, and RV “veteran” recommendations.




Dicor Self-Leveling Lap Sealant



Eternabond RSW-4-50 Roofseal Sealant Tape



Geocel ProFlex RV Sealant



Sashco Through The Roof Sealant



3M Marine Adhesive Sealant 5200



Beech Lane RV Permanent Repair Tape



Heng’s Rubber Roof Coating



Liquid Rubber Leak Repair Sealant




Top Pick



Hands down, Dicor Self-Leveling Lap Sealant , wins the Top Pick for RV roof repairs. Used by RV service centers US-wide, this self-leveling sealant does the job, is cost-effective, and seals up all the nooks and cracks. It is weather-resistant and dries fairly quickly.






















Dicor 501LSW-1, RV Rubber Roof Sealant Self Leveling Caulk, White, 4 Pack

Creates a secure, secondary seal along the roof’s edges, air vents, vent pipes and screw heads Adheres firmly to aluminum, mortar, wood, vinyl, galvanized metal, fiberglass and concrete






$38.91



Buy on Amazon









Best Liquid Option



Liquid Rubber RV Roof Coating takes first place in this category. Easy to apply, great coverage, and solid performance when it comes to sealing the RV roof to waterproof it.



















Liquid Rubber RV Roof Coating – Solar Reflective Sealant, Trailer and Camper Roof Repair,…

FLEXIBLE RV ROOF COATING – Solar reflective, cool roof & UV resistant, Final membrane has over 1000%… PROTECTIVE SEALANT FOR – RV roofs, metal roofs, flat roofs around the home, mobile homes, campers,…






$89.95



Buy on Amazon









Best Tape Option



Eternabond RV Roof Repair MicroSealant UV Stable Roof Seam Repair Tape, for waterproof and airtight repair, as it doesn’t only fix roof leaks and close up seams but also seals any small holes in the external RV walls to protect from the weather. This tape is strong!









Sale









EternaBond RoofSeal White 4″ x50′ MicroSealant UV Stable RV Roof Seal Repair Tape | 35 mil Total…

MULTI-USE: Perfect for use on metal buildings, trailer/RV roofs and sides, drain pans, drain pipes,… NO ADDITIONAL SEALING REQUIRED: Aluminum backing, combined with a layer of advanced MicroSealant,…





$62.99
−$4.70

$58.29



Buy on Amazon









Dicor Self-Leveling Lap Sealant






















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

Creates a secure, secondary seal along the roof’s edges, air vents, vent pipes and screw heads Adheres firmly to aluminum, mortar, wood, vinyl, galvanized metal, fiberglass and concrete






$38.91



Buy on Amazon









Features:




Dries fast



Fairly cost-effective



Weather-proof



Self-leveling (minimizes messes)




Application: After the roof examination, scrape off the old sealant and wash the surface of the roof. Use Dicor to reseal any exposed seams or cracks. Cut off the tip of the sealant tube and use a caulking gun to apply beads of the sealant to the area. Since the material is self-leveling, there’s no need to spread it.



This works great on Standard EPDM/(most)TPO/Vinyl and Standard Fiberglass roofs where seams need to be resealed.



The consistency is that of a thicker silicone, and it comes in a silicone tube application. You will need an Exacto knife to cut open the tip of the tube and a caulking gun to use the sealant. For any mess wipe-up, have some baby wipes or a rag ready.



Pros:




Cost-effective



Easy to use



self-leveling




Cons:




Old sealant might be a bit tricky to remove




Eternabond Roofseal









Sale









EternaBond RoofSeal White 4″ x50′ MicroSealant UV Stable RV Roof Seal Repair Tape | 35 mil Total…

MULTI-USE: Perfect for use on metal buildings, trailer/RV roofs and sides, drain pans, drain pipes,… NO ADDITIONAL SEALING REQUIRED: Aluminum backing, combined with a layer of advanced MicroSealant,…





$62.99
−$4.70

$58.29



Buy on Amazon









Features:




Easy to store



Versatile application



Weather-proof




Application: After the roof examination, scrape off the old sealant and wash the surface of the roof. Use Eternabond to reseal any exposed seams or cracks. It can be a bit challenging to try to apply the tape evenly and then try to cut the section off the roll.



This works great on Standard EPDM/(most)TPO/Vinyl and Standard Fiberglass roofs where seams need to be resealed.



The tape is really thick and sticky. You can use an Exacto knife to carefully cut off the section from the roll.



Pros:




Great seal



Easy to use




Cons:




The initial cost might be a bit high (you must purchase a whole roll)



Unforgiving (it really sticks, even if you make a mistake)




Geocel ProFlex RV Sealant



















Geocel 28101V Pro Flex White RV Flexible Sealant – 10 oz. (GC28101)

Crack resistant Exceptional flexibility






$17.88



Buy on Amazon









Features:




Great sealant bond



Weather-proof



Easy application




Application: After the roof examination, scrape off the old sealant and wash the surface of the roof. Use Geocell to reseal any exposed seams or cracks. This sealant is a competitor to Dicor and comes in clear or white colors.



This works great on Standard EPDM/(most)TPO/Vinyl and Standard Fiberglass roofs where seams need to be resealed.



The sealant sets up quickly, dries fast, and remains flexible so that it does not warp and crack during travel.



Pros:




Great sealant



Easy to use




Cons:




A bit challenging to use with a caulking gun



Sets too fast (don’t apply more than 2 ft at a time)




Sashco Quart Clear Roof Sealant



















Sashco Quart Clear Roof Sealant,14003

Elastic – flexes with temperature changes and wind Ultra-clear and stays clear – will not yellow over time






$32.03



Buy on Amazon









Features:




Lasts 20 times longer than roof cement



Tolerant to extreme temperatures



Does not crack or go brittle




Application: After the roof examination, scrape off the old sealant and wash the surface of the roof. Use Sashco to reseal any exposed seams or cracks. The sealant comes in several colors, most commonly used in clear or black (on asphalt shingle roof repairs).



This works great on Standard EPDM/(most)TPO/Vinyl and Standard Fiberglass roofs where seams need to be resealed.



Use a paintbrush or a roller to apply the sealant and let it dry. The sealant can be painted over with latex paint 24 hrs after application, and it adheres to galvanized metal, aluminum flashing, copper, PVC, ABS, neoprene, plastic, brick, block, mortar, concrete, cement board, acrylic, asphalt, wood, steel, painted surfaces, etc.



Pros:




Great seal



Easy to use



Permanent




Cons:




The initial cost might be a bit high



Unforgiving (dries fast, difficult to clean up mistakes)




3M Marine Adhesive Sealant 5200









Sale












3M TALC 5200 Marine Adhesive Sealant (06504) Permanent Bonding and Sealing for Boats and RVs…

USE WHAT THE PROS USE – Extremely strong adhesive sealant retains strength above or below… BONDS PERMANENTLY – Ideal for sealing, bonding and attaching on the interiors of boats and RVs, or…





$29.48
−$6.67

$22.81



Buy on Amazon









Features:




Easy application



Brand recognition



Broad application (RV and marine, assuring 100% waterproofness)




Application: After the roof examination, scrape off the old sealant and wash the surface of the roof. Use 3M Marine Adhesive Sealant to reseal any exposed seams or cracks.



This works great on Standard EPDM/(most)TPO/Vinyl and Standard Fiberglass roofs where seams need to be resealed.



Use an Exacto knife to cut the tip of the sealant and use a caulking gun to apply the sealant.



Pros:




Great seal



Easy to use



Seals even against salt water




Cons:




Pricier than other brands



One week cure time




Beech Lane RV Permanent Repair Tape









Sale









Beech Lane RV Roof and Leak Permanent Repair Tape 4″ x 50′, Permanently Stops Camper Roof Leaks, UV…







$29.99
−$5.32

$24.67



Buy on Amazon









Features:




Easy to store



Versatile application



Great sealant bond




Application: after the roof examination, scrape off the old sealant and wash the surface of the roof. Use the Beech Lane RV Tape to reseal any exposed seams or cracks. It can be a bit challenging to try to apply the tape evenly and then try to cut the section off the roll. This tape is a competitor to Eternabond.



This works great on Standard EPDM/(most)TPO/Vinyl and Standard Fiberglass roofs where seams need to be resealed.



The tape is really thick and sticky. You can use an Exacto knife to carefully cut off the section from the roll.



Pros:




Great seal.



Easy to use.



It is much cheaper than Eternabond.




Cons:




Unforgiving (it really sticks, even if you make a mistake).




Heng’s Rubber Roof Coating









Sale









Heng’s Rubber Roof Coating – 1 Gallon

Designed for use over RV rubber roofs, at seams and tears and to seal vents, air conditioners, etc. It is UV resistant and expands and contracts with roofs





$69.50
−$3.49

$66.01



Buy on Amazon









Features:




Great sealant bond



Weather-proof



Easy application



Comes in 1 quart or 1 gallon




Application: after the roof examination, scrape off the old sealant and wash the surface of the roof. Use Heng’s to reseal any exposed seams or cracks.



This works great on Standard EPDM/(most)TPO/Vinyl and Standard Fiberglass roofs where seams need to be resealed.



Use a brush or a roller to apply the sealant to the roof areas that need to be resealed and covered.



Pros:




Great seal.



Easy to use.




Cons:




A bit pricey.



It can get messy during application.




Liquid Rubber Leak Repair Sealant



















Liquid Rubber RV Roof Coating – Solar Reflective Sealant, Trailer and Camper Roof Repair,…

FLEXIBLE RV ROOF COATING – Solar reflective, cool roof & UV resistant, Final membrane has over 1000%… PROTECTIVE SEALANT FOR – RV roofs, metal roofs, flat roofs around the home, mobile homes, campers,…






$89.95



Buy on Amazon









Features:




Solar reflective



Weather-proof



Easy application



Available in 1 gal or 5 gal buckets




Application process: after the roof examination, scrape off the old sealant and wash the surface of the roof. Use Liquid Rubber to reseal any exposed seams or cracks. You can apply this on the entire roof to create a permanent shell coating.



This works great on Standard EPDM/(most)TPO/Vinyl and Standard Fiberglass roofs where seams need to be resealed or for roof coat.



Use a brush or a roller to apply Liquid Rubber evenly onto the roof.



Pros:




Great seal



Easy to use




Cons:




Pricey



Messy




There you have it from roof types to maintenance, these are the 7 RV roof sealants we recommend! No matter what be sure to stay on top of your RV roof maintenance so you don’t end up with a huge problem with your RV.



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