travel trailer roof repair tape

Roof Online

Best RV Roof Repair Tape • Top 6 Roof Sealant Tapes (2024)

Best Roof Repair Tapes for Sealing Leaks on RV Roofs, Metal Roofs, and Flat Roofs on Buildings

By Jack Gray , Roof Online Editor • Last updated December 31, 2023

Table of Contents

Introduction, how do we know about roof repair tape, roof sealant tape compatibility, roof surface preparation tips, what size roof sealant tape to use, tools you’ll need to apply roof repair tape, eternabond roofseal sealant tape, thermacote roof repair tape.

• APOC Incredible® Repair Tape and Sealant

EternaBond AlumiBond Sealant Tape

Eternabond webseal roof sealing and repair tape, cofair quick roof extreme rv roof sealant tape, related articles, external resources.

Roof repair tape, also known as roof sealant tape, is a really surprisingly good way to fix a roof. Roof repair tape is often the perfect thing for simple DIY repairs.

High-quality roof repair tape is not a gimmick or a cheap imitation of a real professional construction material like so many other DIY home repair products seem to be.

Roof repair tape can be used on RV roofs, mobile homes, campers, and, of course, buildings. You can also use it to patch gutters, cracked skylights, and damaged HVAC units and ductwork.

It creates a permanent water-tight seal and is absolutely perfect for emergency repairs.

Roof tape is designed for single-ply roof membranes like TPO and EPDM, all kinds of metal roofing, wood, glass, polycarbonate panels, fiberglass, concrete, and more. You can even use it on asphalt shingle roofs if you prepare the surface properly.

We think anyone who might need to fix a roof leak should keep a roll on hand for emergencies. This goes for homeowners, property managers, building engineers, RV owners, and anyone else who has a roof to take care of.

Modern roof repair tape forms an excellent waterproof seal with most roofing materials . And the tapes are really long-lasting. They will often last just as long as the roofing material itself, so patches made with repair tape can be considered permanent.

Well, first of all, we use roof repair tape and we’ve been using it for decades. We’ve gone through a lot of tape.

We’re professional roof consultants. Our job is to look out for our clients’ roofs.

We make sure their roofs are designed, installed, maintained, repaired, and replaced using industry best practices and the best, most appropriate materials (optimizing for budget constraints, of course).

We’ve overseen thousands of roof leak repairs, choosing materials and selecting roofing contractors.

We write the repair instructions for the roofers to follow, and we inspect the work to make sure it’s done right.

When there’s an active leak and it’s urgent, we often make emergency repairs ourselves.

We keep up to date on the best roofing techniques and the best roofing materials.

In addition to decades of practical roofing experience, we attend seminars, classes, conventions, and product presentations and we research, research, research.

If there’s a new best roof repair tape out there, we’d know about it.

We started this website to help homeowners and property managers with their roofs, but something unexpected happened.

We started getting emails from people asking for advice on the best way to repair leaks on their RV roofs.

At first we thought this was a little strange because we had never thought about RV roofs before.

So we did a little research and found out that while there are about  5.9 million commercial roofs  in the country, there are almost  twice that many  RV roofs!

So many more leaky roofs out there than we thought!

We saw a lot of bad roofing advice and recommendations being offered on websites targeting RV owners.

It was obvious that these website authors, whatever they knew about RV’s in general, didn’t really understand roofs very well.

The roofing materials, such as TPO , PVC, EPDM, aluminum, and steel, that are used for trailers, campers, and RV roofs are the same as the ones used for the flat roof membranes on a building. They are also generally put together to form the roof in the same way.

RV roofs are made out of the exact same materials as commercial low-slope roofs, and everything we know about best roofing practices, roofing materials, and roof leak repair applies to RV roofs as well.

And it turns out that the best RV roof repair tapes and the best flat roof repair tapes are actually the same products.

Roof sealant tape is incredibly sticky. It may be the stickiest thing you’ve ever dealt with. Once you apply it to a compatible substrate, it’s definitely not coming off without a lot of careful work.

Some roof repair tape manufacturers actually advertise their tapes by saying “It will stick to ANYTHING!”.

But if you look at a roof repair tape product data sheet from one of the more honest manufacturers, you will see “compatible substrates” listed, and no, the tape is not guaranteed to stick to everything.

These roof sealant tapes will almost never bond properly if used over silicone roof sealant coatings or caulk.

Using sealant tape on flexible PVC roof membranes is also discouraged, as the tape adhesives are generally incompatible with the plasticizers used in PVC membranes to keep the material flexible.

All roof repair tapes will definitely stick to PVC membranes, and they will definitely stop a leak in a PVC roof. It’s just that if you use these sealant tapes on a PVC membrane, you can expect your patch to eventually fail prematurely.

Our list does include one roof tape that specifically has PVC listed as a compatible roofing material in its product data sheet. If you have a PVC roof, you might want to try that one.

Roof sealant tape should work perfectly well on rigid or hard PVC like PVC house trim, PVC pipe, or PVC gutters.

It’s always a good idea to check the product data sheet for the specific actual product you want to use in order to confirm that it will be compatible with whatever you want to use it on.

Important! Clean the Repair Area First

When you apply a roof repair tape to a roof which has been in service for any amount of time, it is  absolutely vital  that you remove the dirt, dust, and grime that invariably accumulates on its surface.

It is very common to see  failed repairs  on metal or single-ply membrane roofs, even when the repairs were made by professional roofers.

This is almost always because they did not clean the surface of the existing roofing material in the repair area or because they didn’t  clean it thoroughly enough .

Side note: It’s very frustrating when you hire a highly-respected contractor to repair a roof and then when you inspect the patches a week or a month later, they’re already delaminating and come right off if you tug on them.

We’ve seen this happen quite a few times (with different contractors), and it was always because the roofers they sent didn’t properly clean the substrate first. Yes, the contractor has always fixed the problem for us at no charge after we called and emailed them a picture, but it’s an unnecessary hassle.

Even a membrane that looks fairly clean will often have a layer of grime adhered to the surface. Aged black EPDM will always have a hard-to-see layer of fine carbon powder on it.

That’s the real issue here. You might think the roof area is clean, but it’s not. You must make sure that the tape bonds to the surface of the roof itself, and not to the dirt attached to it.

Proper substrate preparation is accomplished by first  scrubbing the repair area  with a soft-bristled scrub brush or nylon scouring pad and warm soapy water, then rinsing with clear water. Do NOT use steel wool or a brush with wire bristles on TPO, PVC, or EPDM roof membranes.

You should thoroughly clean the area out to at least 6 inches beyond where the patch will be applied.

Repeat this process  until all of the dirt is gone, and then dry the area with a clean cotton rag. The cotton rag should not show any dirt after you wipe the area.

• General – The substrate should be clean, dry and free of all moisture, dew, frost, oil, debris, dust, and rust.
• Gravel-surfaced roofs – Remove all embedded gravel and then clean the area before applying your tape.
• PVC or Vinyl – Remove the chalky residue that often forms on PVC by lightly sanding the repair area with fine sandpaper during the cleaning process.
• Shingles and Modified Bitumen – Use a wire brush to remove any loose surface granules.
• Steel – Remove all rust with a wire brush prior to regular cleaning. You should apply a  rust-inhibiting primer  to the repair area before applying your tape.
• TPO or EPDM – After cleaning the surface with soap and water, a second cleaning with acetone or a special rubber roof cleaner is recommended to remove water-resistant residues.

We would be remiss if we recommended using anything less than 6-inch repair tape.

In the roofing industry, having a  minimum  3-inch overlap is a standard best practice whenever you’re dealing with roof seams , laps, patches, joints and anything else that uses adhesive to hold two pieces of a roof together.

A minimum 3-inch overlap is always specified by roofing manufacturers, roof consultants, and the standards issued by the National Roofing Contractors Association ( NRCA ).

Instructions for applying a roof patch always call for the patch to extend a minimum of three inches  in all directions  beyond the hole, tear, or deteriorated area.

This means that even a pinhole needs a 6-inch-wide patch.

There are two reasons for having a relatively large overlap.

One is the fact that adhesive failure typically starts at the edge and then the delamination progresses toward the middle of the patch over time.

The larger the bonded area, the longer it takes for adhesive failure to turn into a leak. Three inches gives you plenty of time to spot the issue and replace the patch or repair the seam.

The other reason is the strength the extra material provides.

When you put a patch over a roof seam that is coming apart, you have to consider that the forces causing the seam to come apart will still be at work even after you patch it.

There needs to be a strong enough bond between the repair material and the underlying roof to counteract these forces and hold the roof together. For any given roof sealant tape, the larger the bonded area is, the stronger the overall bond will be.

We recommend using 6-inch roof tape for all repairs.

You will probably be perfectly fine using 4-inch tape to repair simple membrane punctures, but if you’re using the tape to fix longer tears, roof seams, or laps between two sections of material, you should really use the 6-inch.

Roof repair tape is very simple to apply and anyone can do it. You don’t need any roofing experience at all.

But you will need a couple more things to do it right. Other than the things you’ll need to properly clean the repair area (see above), you will need:

A pair of construction shears or high-quality heavy duty scissors . ( See on Amazon )

A cheap pair of normal scissors probably won’t cut roof repair tape cleanly. This stuff is very tough and very gummy. You’re going to want a nice neat edge on your patch for the sake of both appearance and performance.

A decent hand roller . ( See on Amazon )

The application instructions for the tapes listed below all call for hand-rolling the patch to ensure a complete bond and remove small wrinkles or trapped air bubbles. Hand-rolling will make your patch look better, perform better, and last longer.

Hand-rolling is a best practice whenever you mate two roofing surfaces with an adhesive of any kind. Even the long field seams in a commercial EPDM roof get hand-rolled.

Always apply very firm pressure and roll from the center out. Be sure to roll the entire surface of the patch.

List of the Best Roof Repair Tapes • Best Roof Sealant Tapes

Note: Tape thickness is given in “mils”. A “mil” is a unit of measurement used for thickness that is equal to 1/1000 of an inch. “Mil” does not stand for millimeter.

Why it’s one of the best roof sealant tapes:

EternaBond makes the best roof repair tapes we’ve seen in over 30 years of using roof repair tape. This is our top recommendation for a roof sealant tape for repairing just about any kind of roof.

We’ve tried a few different sealant tapes over the years, and we settled on EternaBond as a standard part of the gear carried by our inspectors and maintenance crews.

Roof patches that we made with EternaBond were still in great shape with years of service life left when we checked on them 15 years later.

We always bought EternaBond at roofing supply stores, but we weren’t surprised when we finally looked it up on Amazon and saw that it had an almost perfect 5-star rating with over 9,000 reviews (mostly from very satisfied RV owners).

EternaBond is owned by H.B. Fuller, a reputable company that has been around for 130 years. They also make Gorilla Glue.

Available Colors: White, Black, Gray, Tan

Available Widths: 1.5-inch, 2-inch, 3-inch, 4-inch, 6-inch, 12-inch

Tape Thickness: 35 mils

Recommended for use on (compatible substrates): EPDM, TPO, Hypalon, aluminum, galvanized steel, wood, and fiberglass

See EternaBond RoofSeal Repair Tape on Amazon

Why it’s one of the best roof repair tapes:

ThermaCote is an excellent roof sealant tape. You could say it’s one of the only repair tapes in the same league as EternaBond. We’ve seen ThermaCote Repair Tape in action and we’ve been very happy with the results.

The company doesn’t really market this tape to RV owners for some reason, although RV roof repair is one of the uses listed in their product brochures.

You also can’t buy it through Amazon or the Home Depot. They do sell it by the roll on their website, though, and they have a pretty simple purchase and check-out system.

One big plus is that it comes in wider sizes than most other roof tapes; you can get rolls up to 18 inches wide.

Please note that as of right now, according to a note on their website, all ThermaCote® Roof Repair Tape is black in color.

Available Colors:  Black

Available Widths:  6-inch, 9-inch, 12-inch, 18-inch

Tape Thickness: 26 mils (without liner)

Recommended for use on (compatible substrates): TPO, EPDM, metal, cement, plywood, OSB

See ThermaCote Repair Tape on the ThermaCote website

APOC Incredible ® Repair Tape and Sealant

Although we haven’t used this tape ourselves, we wanted to include a roof repair tape from a highly-regarded manufacturer which specifically included PVC in its list of compatible roofing materials.

APOC is a great company with a very long history of manufacturing high-quality roofing accessory and repair products commonly used by experienced construction professionals.

This tape gets great reviews and APOC is a great brand. We’d buy it if we needed it.

And it was the only brand of roof repair tape we would buy that specifically lists PVC as a compatible material in the product data sheet.

Available Colors:  Black, White

Available Widths:  4-inch, 6-inch

Recommended for use on (compatible substrates): metal, wood, fiberglass, plastic, structural concrete, concrete block, brick, smooth BUR, smooth SBS, smooth APP, EPDM, TPO, Hypalon and PVC surfaces

See APOC Incredible ®  Repair Tape and Sealant on Amazon

If you want your roof sealant tape to match the look of your aluminum or galvanized steel roof, this is the best you can do.

We’ve used this to seal the seams and joints on a lot of exterior rooftop ductwork and it works great.

EternaBond AlumiBond is made with the same high production standards as regular EternaBond, and it uses the same great adhesive.

This tape has a 4-mil aluminum backing which provides an exceptionally durable surface with excellent UV resistance.

Available Colors:  Silver

Available Widths:  2-inch, 4-inch

Tape Thickness: 21 mils

Recommended for use on (compatible substrates): carbon steel, aluminum, galvanized steel, aluminum foil, gypsum board, wood, rubber, tar, polyethylene, polypropylene, polystyrene, fiberglass, brick, concrete, masonry, rubber, thermoplastics, single-ply roofing

See EternaBond AlumiBond Repair Tape on Amazon

Another great tape from EternaBond. If you are planning to seal your roof with a roof sealant coating ( like this one ), it’s considered a best roofing practice (and simply a good idea) to patch any holes and repair any open or questionable seams on your roof before you apply the coating.

Manufacturers of roof coating systems for commercial roofing applications will typically supply their own repair tape and reinforcement fabric for use with their coating systems.

Companies that specialize in applying roof coatings will normally use all of these things from the same manufacturer in order to offer a full system warranty to their customers.

When you buy your own roof coating in order to seal your own roof, whether its an RV roof or otherwise, the coating company won’t usually provide peripherals like seam reinforcement tape, so you need to buy your own separately.

Regular roof repair tape is designed to be the final protective surface in the locations where it’s applied, and it’s often hard to get anything to stick to the (top!) surface of regular roof repair tape. You need something specifically designed to hold a coating.

EternaBond WebSeal is an excellent choice for this application. This is how EternaBond describes their WebSeal tape:

• Maximum conformability for irregular surfaces
• Designed to hold all roof coatings, sealers, or paint
• Fabric backing
• Perfect for making all roofs/surfaces watertight before coating is applied

Available Colors:  White

Available Widths:  2-inch, 4-inch, 6-inch

Tape Thickness: 23 mils

Recommended for use on (compatible substrates): EPDM, TPO, CSPE/Hypalon, most PVC, CPE, SBS, APP modified bitumen, asphalt BURs, coal tar BURs, all metal roofs, tiles, shingles, aluminum, galvanized steel, gypsum board, wood, polyethylene, propylene, polystyrene, fiberglass, brick, concrete, masonry, OSB

See EternaBond WebSeal Repair Tape on Amazon

We wanted to find the best roof sealant tape manufactured specifically with RV roofs and mobile homes in mind.

We researched several of the best-selling RV roof repair tapes; we reviewed product technical data sheets, materials, and customer reviews. We considered reports of user satisfaction, common complaints, and reported issues.

Of all the most popular roof repair tapes specifically targeting the RV market, this is the one we would buy.

Available Colors:  White, Black, Tan

Tape Thickness: 45 Mils

Recommended for use on (compatible substrates): EPDM, TPO, Hypalon, metal, modified asphalt, vinyl, aged and rigid PVC, OSB, rigid extruded polystyrene, wood, tile

See Cofair Quick Roof Extreme Repair Tape on Amazon

About the Author

Jack Gray is a principal roof consultant and vice president at the  Moriarty Corporation , an award-winning building enclosure consultant firm founded in 1967. He is also the editor of the Roof Online website.

Mr. Gray has worked in the roofing industry for over 25 years, with training and practical experience in roof installation, roof inspection, roof safety, roof condition assessment, construction estimating, roof design & specification, quality assurance, roof maintenance & repair, and roof asset management.

He was awarded the Registered Roof Observer ( RRO ) professional credential in 2009.

He also served as an infantry paratrooper in the 82 nd Airborne Division and attended Cornell University. Read full bio .

EPDM Roofing 101 • EPDM Roof Guide for Non-Roofers

How Long Does a Roof Last? • Roof Lifespan for 49 Roof Types

How to Replace a Missing Asphalt Shingle

Modified Bitumen Roofing 101 • Mod Bit Roof Guide for Non-Roofers

PVC Roofing: Introduction to PVC Roofs

Roof Cement Guide • Top Roof Cement Products

TPO Roofing 101 • TPO Roof Guide for Non-Roofers

Modern Roof Repair with PSA Tapes is an informative article by the inventor of EternaBond repair tape published in the January 2011 issue of IIBEC Interface .

RV Flex Repair USA

Stop - 4 things every rv owner must know about their roof.

1. Does the product you're applying need a Primer? Most RV Roof products do NOT stick well to EPDM Rubber Roofs without a Primer. RV Flex Repair Products do not require a Primer for EPDM rubber roofs, Metal/Aluminum or Fiberglass.

2. Are the products you're applying compatible with each other? Most products do not work with different products. RV Flex Repair products are compatible with each other.

3. Are the products you're applying waterproof? Most RV roof coatings are not waterproof and state in their fine print that it cannot handle ponding water. RV Flex Repair 100% Silicone Coating is completely waterproof.

4. Is there a warranty that comes with your produts? RV Flex Repair products are the only RV Roof Products that come with a warranty, let alone a Lifetime Warranty!

RV Flex Roof Repair Tape - 4" x 50' Roll & Roller - White

Time to complete - 1hr

Difficulty Level - Beginner

Calculate how many linear feet you want to cover. Each roll is 50’ long.

• You Have A Leak
• You Have A Split Roof Seam 
• A Branch Tore Through Your Roof

These problems are way to common and often you wonder how am I going to deal with this?

RV Flex Repair Roof Tape is specially formulated with a super sticky adhesive.  This allows the tape to adhere to tough to stick surfaces like EPDM Rubber Roofs (this is the most common RV roof).  It sticks to virtually all surfaces except silicone.  The top of the Tape is White and compatible with itself and with:

• RV Flex Repair Self Leveling Caulking
• RV Flex Repair 100% Silicone Roof Coating

All you have to do is:

•   Clean the surface well.  Acetone works as a good final wipe
•   Remove the bottom release liner in small amounts at a time
•   Start applying the Tape working in small sections
•   Smooth from the middle working outwards
•   Use the included Seam Roller to adhere well
•   Some people will coat over the Tape with the RV Flex Repair 100% Silicone Roof Coating to make the repair completely seamless.
• Use on RV's, Motorhomes, Trailers, Mobile Homes, Rubber Roofs, Metal Roofs, Flat Roofs, Vents, Skylights, Wood, Fiberglass, Aluminum....
• Cut a clean edge to peel corner of release liner
• Work in small sections
• Lay tape gently without stretching
• You can overlap the tape on itself
• Apply in 50F/10C temperatures and rising
• Rough/Sand smooth (fiberglass), plastic surfaces before applying
• Place tape on positive side (water pushes down on top of tape).  Tape should not have water forcing from the bottom/adhesive side out
• 100% Lifetime Guarantee

It's a great idea to always keep a roll of RV Flex Repair Roof Tape on hand for when issues come up.  You don't want to get caught without it when you really need it.  It's also a great gift for your fellow campers.

Thank you for submitting a review!

Your input is very much appreciated. Share it with your friends so they can enjoy it too!

• rubber roof
• customer service
• application

Works great

This product was easy to install. I especially recommend using the tool to push the tape down.

Looking GREAT!!!

We needed to restore the rubber roof on our 2003 R-Vison Class B motorhome. We were quoted that to replace the roof would cost $$$$. We looked around online to see if there was any other options available. Ziollo products had a great rating on Amazon.ca, and it was on sale! We received our order right on schedule. We had a couple of questions regarding application of the products and contacted Customer Service, the responses were prompt. The product went on easily after prepping the joints and roof according to the online instruction videos. The timing of weather wasn't cooperating so we ended having to apply one coat and came back to it a couple of days later to apply the second coat. The results were fantastic! The roof is now a brilliant white, instead of what it was before, looking like a a badly scuffed up white running shoe. During our first trip with the RV, one day we had torrential rain showers throughout the day. The rain ran right off the roof with no pooling and more importantly, no leaks! We would definitely recommend this product to anyone needing to restore and upgrade their RV roof.

37 ft 5 th wheel roof done

It was a job but it looks Great. A lot of work for this 73 year old. Would recommend everyone with a 5+ year rig to do. Seems to be a Great product.

Rv Flex Repair

I like the tape. Put on the roofing. Thought I put it on heavy with a roller and realized after done that only used about 2 gallons of the 7 gallons I purchased for my 37 foot 5th wheel so it evidently needs another coat of which I will do. Like the product overall. Am counting on never needing to do this again.

Easy to apply and clean up after. Dries in hours

What you need for your project:

1. Biodegradable soap and scrub brush to clean the surface.

2. Acetone and rags to give a final wipe before application. Can buy at any Home Depot, Walmart...

3. Scissors or utility knife to cut the tape. Can use tweezers to help pull the corner of the release liner (backing) off.

When I created the RV Flex Repair product line, I wanted it to be hassle free and last the life of your RV. I feel we've accomplished this and stand behind our products 100%. If for any reason your product has an issue, I will replace it or refund it over the life of your RV. Even if something strange happens like a branch goes through your roof, let me know and I'll send you out free product to fix it. I don't know of anyone else who stands behind their products like this.

I was in the same situation as you trying to maintain and repair my Motorhome Roof. I said to myself, there has to be a better way. That's when my journey started to create the worlds best RV Roof solution. Read MY STORY HERE .

Full Application Video

This video shows how to prep and apply the RV Flex Roof Repair Tape - 4" x 50' Roll & Roller - White

The products are formulated with ingredients that last 50+ years. They stand up to hot and cold environments and are UV stable. These products are backed by the 100% warranty so you never have to worry again.

Generally we get your order to you in 2-4 days. There has been some carrier delays due to Covid.

Yes, you can return items up to 30 days after you have received it. Just make sure it's in sellable condition and we will provide you with a pre-paid return label.

Yes, if you made a mistake or need to change anything, email support@ziollo,com and we'll fix it right up for you.

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• Adhesives & Sealers
• Sealing Tape

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EternaBond RV Mobile Home Roof Seal Sealant Tape & Leak Repair Tape 4" x 50' Roll White Authentic (4''-50ft)

1.5" x 50'

2" x 50'

2''-50ft

3" x 50'

4" x 50'

4''-50ft

6" x 10'

6" x 50'

Purchase options and add-ons

About this item.

• 4 inch x 50 feet Contin ROLL of authentic Eternabond repair tape.
• Bonds to surfaces and stops leaks.
• Use on: EPDM, TPO, most PVC, CSPE/Hypalon, CPE, SBS, APP modifieds, asphalt BURs, coal tar BURs, all metal roofs, tiles, shingle, aluminum, galvanized steel, gypsum board, wood, polyethylene, propylene, polystyrene, fiberglass, brick, concrete, masonry, OSB, etc. Seals roof tears, seams, flashings, copings, skylights, gutters, and much more.
• This tape is made to withstand all weather and will flex, expand and contract in all conditions.
• Dimensions: 4 inch width, 50 feet length. Made in USA.

Product details

• Is discontinued by manufacturer ‏ : ‎ No
• Product Dimensions ‏ : ‎ 15.24 x 15.24 x 5.08 cm; 0.28 g
• Date First Available ‏ : ‎ Sept. 26 2018
• Manufacturer ‏ : ‎ EternaBond
• ASIN ‏ : ‎ B07F9659ZT
• Manufacturer reference ‏ : ‎ 4in-50ft-tape
• #50 in Sealing Tape

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Product description

This tape has a peel-off backing, when exposed, will stick to most any surface except silicone. MicroSealant Technology. White UV stable backing. Bonds to surfaces and stops leaks. Use on: EPDM, TPO, most PVC, CSPE/Hypalon, CPE, SBS, APP modifieds, asphalt BURs, coal tar BURs, all metal roofs, tiles, shingle, aluminum, galvanized steel, gypsum board, wood, polyethylene, propylene, polystyrene, fiberglass, brick, concrete, masonry, OSB, etc. Seals roof tears, seams, flashings, copings, skylights, gutters, and much more. Can be applied in weather as cold as -20 degrees. Seals for an air, moisture and water-tight barrier. One step permanent leak repair tape. Dimensions: 4" width, 50' length. Made in USA. ROOFSEAL WHITE 4" X 50' BY ETERNABOND The types of roofs this adhesive seal can be used on include EPDM, TPO, hypalon, most PVC, modified, all metal and much more.The Eternabond roofseal is makes a tight seal on tears in the roof or seams, flashings, copings, skylights, gutters and many other repairs. It is perfect for repairs or to restore the roof on your motor home and RV. DO IT YOURSELF RV ROOF REPAIR If you're looking for an easy do it yourself way to repair your leaky roof, this tape would work perfect for you. This roofseal makes a permanent water-tight seal using adhesives with integrated primers and UV stable backing. This tape is made to withstand all weather and will flex, expand and contract in all conditions. BONDS TO ROOF SURFACE WITH MICROSEALANT TECHNOLOGY Before applying, the surface must be clean and dry, you can use the Eternaclean for an easy clean up. For application, install over the repair area, removing the protective liner as you go, to prevent the tape from getting

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What Is the Best RV Roof Sealant?

These are the most popular roof material types, along with some advantages of each:

Technician Tip: Consult your manufacturer or owner’s manual to confirm which RV roof type your unit has.

What Is the Difference Between RV Roof Coating and Sealant?

Though the terms are sometimes used interchangeably, a coating is used to seal (or reseal) an entire RV roof, while an RV roof sealant is used to reseal roof edges or patch smaller damaged or worn areas of your RV’s roof membrane.

We provide recommendations for RV roof coatings and sealants below to give you the most comprehensive selection.

Picks for the Best Sealant for RV Roofs

Our list of the best RV roof sealant products includes at least one option for each RV roof type. It also includes an RV roof coating option for the common RV roof types, giving you a solution for a DIY roof re-sealing project. If you don’t already have one, pick up a caulking gun for easy roof sealant application.

Best RV Rubber Roof Sealant: Dicor Self Leveling Lap Sealant

The Dicor family of self leveling lap sealants is our top choice for RVs with EPDM, TPO, and PVC rubber roofs. With various colors available, you can find your desired choice for resealing around roof vents, air conditioners, vent pipes, and aftermarket roof-mounted accessories. 

These RV roof sealants are UV-stabilized to reduce deterioration and discoloration with prolonged sun exposure. They also use a HAPS-free (HAPS = hazardous air pollutants) formula, making them cleaner and safer to use on your RV.

Technician Tip: Whether self-leveling or non-sag, Dicor sealants are extremely consistent and last long when applied according to the instructions.

Best RV Rubber Roof Coating: Dicor Rubber Roof Coating System

If you need a solution for resealing an entire RV roof, Dicor’s rubber roof coating system works on EPDM, TPO, and PVC roof membranes. On average, an 8’ x 30’ RV roof would require four gallons for a complete reseal, as Dicor recommends applying a minimum of two coats at a coverage rate of one gallon per 125 square feet of roof surface.

Technician Tip: This multi-stage system must be applied properly, but it provides an affordable option for many roofs needing major repairs.

Best Sealant for Fiberglass RV Roof: Geocel ProFlex RV™ Sealant, Clear

We recommend this clear Geocel sealant for patching or resealing smaller areas on a fiberglass RV roof. It’s a CARB-compliant (CARB = California Air Resources Board) formula that offers better adhesion, even when damp, and improved elasticity compared to silicone sealants.

This clear formula can be painted over, making it easy to match your RV’s exterior color after completing the repair. The formula also displaces water in RV seams or joints as it’s applied, further aiding a watertight seal.

Technician Tip: Geocel goes on accurately and finishes clean. It lasts and lasts on properly prepared surfaces. It sets up quickly as well, so work in small sections.

Best Fiberglass RV Roof Coating: Dicor Fiberglass RV Roof Coating

Reseal an entire fiberglass RV roof with this one-gallon roof coating. The bright white finish is designed to improve your roof’s reflectivity, keeping the interior temperature cooler. Once dry, the flexible roof coating resists mold and mildew.

One gallon is designed to cover approximately 350 square feet of RV roof area. Dicor recommends a minimum of two coats to optimize the performance of this roof coating. The first coat must be dry before applying the second coat, and the roof will need at least 24 hours for a complete cure.

Technician Tip: Unlike rubber membranes, fiberglass must be carefully prepped and only products engineered specifically for it should be used to ensure lasting results like you get from this coating.

Best Aluminum RV Roof Sealant: AP Product Sikasil

Airstream is one of the most iconic aluminum RVs, so we went to them for an aluminum RV roof sealant recommendation. Sikasil was the answer, and I won’t argue. 

This quick-curing silicone sealant comes in multiple colors and bonds to aluminum substrates without a primer. It’s used in RV production because of its long service life, enhanced adhesion, fast curing, and high early green strength.

Here are the different color options: 

Technician Tip: Color alone is not Sika’s only choice. They have a broad selection of products formulated for specific applications, so be sure you have received the correct type, not just the correct color. Sealing aluminum rooftops is challenging, and inferior products may fail in as few as 30 days.

Best Aluminum RV Roof Coating: Dicor Metal Roof RV Coating

We recommend Dicor’s metal roof RV coating for resealing the entire roof of an aluminum RV. It’s an elastomeric coating that forms a rubber barrier on any metal, aluminum, steel, or previously coated RV roof. Note that you must apply Coating-Ready Cover Tape to the roof’s surface before using this metal RV roof coating. 

Best Self Leveling RV Roof Sealant: Dicor Self Leveling Lap Sealant

As mentioned above, the Dicor family of products takes the top spot for best self leveling RV roof sealants. Their effectiveness, easy application, and range of available colors make them hard to beat. Here are the different color options to match your RV’s roof: 

• Dove Bright White

Technician Tip: Dicor sealants will work on all roofing materials. Not all sealants are formulated to bond to the harder and less porous surfaces as Dicor is, and they may require additional steps or primers to work as intended on those challenging membranes. The broader range of colors and consistencies from Dicor set them apart.

Runner Up: Alpha Systems Self Leveling Lap Sealant

Alpha Systems also makes a useful collection of self leveling lap sealants. Like the Dicor products, they’re made for horizontal applications and are designed to block air and moisture intrusion while offering excellent weather resistance.

Here are your color options: 

Best Sealant for RV Roof Seams: Heng’s LiquidRoofTape

For an easy brush application, we recommend Heng’s LiquidRoofTape for resealing RV roof seams. This liquid silicone solution is strengthened by microfibers and designed for use around roof vents, skylights, air conditioners, antennas, vent caps, and other factory-equipped or aftermarket roof-mounted accessories.

Best RV Roof Sealant Tape: Quick Roof Extreme Repair Tape

Use Quick Roof Extreme Repair Tape as a non-liquid RV roof sealant. Their tape products are compatible with EPDM, TPO, PVC, metal, fiberglass, vinyl, and even wood RV roof finishes. Plus, they withstand hardening, cracking, and shrinking over time. 

Here are your size and color options: 

• White, 4” x 25’
• White, 6” x 25’
• White, 4” x 6’
• White, 8” x 8” Patch
• Clear, 4” x 20’
• Clear, 4” x 6’

Technician Tip: When using, follow all surface prep instructions closely. Avoid feeding from the roll. Lay it out along the seam first and cut it to length. Position it atop the seam, carefully peel away the backer in short sections, and press it into place over the seam. After working to the end of the seam, work the tape tightly into the seam using a clean, dry cloth. Never allow the sticky side of the tape to fold back on itself. If this happens, do not attempt to pull it apart and reuse it, as it will fail prematurely. Simply cut out the bad section, overlap where you left off, and continue. If gaps or puckers appear, rub them down as much as possible and apply a self leveling lap sealant along that edge.

Runner Up: Dicor Seal-Tite Sealing Tape

The Seal-Tite Sealing Tape from Dicor only comes in as runner-up for the best RV roof sealant tape because Quick Roof offers a few more size and color options. This product creates a permanent seal over damaged RV roof sections but can also be used to repair sidewalls, holding tanks, and other afflicted areas.

• White, 4” x 50’
• White, 6” x 6” Patch
• Gray, 6” x 25’
• Gray, 2” x 50’ Corner Seal

Technician Tip: These offer a quick and reliable repair for seams, tears, and pin holes. With proper surface prep, all of the products can offer a permanent repair that is affordable. The handy sizes and colors offered by Quick Roof and Dicor set them apart from the others for roof and awning repairs in the field.

FAQs About RV Roof Sealants

Finding the right sealant for your RV’s roof is just the start. These commonly asked roof sealant questions will help you learn more about maintaining your RV’s roof.

How many tubes of sealant do I need for an RV roof?

On average, one 10.3-ounce tube of RV roof sealant will cover just under 25 feet of RV roof edge, calculated for a bead with a quarter-inch width and depth. 

Let’s say you have a 30-foot RV roof that’s 8 feet wide, giving you a total of 76 feet of roof edge to seal. Using that same quarter-inch wide and deep bead, you’d need a minimum of four 10.3-ounce tubes of sealant to complete the job. 

Technician Tip: This calculation accounts for 5% wastage, which may be conservative.

Is it OK to use Flex Seal on an RV roof?

Only use Flex Seal on an RV roof in an emergency. It can work well in areas that aren’t exposed to the sun, but the product’s lack of UV stabilization can cause it to crack and fail when used in areas that get prolonged sun exposure. Additionally, FlexSeal’s silicone products can leave behind a residue that inhibits adhesion for other products, compromising your ability to complete future repairs.

How long does RV roof sealant last?

Your RV’s roof should be inspected annually (at minimum), but the original roof sealant from the manufacturer is rated to last 10 to 20 years. Of course, that rating is dependent on proper maintenance, such as using an RV cover to minimize exposure to UV, moisture, and dirt. Realistically, most RVers need to apply roof sealant every 2-4 years, depending on the degree of preventative maintenance. 

Use these additional resources to bolster your knowledge about RV roof maintenance, when it’s required, and what to look for: 

• How To Do an RV Roof Inspection
• Everything You Need to Know About RV Seams & Sealants

Do you have a favorite RV roof sealant? Tell us your choice and why it’s your preference in the comments below.

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