RV Roof Caulking Lap Sealant
RV Roof Caulking Lap Sealant
RV Roof Caulking Lap Sealant
RV Roof Caulking Lap Sealant
RV Roof Caulking Lap Sealant
Ziollo RV roof sealant and cleaner products with text 'Prep, Seal, and Protect' on an orange and blue background.
RV Roof Caulking Lap Sealant
RV Roof Caulking Lap Sealant
Display of Ziollo RV roof sealant tubes with a white background
Display of Ziollo RV roof sealant tubes with a white background
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RV Roof Caulking Lap Sealant

Easy to Apply

Superior Adhesion

Long lasting

Completely waterproof

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Product Overview

Seal your RV like a pro with Ziollo RV Roof Lap Sealant! This self-leveling formula is perfect for sealing seams, vents, skylights, and other roof openings, ensuring a watertight, flexible, and long-lasting bond.

Ziollo RV roof sealant and seam tape packaging on a white background
The 10-year warranty
When you seal your full roof, we'll keep you dry for 10 years!
Warranty Info
Seal It , Stay Protected, Adventure On

Designed for easy application - just use it like a caulking tube and let it do the work! With superior adhesion and UV resistance, it keeps your RV protected from the elements so you can focus on the adventure ahead.

Customer’s RV roof transformations

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Seal vents and seams and harder to reach areas with Ziollo Self leveling Lap Sealant
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Seal vents and seams and harder to reach areas with Ziollo Self leveling Lap Sealant
Instructions

How to use Ziollo RV Roof Lap Sealant

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Frequently Asked Questions

What if I have a problem or question with an application?

Our technical support team is here to help you, just reach out to us to talk with one of our technical support experts. Support@Ziollo.com or call 1-289-856-9983

Our technical support team is here to help you, just reach out to us to talk with one of our technical support experts. Support@Ziollo.com or call 1-289-856-9983

Can I coat over an existing coating or paint?

You can apply over most acrylic/latex, polyurethane, alkyd paint, epoxy paints/coatings with proper cleaning/preparation techniques. Keep in mind that when you apply over an existing coating or paint, if that coating/paint peels, our coating will peel with it as it is bonded to the existing coating/paint and not directly to the substrate. 

It is recommended to remove oil based or recently applied coatings with high solvent content prior to applying your Ziollo products. (oil interferes with bond/adhesion and solvents can deteriorate our sealant). If there is an existing Silicone Roof Coating on your RV you should be able to bond to it with Ziollo RV Roof Sealant but not with our Lap Sealant or Seam Tape

You can apply over most acrylic/latex, polyurethane, alkyd paint, epoxy paints/coatings with proper cleaning/preparation techniques. Keep in mind that when you apply over an existing coating or paint, if that coating/paint peels, our coating will peel with it as it is bonded to the existing coating/paint and not directly to the substrate. 

It is recommended to remove oil based or recently applied coatings with high solvent content prior to applying your Ziollo products. (oil interferes with bond/adhesion and solvents can deteriorate our sealant). If there is an existing Silicone Roof Coating on your RV you should be able to bond to it with Ziollo RV Roof Sealant but not with our Lap Sealant or Seam Tape

Do I need Seam Tape or Lap Sealant?

Yes. Seam Tape is the best choice for RV Roofs as it has its own waterproof membrane and is easy to install (just peel and stick). These products are used to reinforce against thermal and other movement to prevent cracking in the area's most likely to experience leaking.
Ziollo RV Roof Lap Sealant is used mainly for maintenance of previously sealed vents and joints by applying over the old Lap Sealant.  It can be used in conjunction with the Seam Tape prior to Priming and Coating. Refer to application guidelines for more information.

When applying Seam Tape as part of a system use our Paintable Seam Tape.

As a cheaper, quick, stand alone solution use our Repair Seam Tape.

Yes. Seam Tape is the best choice for RV Roofs as it has its own waterproof membrane and is easy to install (just peel and stick). These products are used to reinforce against thermal and other movement to prevent cracking in the area's most likely to experience leaking.
Ziollo RV Roof Lap Sealant is used mainly for maintenance of previously sealed vents and joints by applying over the old Lap Sealant.  It can be used in conjunction with the Seam Tape prior to Priming and Coating. Refer to application guidelines for more information.

When applying Seam Tape as part of a system use our Paintable Seam Tape.

As a cheaper, quick, stand alone solution use our Repair Seam Tape.

How do I know what kind of roof I have?

 The first step of using Ziollo RV Roof Sealant is to determine your roof’s material. Here is some info to help you determine RV roof type:

1. EPDM - Smooth & rubbery. White top and black bottom. Most common RV Roof material.
2. TPO - Textured & plasticky. Same color top and bottom usually. Also quite popular.
3. Metal/Aluminum - Looks like a metal roof. Grey/silver, smooth and might be shiny or painted.
4. Fiberglass - Smooth hard gel like surface.
5. PVC/Vinyl - Smooth & plasticky. Same color top and bottom.

It may also state your roof type in your owners manual.
You can also call the manufacturer with the year/make/model and they can tell you what they made the roof out of.

 The first step of using Ziollo RV Roof Sealant is to determine your roof’s material. Here is some info to help you determine RV roof type:

1. EPDM - Smooth & rubbery. White top and black bottom. Most common RV Roof material.
2. TPO - Textured & plasticky. Same color top and bottom usually. Also quite popular.
3. Metal/Aluminum - Looks like a metal roof. Grey/silver, smooth and might be shiny or painted.
4. Fiberglass - Smooth hard gel like surface.
5. PVC/Vinyl - Smooth & plasticky. Same color top and bottom.

It may also state your roof type in your owners manual.
You can also call the manufacturer with the year/make/model and they can tell you what they made the roof out of.

What tools do I need to apply Ziollo products?

Most of our coatings and primers are applied using a brush (for corners, edges, etc.) or 10mm (3/8") nap roller for large flat surfaces.
For the RV Roof Lap Sealant, you will need a caulking gun.

Technically you can spray it but you would need a heavy industrial sprayer capable of spraying a silicone coating. Most campers will not have access to this equipment. 

Most of our coatings and primers are applied using a brush (for corners, edges, etc.) or 10mm (3/8") nap roller for large flat surfaces.
For the RV Roof Lap Sealant, you will need a caulking gun.

Technically you can spray it but you would need a heavy industrial sprayer capable of spraying a silicone coating. Most campers will not have access to this equipment. 

Customer Reviews
4.9
Rated 4.9 out of 5 stars
Based on 36 reviews
Total 5 star reviews: 34 Total 4 star reviews: 2 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
100%would recommend this product
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36 reviews
  • WV
    Wayne V. P.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    6 months ago
    leaking roof

    worked excellent

    Was this helpful?
  • CB
    Charles B.
    Flag of United States
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    1 year ago
    Very impressive

    Work just as advertised! Applied not in the perfect conditions wet and cold, it did the job! Will definitely share how product works with other.

    Was this helpful?
    Ziollo
    1 year ago

    Thanks for your great review Charles! Great customers like you are why we work so hard to produce top quality products and provide the best technical support. And remember, we are here to support you if you have any questions along the way. Have a great day! Trevor

  • CL
    CRAIG L.
    Flag of Canada
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    1 year ago
    Awesome produvt

    Gteat product. Easy to use, Levels great. Hope it sticks as good as it looks.

    Was this helpful?
    Ziollo
    1 year ago

    Hey Craig

    Thank you so much for your review! We are so happy you are happy with your RV Roof Coating. And remember, we are here to help if you have any questions along the way.

    Trevor

  • CL
    CRAIG L.
    Flag of Canada
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    1 year ago
    Awesome produvt

    Gteat product. Easy to use, Levels great. Hope it sticks as good as it looks.

    Was this helpful?
    Ziollo
    1 year ago

    Hey Craig

    Thank you so much for your review! We are so happy you are happy with your RV Roof Coating. And remember, we are here to help if you have any questions along the way.

    Trevor

  • MR
    Mark R.
    Flag of United States
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    1 year ago
    top shelf company and products

    great product. great customer service

    Was this helpful?
    Ziollo
    1 year ago

    Hey Mark

    Thank you so much for your review! We are so happy you are happy with your RV Roof Coating. And remember, we are here to help if you have any questions along the way.

    Trevor

The Ziollo Story

Ziollo started the way most great adventures do—with a problem to solve. A couple of lifelong campers and road-trippers were tired of dealing with leaks, cracks, and endless patch jobs that never held up. They wanted something better. Something easy to use, durable, and built to handle the sun, rain, and miles ahead.

Ziollo isn’t just about sealing roofs. It’s about keeping you on the road, where the best memories are made. Whether it's a weekend by the lake, a cross-country trek, or a quiet night under the stars, you shouldn’t have to worry about a leaky roof cutting your trip short. So grab a flannel, crack a cold drink, and enjoy the campfire. Ziollo’s got your RV covered. Literally.

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