RV Roof Caulking Lap Sealant New
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
RV Roof Caulking Lap Sealant
RV Roof Caulking Lap Sealant
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RV Roof Caulking Lap Sealant

Original Price: Current Price: $14.95
Easy to Apply

Easy to apply in a weekend with brushes and rollers

Superior Adhesion

Creates a powerful bond on TPO roofs

Long lasting

We guarantee it with a 10-year warranty.

Completely waterproof

Completely waterproof, 100% silicone coating.

Size
Choose Size:
Hassle-free returns
Free shipping
10-year warranty

Ziollo's 10-year warranty is only valid if a the whole roof is sealed according to the application guide.

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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.

The 10-year warranty
When you seal your full roof, we'll keep you dry for 10 years!
Build Kit 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

Carousel Controls

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

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

Everything you need for your RV roof leak repair.

Tell us about your project, and we’ll calculate the total amount of supplies you’ll need to get the job done right.
Step 1
Roof Material
Different products are recommended for different roof substrates.

TBD: tooltip text will go here (Metaobjects > Kit Builder > Options Tooltip Text)

Step 2
Roof Size
To find out how much you’ll need, measure your roof & we’ll do the math for you.
Step 3
Add items to your kit
We’ve automatically calculated how much you’ll need to add to your project!
We’ve automatically calculated how much you’ll need to add to your project!
Silicone RV Roof Sealant
Silicone RV Roof Sealant

Creates your waterproof layer and keeps your RV cooler.

Creates your waterproof layer and keeps your RV cooler.

RV Roof Cleaner
RV Roof Cleaner

Cleans your RV roof safely and gets it ready for applying Ziollo products.

Cleans your RV roof safely and gets it ready for applying Ziollo products.

RV Roof Caulking Lap Sealant
RV Roof Caulking Lap Sealant

Seal around vents, skylights and other areas. Self-leveling. 


Seal around vents, skylights and other areas. Self-leveling. 


RV Roof Seam Tape (Paintable)
RV Roof Seam Tape (Paintable)

Bridges areas prone to leaking/movement before being coated over with RV Roof Sealant.

Bridges areas prone to leaking/movement before being coated over with RV Roof Sealant.

TPO RV Roof Primer
TPO RV Roof Primer

TPO roofs are hard to stick to. This Primer promotes adhesion for the RV Roof Sealant.

TPO roofs are hard to stick to. This Primer promotes adhesion for the RV Roof Sealant.

Subtotal: $199.80 Save 10%
Silicone RV Roof Sealant RV Roof Cleaner RV Roof Caulking Lap Sealant RV Roof Seam Tape (Paintable) TPO RV Roof Primer
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-

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-

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 35 reviews
Total 5 star reviews: 33 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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35 reviews
  • CB
    Charles B.
    Flag of United States
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    5 months 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
    5 months 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
    9 months ago
    Awesome produvt

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

    Was this helpful?
    Ziollo
    7 months 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
    9 months ago
    Awesome produvt

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

    Was this helpful?
    Ziollo
    7 months 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
    10 months ago
    top shelf company and products

    great product. great customer service

    Was this helpful?
    Ziollo
    7 months 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

  • SB
    Shawn B.
    Flag of United States
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    10 months ago
    Self leveling Lap sealant

    This product was very easy to use and looks great. It hasn’t rained yet but I’m sure the product will work.

    Was this helpful?
    Ziollo
    7 months ago

    Hey Shawn

    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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