Skip to content

How to Remove Flex Seal from RV Roof

When it comes to maintaining your RV roof, one common challenge that many owners face is removing Flex Seal.

While Flex Seal is a popular sealant used to fix leaks and cracks, removing it can be a daunting task if not done correctly.

In this article, we will guide you through the process of effectively removing Flex Seal from your RV roof.

Whether you’re a seasoned RV enthusiast or a beginner, our step-by-step instructions and expert tips will help you restore your roof to its former glory.

How to Remove Flex Seal from RV Roof: Step-by-Step Guide

1. Gather the Necessary Tools and Materials

Before you begin the removal process, it’s essential to have the right tools and materials at hand.

Here’s a list of items you’ll need:

  • Scraper or putty knife
  • Isopropyl alcohol
  • Microfiber cloth
  • Soft-bristle brush
  • Protective gloves
  • Safety goggles

2. Prepare the Work Area

Preparing the work area is crucial to ensure a smooth and hassle-free removal process.

Follow these steps:

  1. Park your RV in a well-ventilated area away from direct sunlight.
  2. Lay a tarp or plastic sheeting underneath the work area to catch any debris or residues.
  3. Put on your protective gloves and safety goggles before you start.

3. Test a Small Area

Before you proceed with removing Flex Seal from the entire roof, it’s recommended to test a small area to determine the effectiveness of the chosen method.

Choose an inconspicuous spot and apply the removal technique you plan to use.

Assess the results before moving forward.

4. Scrape off the Flex Seal

To remove Flex Seal, gently scrape off the sealant using a scraper or putty knife.

Start at the edges and work your way towards the center.

Be careful not to damage the roof’s surface while scraping.

5. Apply Isopropyl Alcohol

Once the majority of the Flex Seal has been scraped off, it’s time to tackle the remaining residue.

Moisten a microfiber cloth with isopropyl alcohol and gently rub the affected area.

This will help dissolve and remove the stubborn residue.

6. Scrub with a Soft-Bristle Brush

For more stubborn residue, use a soft-bristle brush to scrub the area gently.

Apply a small amount of isopropyl alcohol to the brush and work it into the residue using circular motions.

This will help loosen and lift the remaining Flex Seal.

7. Wipe Clean and Repeat if Necessary

After scrubbing, use a clean microfiber cloth to wipe away the loosened residue.

Inspect the area to ensure all traces of Flex Seal have been removed.

If any residue remains, repeat steps 5 and 6 until the surface is clean.

8. Rinse and Dry the Roof

Once the Flex Seal has been successfully removed, rinse the roof with clean water to remove any traces of isopropyl alcohol.

Allow the roof to dry completely before proceeding with any repairs or resealing.


Can I use a heat gun to remove Flex Seal?

No, using a heat gun to remove Flex Seal is not recommended. The high temperatures can cause damage to the roof’s surface and potentially create a fire hazard. Stick to the methods mentioned in this guide for safe and effective removal.

Are there any alternative methods to remove Flex Seal?

Yes, there are alternative methods you can try. Some RV owners have had success using acetone or a citrus-based adhesive remover. However, exercise caution and test these methods on a small area before applying them to the entire roof.

Will removing Flex Seal damage my RV roof?

When done correctly, removing Flex Seal should not cause significant damage to your RV roof. However, it’s essential to follow the recommended techniques and use the proper tools to minimize the risk of damage.

Can I reapply Flex Seal after removing it?

Yes, once you’ve successfully removed the old Flex Seal, you can reapply a new layer if necessary. However, ensure that the roof is clean, dry, and free of any residue before applying a fresh coat.

Should I hire a professional to remove Flex Seal?

If you’re unsure about tackling the removal process yourself or if the Flex Seal is heavily applied and stubborn to remove, it may be wise to seek the assistance of a professional RV roof repair service. They have the expertise and tools to ensure a thorough and safe removal.

Can I use the same method to remove Flex Seal from other surfaces?

While the methods discussed in this article are specifically tailored for removing Flex Seal from an RV roof, they can be applied to other surfaces as well. Always test on a small area first and adjust the technique accordingly.


Removing Flex Seal from your RV roof doesn’t have to be a daunting task.

By following the steps outlined in this guide, you can effectively remove the sealant and restore your roof to its original condition.

Remember to gather the necessary tools, prepare the work area, and proceed with caution.

If you encounter any difficulties or are unsure about the process, don’t hesitate to seek professional help.

With the right approach and a little bit of patience, you’ll have a clean and ready-to-reseal RV roof in no time.