Thursday, September 21, 2023


FlexArmor roofs—RV expert’s concerns

While we don’t install FlexArmor on RVs at our repair shop, we do see them from time to time. Check out the video below for an inspection of a FlexArmor roof in the shop.
There are certainly some benefits to this upgrade, but as an RV repair shop owner and former technician, I do have some concerns regarding the application.

Watch this video before you make the investment!

Every once in a while we have owners that come in with units that have had the FlexArmor roof coating applied. We have been replacing coatings on RV roofs for 25+ years. We replace around 50+ roofs a year due to some type of damage.

We’ve come across different roofs that have just required normal routine maintenance, like gutter spout replacements, insert molding replacements and other miscellaneous items. We have also had owners that have had the normal roof line molding come loose, which happens when the unit flexes side to side in travel or even walking in it when parked.

The following are concerns about FlexArmor that are based on my personal experience. Now, we are not saying anything bad about the product. In fact, we think it’s a good option. However, due to the way it was applied in these pictures, you will see why we are concerned.

Rear corner and side seams

I’m concerned about the insert molding, the rain gutter, the side molding and the rear cap corner cover.


  • When the insert molding shrinks up on the lower side and starts to come loose, this will allow dirt and water to enter the back side and cause damage to the screws that secure the side wall molding to the edge.
  • When the gutters go bad due to the sun, the material will not have to be cut into to remove and replace the gutters.
  • If the rear roof or rear wall has to be repaired in any way, the roof coating will now have to be cut to make any repairs. Also, as the plastic dries out on the corner molding and shrinks, this will again be an issue.
  • As the side seam starts to flex and come loose, the screws start to back out and the insert molding will have to be removed. Again, this will cause an issue with the roof coating.
Roadside rear corner location
Roadside rear corner location – long view

Rear wall and side wall

Here, I’m concerned with the insert molding, the rain gutter, side molding and rear cap corner cover, and rear cap molding.


  • Same concerns as above. If, and when, the rear side wall corner moldings become loose or get damaged, the roof material will again become an issue when it comes time to make any repairs.
  • With the rear cap molding, the seams all flex and move, and over time the molding at the roof surface will separate.
Roadside rear corner
Close up view reflects thickness on walls; however, the thickness on the roof is a lot less.

Front cap and moldings

Here, I’m concerned with the screw cover side wall moldings, the rain gutter, and side molding.


  • Just as stated above, as the body and front cap flex, the screws will become loose, back out and fail. When this happens, the screw cover molding will need to be removed in order to tighten, thus again causing damage to the roof coating.
  • Rain gutter will once again be an issue at the time of replacement, causing damage to the roof coating.
  • Insert molding once again will be an issue at the time of replacement, causing damage to the roof coating.
  • In the event that the front cap is ever damaged and requires removal or replacement, the coating will once again become an issue.

Please follow us on YouTube, and see our published articles on and other social media pages.

Please feel free to share your stories, problems, and upgrades with us so we can build a resource page to help others.

Thank you,


Dustin Simpson
Dustin Simpson
I have worn many hats in the RV industry through the years. From an RV Technician, Warranty Administrator, Parts Administrator, Parts Manager, Service Manager and now Business Owner. I have even been deemed an RV Expert by the California court system, working on behalf of the customers, dealers, and manufacturers. My repair facility has been servicing customers at the same location since 2003. What sets us apart from the dealerships is we are here to fix and maintain what you have, and not sell you a new one. Whether you own a million-dollar unit or an entry level, my message to you will be the same, it needs to be maintained.


  1. As one who has used the RV Armor product. I can testify that it is quite good at both protecting the roof and reducing the heat from the sun penetrating into the the RV.
    Moreover, it came with a lifetime warranty and proved to be very useful when I needed to have some vents replaced. I contacted the products website and arranged to have the sealant reinstalled following the replacement.
    No additional charge and maintained my warranty.

  2. Dustin, interesting insights about the product installation of Flex-Armor. As an owner of two RV’s that had roof seal failures (one that failed when less than one year old), the expense to repair and deal with seal failures are much more common (Dare I say yearly) than accidental damage to corners, roofs, rain gutters, etc that would need to be repaired no matter what you have on your roof. I feel that what the RV factories use as roofing material and sealer material is short term at best and I would take my changes with the Flex-Armor (LIFETIME/TRANFERABLE) process AND go back to their shop for any fixes/adjustments for the peace of mind. Speaking as current owner of a RV that has it 3+ years.


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