RV Seams and Sealant

Maintaining Your RV Exterior Seams

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Maintainig your RV exterior Seams: Well summer is here and if you didn’t get a chance to inspect your RV exterior seams, you may want to do it before heading out to your next destination. Why? If your seams have gaps or cracking you could end up with a leak which could cause damage or ruin your adventure.

Water damage often happens in corners where the RV walls come together. RV walls do leave the factory with sealed seams, however, UV light and weather exposure can break down the sealant; in turn, creating cracks in the seal which can allow moisture to seep inside. You can protect your RV if you regularly inspect the exterior seams on your walls and roof and re-seal as necessary.

Seal Tech ServiceSeal Tech Service

First, you have to find out if your RV even has leaks. The best way to check for leaks is performing a Seal Tech service. Your RV service shop will pressurize the cabin and pour soapy suds over all the windows and seals. If bubbles show up in the suds they can pin point exactly where the leak is coming from.

Visual Seam Inspection

The next thing you want to do is visually inspect all your seams. Even if they found no leaks in the seal tech service, you may have seams that are cracking with the potential for leaking. If you do find cracking or gaps in your seam sealant or around your roof, you will want to remove the old sealant and put on a fresh seal. We recommend you inspect your RV seams twice a year. Always consult your RV owner’s manual for the proper use of sealant. Different types of materials could use different types of sealants.


Photo: www.dicorproducts.com

Dicor .vs. Caulk?

Caulk is waterproof, but over time it hardens and cracks. Not only that, but removing it is much more difficult. Dicor Sealant doesn’t harden. It remains flexible and water tight, even after years of weather exposure.

If you decide to use Dicor Lap Sealant you will want to use the right sealant for the job:

  • Self-Leveling Dicor is best used on the roof or flat surfaces where it is spread evenly.
  • Non-Leveling Dicor is best for exterior trim on vertical surfaces.

Inspecting and resealing the trim on your RV is a necessary task. Establishing an annual inspection routine can save you a lot of time, money and ruined adventures.


Robert NormanEmail me your RV Stories Pics and Questions!  

Hi,  Robert here! I’m the Content editor for NWRVenture.com and the Valley RV Supercenter Newsletter. I love to share RV Tech Tips, News and Travel Destinations with the RVing community. If you have a story you want to share, email me!


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