The most damaging effect of having a water leak in your motorhome is time, and the best way to help protect your motorhome from water damage is to thoroughly inspect the coach's every nook and cranny.  Here are a few tips on where you should be looking and what the warning signs are:


  • The most likely points on your coach to start leaking are where the manufacturers had to cut holes for windows, doors, vents, and the like, so make sure to thoroughly inspect all roof and body seams. Consult with your RV dealer for the best sealants compatible with different types of materials.
  • Look for any discoloration and feel for any soft spots on the ceiling around roof vents, air conditioners, TV antennas, plumbing vents, and any other openings that were cut in the roof.
  • Look for any discoloration or wrinkles in the wallpaper, and feel for any soft spots on the walls around all windows, doors, vents, slide outs, or any other openings that were cut in the side walls.
  • Identify the location of items like the water heater, furnace, outside shower, potable water fill and city water inlet on the outside of the RV and then access those areas from the inside of the RV and look for any indications of water damage around these openings.
  • Open all overhead cabinets, and look in the top corner where the walls meet the ceiling for any discoloration or feel for any soft spots. This would indicate a leak at the seam where the sidewall and the roof attach.
  • Check in all outside storage compartments for any indications of water leaks or water damage.
  • Check for any soft spots on the roof itself, especially around the roof seams at the front and rear of the RV. Thoroughly inspect all sealants on the roof around every opening.
  • Some Class C motor homes are notorious for leaks in the cab-over bed area. Look for any signs of discoloration and feel for soft spots. Reach under the mattress and feel for water.
  • Look and feel on the outside of the RV for any signs of delaminating. Delaminating is caused by water getting between the exterior fiberglass and the sidewall. When this happens the exterior fiberglass separates from the sidewall of the RV. You can stand at the front or rear of the RV and look down the side for any noticeable ripples or what looks like a bubble. You can also press on the sidewalls. If you feel the exterior fiberglass move, it is delaminating.

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