How to Fix Window Leaks in RV Windows

RV windows will begin to leak after time and need to be maintained to continue to work properly. The seal between the wall of the RV and the frame of the window may begin to separate and allow water and air to seep into the RV. This can cause serious damage to the RV walls if not dealt with immediately.

• 1

  Remove any old caulk from between the window frame and the wall of the RV. A putty knife and utility knife work well for scraping away old pieces. The utility knife will cut the caulk away from the wall. This will need to be removed so the new caulk can bond appropriately.

• 2

  Clean out the inside of the gap between the wall and the window frame. This gap should be no bigger than an 1/8 of an inch. Slide the putty knife through the opening to scrape away any dirt from inside.

• 3

  Clean the frame of the window and wall of the RV with cleaning solution and towels. This will remove any dirt that would prevent the caulk from bonding properly. Wait for the walls and windows to dry completely.

• 4

  Tape around the edges of the window sill. This will prevent caulk from being pushed all over the walls of the RV. It will also leave a cleaner, more professional look.

• 5

  Cut the end of the caulking tube with a pair of scissors. This will open the end of the caulk. You should be able to look down the pointed end of the caulk and see the solution inside. Cut enough away from the tube that the hole left behind is no bigger than 1/8 of an inch in diameter.

• 6

  Insert the tube of caulk into the caulk gun. Tighten the handle so it is inside the end of the caulk tube.

• 7

  Insert the pointed end of the tube into the hole between the window and the wall.

• 8

  Squeeze the "trigger" on the caulk gun to release the sealant into the hole.

• 9

  Push excess caulk into the hole with your finger.

• 10

  Remove the tape from around the window. Do not wait until the caulk has dried.

• 11

  Smooth the caulk with the putty knife or a caulking tool.