How to Deal With Leaking Trailer Walls

Spray water over the trailer with a garden hose if you do not know the location of the leak. Have an assistant stand inside the trailer and look for dripping water. Immediately wipe or mop up water that gets inside the trailer.

Clean the area around the leak with a sponge. Patches and tape do not stick to wet or dirty surfaces.

Remove some of the old caulk around the window if you think the window has a leak. Use a utility knife and rubbing alcohol to remove the caulk.

Put masking tape around the edge of a leaking window frame. Apply clear silicone seal to the cracks between the window frame.

Use a piece of aluminum tape to cover small leaks in walls. Aluminum tape works in an emergency until you can get the trailer professionally repaired.

Cover a piece of cardboard in aluminum foil if you have a bigger leak. Place the foil-coated cardboard over the leak. Use RV seal patching tape to secure the cardboard section in place.

Remove the vinyl insert beneath the trailer trim and check it for water damage. Rusted and corroded screws are evidence of water damage.

Use a scouring pad to remove the old RV putty where the vinyl insert was located. Apply new putty then put in a replacement insert and install it with new screws.

Check for other leak sources. Common sources include vents, the air conditioner and the luggage bin. Caulk or putty tape will seal most leaks in these places.