Things You'll Need:
- Cleaner Sponge Razor blades Masking tape Caulk Caulking gun Scissors Gloves
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Step 1
Find the leaking window and clean outside. Use any brand of kitchen or bathroom cleaner you like and a sponge. Spray the window and scrub until the outside frame is clean. This will help the caulk stick to the window frame.
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Step 2
Use a razor blade to clean out the old built-up caulk from under the window ledges. Keep scraping until you have removed as much as possible. If your blade goes dull get a new one and continue until you have removed all the old caulking.
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Step 3
Use the cleaner to spray behind the frame. Wipe out as much dirt and caulk as possible with a rag and leave what you can't get to. Give the spray time to dry before proceeding to the next step.
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Step 4
Tape off the area around the window to keep the caulk from getting onto the side of the RV. Leave a small gap (about 1/8 of an inch) between the frame and the tape so you can apply the caulk.
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Step 5
Pull open the cap on the caulk and snip off the tip with a pair of scissors. Break the inner seal after you cut off the tip. After you have broken the seal, insert the tube into the gun. Wear a set of gloves and caulk one side of the frame, pushing the caulk into the crack with the gloves. Finish the other sides and go back over the spots you missed.






















