Leaks are never any fun, but they are a special problem when the roof of your travel trailer roof can't seem to keep out the rain. No one wants to deal with repairing a dripping roof inside their camper while on vacation. Driving under low-hanging branches sometimes damages the membrane covering the roof. In other cases, exposure to the hot sun causes the membrane to crack. No matter what the cause of the problem, there is a simple way to coat the roof with ethylene propylene diene monomer (EPDM). This effectively seals the holes and stops roof leaks.
Replace any missing screws or rivets. Remove and replace any metal or vinyl portions of the roof that show signs of damage. Most RV stores have this material in stock.
Scrape off any old caulking, tape or other repair products from the roof. Wash the roof of the RV with a few drops of dish detergent mixed with water. Rinse the roof well and allow it to dry.
Place masking tape along the edges of the RV trailer roof where you don't want the EPDM roofing material to penetrate. Isolate a small area with the masking tape if you are just patching a small area.
Open the can of EPDM material and stir it briskly for at least three minutes to thoroughly mix the EPDM and the catalyst.
Pour a small amount of the EPDM onto the roof and spread it out. The product is self-leveling, but you need to use a paintbrush to work the product into tight spots. Work out any bubbles.
Allow the EPDM to dry according to package directions. Weather conditions, especially humidity, affect how long this process takes.
Wipe a solvent over any portions of the EPDM where you can still see exposed portions of the roof. Apply additional EPDM to the affected area. Allow it to dry.
Tips & Warnings
- Keep a roll of roof-sealing tape in the travel trailer. If you need to make repairs while you're traveling, this material should work. Apply the tape to a clean, dry surface.
- You can expect one gallon of EPDM roof repair compound to cover 40 to 42 square feet.
- Save leftover catalyzed EPDM by storing it in the freezer or refrigerator.
- Apply EPDM in a location that provides you with adequate ventilation.
Things You'll Need:
- Putty knife
- Dish detergent
- Masking tape