How to Install a Door Drip Cap


Whether or not you intend on putting a storm door over your exterior door, you may need to install a drip cap. A drip cap will prevent deterioration and water damage to the underlying wood frame in your door. Here's how to install a door drip cap.

Things You'll Need

  • Drip cap
  • Caulking
  • 1/2-inch galvanized screws
  • 1 pint exterior paint
  • Determine if you need to install a storm door. Most storm door kits come with a drip cap, so you will not need to purchase one separately.

  • Choose proper sizing and placement of your drip cap. Purchase a drip cap for the size of your door. Doors usually come in 32-, 34- or 36-inch widths. In most cases, the top of the brick molding around the door will serve as the place to screw in the door's drip cap.

  • Apply some caulking to the drip cap just prior to installation. This keeps water from getting behind the drip cap.

  • Place the drip cap channel on the top of the door frame. Be sure to center it, or follow the directions that came with your storm door.

  • Screw the drip cap in place. Use the screws provided with your storm door kit, or use galvanized 1/2-inch screws. Paint the screws the same color as the drip cap for a finished look.

Tips & Warnings

  • If you're installing a storm door, follow the manufacturer's directions for drip cap installation.
  • Purchase caulking and exterior paint in the same color as the drip cap.

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