Drip cap is an L-shaped flashing that goes over windows and doors after they’re installed (but before siding is installed) to prevent moisture from seeping in from above. One leg of the “L” goes over the window or door brick mold, while the other lies behind the siding that will go above.Click to see full answer. People also ask, how do you install a drip cap on a door? Install a Door Drip Cap in 5 Steps Decide if you will install a storm door. Set the drip cap channel at the top of the door frame. Apply a layer of silicone caulk to the drip cap. Screw the drip cap into place with galvanized screws or the screws provided in the storm door kit. Additionally, what is a door cap? The DC050 is a door cap used to reinforce wood doors with flush bolts or concealed vertical rods that have been damaged due to high abuse. The heavy-duty door caps are manufactured from 0.50″ stainless steel, brass or bronze and can be produced to work with any manufacturers hardware. Also to know, is a drip cap necessary? The short answer is, yes. Without the window drip cap installed around your window, the water will either seep into your home and leak all around your window or it will seep into the middle of your double-paned windows.How do you replace a drip cap? Removing Drip Edge Eave Strips: Gently lift up the shingles along the lower edge of the roof, and find the nails attaching the eave strip to the roof decking. Use a flat pry bar and hammer to remove the nails holding the eave strip to the roof decking. Slip the eave strip out from under the shingles.