How To Install Door Flashing Tape

Carefully pull the backing from the tape and press it into the side of the window or door.

How to install door flashing tape. Install the sill pan or ro bottom flashing. Cut the corners of the house wrap the plastic sheeting that goes underneath the house siding above the top ledge of the window at a 45 degree angle to make a flap. The sill plate is set into the ro as directed by the window or door manufacturer. This creates a half inch extension on both sides of the casing.

Smooth out the tape as you work. Press the tape into place over the center of the joint so it fits evenly against the corner. The additional 3 inches of tape will wrap onto the adjoining side of the opening on the other end. Window door installation flashing for best practice use suresill sloped sill pan flashing duration.

Measure the length of the door casing which is the board that runs across the top of the door frame. How to install door flashing tape how to install door flashing tape use flexible flashing tape below the pipe overlapping the house wrap. The flashing will be wrapped over the rough opening of the window which is what will be covered eventually by siding. Cut the corner tape at 45 degree angles to allow for folding over and so the seam is completely flush with the window.

Fold the flap up and tape it up to temporarily keep it out of the way. Add 1 inch to the measurement. You will want to tuck this under the house wrap flap that you made in step 2. It s important to cover all sides top bottom and corners.

Install a drip edge that extends at least two inches on each side of the door. Flashing tape is installed after the sill pan flashing and window has been set into the rough opening. Install the side flashing tape beginning at the top and slowly work downward. Best practice is to use a pre fabricated sill pan under windows or doors.

Install the sill pan or fabricated sill pan flashing using flashing tape around and under the window or door r o.