How Do You Trim An Exterior Window?
Trimming an exterior window is a simple process that most homeowners can do with a little preparation and some basic tools. When choosing trim, remember that exterior trim has to stand up to extremes of heat and cold as well as moisture, so consider using a PVC-based trim that is impervious to the elements. Mark the reveal on the outside edge of the window jamb by using a tape measure or combination square to make marks 1/4-inch in from the face of the window jamb. The reveal is the distance between the edge of the casing and the face of the window jamb. Make several marks on each side and in each corner. These reveal marks will guide the placement of the window trim. Measure the top piece of trim by measuring from the reveal marks on one side of the window to the other. Repeat the measuring process for each of the four trim pieces. Place the top edge of the trim against the saw fence and the board to the right of the saw blade. Set the miter angle to the right 45-degree mark. Hold the
