Most trim carpenters don t even use a tape to trim windows.
How to trim vinyl siding around windows.
It s all done by eye with a sharp pencil a miter saw and an 18 gauge nailer.
Instruction on how to install exterior 2x4 trim around a new or old window.
Use tin snips to cut a length of j molding 2 inches longer than the width of the window.
Pry off the vinyl siding and j channel from around the perimeter of the window.
Unscrew and remove the storm window from the outside of the window.
Use tin snips to trim off the metal flashing covering the exterior windowsill.
Cut a 45 degree angle on one end of the trim and hold it so the short end of the angle.
Exterior window trim on vinyl siding if your home has vinyl siding and you d like to add vinyl window trim you will first need to remove the existing siding and j channel from around the windows.
Here s how they do it.