How To Add Crown Molding On Windows Outside?

This video tutorial by Old House general contractor Tom Silva demonstrates how to install polyurethane curved moulding on an arched window. The tutorial covers the process of trimming out a window with molding, including the use of a caulk gun, level, miter saw or coping saw, nail gun or hammer, safety glasses, and dust mask. Crown molding can be intimidating due to uneven walls and difficulty in nailing. However, this three-piece system can help.

To install crown molding, measure, cut, and build window casing made of cellular PVC, solid wood, poly-ash boards, or any common molding material. Use a self-locking C-clamp to secure a short 1×4 to the saw table and position the board at the correct distance from the saw’s fence to hold the crown at the proper angle.

In addition to installing crown molding, homeowners can also transform their space and boost its value by installing exterior window molding. This simple method can replace shutters and works well in tight places. The video provides tips and techniques for installing decorative crown molding, ensuring a finished look for a home’s exterior.