Our copper cupolas are custom hand-made from 16oz. sheet copper and will last a lifetime. They can be ordered chemically treated to create the green patina finish or you can let them age naturally. The vents are fully functional and the cupola will work as another source of attic ventilation. Our copper cupola vents also have a wire mesh soldered on the inside to keep out pests. As you can see in the pictures, they are a beautiful addition to any roofline. All copper flashing and accessories needed for a complete installation are included. These copper cupolas are manufactured and shipped in three separate sections: the base, the vents, and the cap with finial. Copper Cupola Installation Instructions.