Bronze is the ultimate in metal frame doors and windows.  Architectural bronze can be extruded to many shapes. Bronze produces a rich, reddish old-gold color.  Bronze has been used for years because of its natural resistence to the elements.  Bronze is also very machinable, so we can machine solid bronze glass stops to match any profile you can dream up.  Bronze will develop a beautiful blue-green patina as it ages.  This takes about 5-7 years at the seacoast or industrial atomospheres. The development of the patina takes longest in dry climates, and on vertical surfaces.  The Bronze Age was named after the metal. There are many artifacts that are centuries old made from Bronze.  The beauty of a finely designed and crafted door or window from solid bronze is breathtaking.