Metal Dormers, which are commonly build out of materials that can be soldered such as copper, are structural elements of buildings that project from the slope of the roof surface.
Louvered dormers are commonly used for HVAC, exhaust plenums or simply for decoration. Window dormers are normally added to create extra usable space in a roof structure along with the ability to allow for ventilation and light.
Copper, Zinc, Lead Coated Copper, Freedom Gray and even Stainless Steel and Galvanized Steel are preferably used for the manufacturing of these items since such metals can be soldered, allowing for long lasting joints. Galvanized Steel eventually rusts, and Stainless Steel may be too reflective, which is one of the reasons why copper is the most popular material for dormers.