I have heard that EAGLE uses extruded aluminum cladding on their wood windows. What exactly makes aluminum extruded and why is it beneficial?
Extruded aluminum is developed by forcing the aluminum through a die to form a specific shape. This is better than aluminum that is rolled around the frame, which uses aluminum that is thinner and less durable. The aluminum cladding slides on the wood frame as opposed to being attached by screws or nails. This provides even less chance of moisture infiltration while allowing each component to expand and contract at its own rate. Aluminum cladding adds strength to the product by eliminating the possibility of warping and helps to resist damage through handling. Because of EAGLEs same-paint application on the sash and frame, there is a consistency in the minimal weathering that may occur.
