These windows and doors achieve industry-leading energy efficiency by combining a proprietary uPVC formulation, a wide range of glazing thickness capabilities and compression-seal technology. The system achieves thermal performance up to 45 percent more efficient than comparable thermally broken aluminum windows.
System 4500 windows and doors are a versatile solution for commercial construction projects, surpassing aluminum systems on many attributes. uPVC is recognized in the industry for its long service life. They’re constructed with material that greatly reduces leakage potential and the need for costly sill pans/pan flashing systems.