Winco Window Co. introduced its most thermally advanced window series, the 8325 series. All framing members are thermally broken with two glass reinforced polyamide struts that stitch the two aluminum extrusions together. Thermal strut involves two separate extrusions and joins them through the use of engineered structural polyamide. Both the inside and outside aluminum profiles are extruded independently with a cavity that will ultimately receive the strut. Each profile can be coated or anodized independently, allowing for design flexibility and potential cost savings.