The W75 Thermally Broken profile keeps the streamlined and clean design of the FerroFinestra family while offering superior thermal insulation. It features flush and overlapping aesthetics, an efficient polyamide insulating core, and a profile design that accommodates the latest selective insulating glass. The W75 TB system responds to the most demanding projects for all types of windows and doors, including External Bi-Fold Doors, where the highest aesthetic and performance requirements are expected.