Thermally Broken Steel USA

Thermally Broken Steel USA is a premier manufacturer in the architectural fenestration and building materials industry, specializing in high-performance steel and bronze windows, doors, and curtain wall systems. Designed explicitly to meet the rigorous demands of modern, sustainable architecture, their products utilize a patented two-step thermal break technology that delivers exceptional thermal insulation while maintaining the ultra-slender sightlines desired by high-end residential and commercial designers. Their custom fabrication capabilities allow architects to specify massive glazed openings, structural curtain walls, and historically accurate replacement profiles without compromising on structural integrity or energy efficiency. For industry professionals seeking luxury fenestration solutions, key search keywords include thermally broken steel windows, architectural steel doors, slim profile steel frames, and custom bronze window systems.

Specification Highlights:

• Patented Thermal Break Technology: Features a two-step bonding process utilizing a mechanical polyamide press-fit combined with a fiberglass-reinforced, high-density polyurethane resin to deliver an impressive average frame U-value of 0.28 BTU/hr*ft2F.
• Ultra-Narrow Sightlines: Fixed windows feature sightlines as narrow as 1-1/16 inches (27 mm), and casement window profiles measure just 1-7/8 inches (47 mm) wide, maximizing glass surface area and natural light transmission.
• Premium Architectural Materials: Systems can be custom fabricated in cold-formed Painted Galvanized Steel, Marine-Grade 316L Stainless Steel, Cor-Ten Steel, and OT67 Architectural Bronze with multiple natural patina options.
• Deep Glazing Pockets: Engineered frame designs accommodate insulated dual-pane or triple-pane glass configurations up to 2 inches (50 mm) thick, allowing for high-performance low-E coatings, restoration glass, or specialized acoustic glazing.
• High Moment of Inertia Curtain Walls: The 4F steel curtain wall series features a 2-inch (50 mm) standard mullion width with heights up to 7 inches (180 mm) and concealed internal coupling components to support massive spans under high static loads without intermediate structural supports.