Curtain Walls

Curtain Walls

Brombal 4F1 and 4F2 Curtain Walls provide narrow sightlines and thermal efficiency.


  • Slim profiles with large expanses of glass
  • Wide range of curtain wall system options
  • Maximum glazing pocket of 2 3/16 “
  • Structural performance three times higher than aluminum
  • Cover material options: galvanized steel, stainless steel, Corten steel, brass
  • Sealing and water draining gaskets system
  • Extruded polyethylene foam for greater technical performance
  • Easily reinforced with steel structure to meet load requirements
  • Modular construction allows the option of incorporating operable windows and doors into the curtain wall system

Guaranteed Performance

  • Air, wind, and water – The unique gasketing system combined with the specific profiles of the metal sections, ensures maximum performance.
  • Strength and durability – The use of approved fittings and the structural strength of the sections and joints, allows for ideal operation.
  • Sound insulation – The presence of glazing seals and gaskets around the whole edge and the ability to fit thick glass, achieves ideal acoustic values.
  • Thermal insulation – The unique system for joining the steel profiles without any thermal bridging allows for great thermal efficiency.

Materials and Finishes

The Brombal Curtain Wall system is available in a variety of materials. As a standard option, all of our Brombal products are offered in a powder coat finish in any RAL color. They are also available in the materials listed below:

Galvanized Steel

Steel is an iron alloy with countless uses. Simple, tough, and perfect for a variety of uses, steel boasts great tradition and plays an irreplaceable role in the building industry…

Stainless Steel

Stainless steel is an iron alloy containing chromium, nickel, and molybdenum. It was discovered in 1913 by Englishman Harry Brearly after realizing he created a metal which resisted rusting when exposed to atmospheric elements…


Corten steel is a high tensile strength, corrosion resistant steel alloy which contains copper, chromium, and phosphorous. The name (Cor-Ten) reflects the special properties of this which allow…


Utilizing the highest quality brass in the fenestration industry, our products are made from 67% copper and 33% Zinc. This ratio is what allows the alloy to acquire a beautiful patina typical of old bronze…


Bi-Metal allows the flexibility of choosing 2 different types of materials to meet interior and exterior design demands. The ability to combine our available metal materials differently on each side…

Metal Wood

Metal-Wood is exactly as it sounds. The ability to combine our available metal materials on one side, and the warmth of wood on the opposite side is now possible. This allows you to carry…

Technical Data

  • Brombal utilizes a thermally broken curtain wall system available in the highest grade architectural metals.
  • Water tightness is ensured by a system of internal EPDM gaskets installed on sections made with weep channels for draining of any moisture infiltration.
  • Glazing or panels are inserted from the exterior and secured to the sections by a predrilled metal gasket clip.
  • The finishing trims are snapped onto the external clip.
  • The curtain wall system allows for various types of operable sashes to be inserted: thermally broken OS2 and EBE ranges are available.
  • View or download the Brombal brochure.



  • Minimum visible sightlines due to the high strength of the materials used
  • A product for all seasons: resistant to heat, water, cold, and wind, with low thermal expansion
  • Assembly and installation quicker and easier due to the 90-degree cut of the sections and the special clips to join mullions and transoms
  • System that may be used on any supporting structure
  • Paint process for powder coating mullion and transom sections with various RAL finishes
  • Mechanical assembly without visible welds and prefinished sections protected by tear-off film
  • System made with ecological and natural materials, and is recyclable


All of our units are shipped without glass, providing great flexibility for the selection of glass based on your specific needs. We work with the largest glass vendors in the country to provide the most energy efficient solution. Some of the vendors we work with are PPG, Cardinal, and other top glass manufacturers.

Please visit our FAQ section for more information on glazing.

To learn more about Steel Windows & Doors
and our entire product line, please contact us directly.