The 4F2 is a thermal break curtain wall that can be applied to a load-bearing substructure, allowing for freedom in the design of the elevation of the façade.
The 4F2 is a system for thermal break add-on glass façades of large dimensions, with the possibility of utilizing and combining different materials on the interior and exterior such as steel, stainless steel, corten, brass, and wood.
The use of mullions and transoms of great inertia and reduced size allows for the construction of façades with large glass surfaces, leaving the designer maximum freedom to configure the design of the elevation and their structure.
This curtain wall system, with its complete range of profiles and gaskets, offers tailor-made solutions for high-performing glass structures of any type and thickness. The covers, with a visual footprint reduced to 50 mm, give the façade qualities of elegance and lightness and allowing for the glass and light to dominate.
The performance of the 4F2 system has been tested by the best European certification laboratories according to the standard En 1383 regulations.
4F2 façade
System and Performance
The 4F2 is a system for thermal break add-in curtain walls that can be applied by means of special profiles and gaskets to any welded beam (classical IPE, HEA in steel or stainless steel) or wooden girder, guaranteeing the same high-performance characteristics.
Watertightness is ensured by a system of EPDM gaskets and profiles with gutter channels for the run-off of any seepage. The system allows for the insertion of glazing up to 50 mm thick, inserted from the front and secured to mullions and transoms by a stainless steel external cover pre-drilled for the application of screws.
wind resistance - allowed load | ± 2,0 kN/m2 |
wind resistance - increased load | ± 3,0 kN/m2 |
impact resistance | I5 / E5 |
water tightness – static | RE 900 |
water tightness – dynamic | 250 Pa/750 Pa |
air permeability | AE |
Technical Specifications
- Load-bearing substructure
- Perimeter EPDM sealing gasket system
- Hooking profile to the substructure
- Variable thermal break profile for glazing up to 50 mm
- Pre-drilled metal seal holder presser
- Cover
Visual Size and Variants
The size of the internal profiles and external covers is 50 mm, while the depth of the cover is 16 mm for the mullions and 13 mm for the transoms.
- application to mullion | 50 mm face section
- application to transom | 50 mm face section
Cover Materials
4F2 covers are available in galvanized steel in a wide range of colors and surface finishes, in AISI 304 brushed stainless steel, in AISI 316L polished or Scotch-Brite stainless steel, in corten steel, and in brass (OT67 copper alloy).
- galvanized steel
- stainless steel
- corten steel
- brass
- Application Options
The 4F2 curtain wall system can be applied to any type of welded or customized beam.
- IPE welded beam
- rectangular pipe
- customised welded girder