4F2 profiles for thermal break add-on curtain walls | facade galvanised steel stainless steel corten  steel brass | Seccosistemi thermal break
4F2 profiles for thermal break add-on curtain walls - thermal break galvanised steel stainless steel corten  steel brass | Seccosistemi


Thermal break curtain wall that may be applied to a load-bearing substructure with external cover available in four materials

  1. load bearing substructure
  2. perimetric EPDM sealing gasket system
  3. substructure joining profile
  4. variable thermal break profile for glazing of up to 50mm
  5. pre-drilled cover device
  6. cover
Freedom in the design of the elevation with thermal break curtain wall for the loadbearing substructure 4F2


4F 2 is a system for thermal break add-on glass faҫades of large dimensions, with the possibility of utilizing and combining on the interior and on the exterior different materials 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 bright faҫades with extensive glass surfaces, leaving the designer maximum freedom to prepare the design of the views and their structure.
4F 2 with its complete range of profiles and gaskets, offers made-to-measure solutions for high-performing glass structures of any type and thickness.
The covers in steel, stainless steel, corten steel and burnished brass with their reduced size of 50 mm enhance the views with the qualities of lightness and elegance, leaving glass and the light itself as the protagonists.
Performance of the 4F 2 has been tested by the best European certification laboratories in conformity with the standard EN 1383 regulations.

4F2 facade

system and performance

4F 2 is a system for thermal break add-on curtain walls that can be applied with specific profiles and gaskets to each welded girder (classical IPE, HEA in steel or stainless steel) or wooden girder, guaranteeing the same features of high-level performance.
Water-tightness is ensured by a system of gaskets in EPDM and by grooved profiles for the run-off of any seepage. The system allows for installation of glazing of up to 50 mm thickness, inserted frontally and secured to mullions and transoms by means of 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
under reference standard EN 13830

size and variations

The size of the internal profiles and external covers is 50 mm, 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

material for covers

4F 2 covers are available in galvanized steel - in a wide range of colours and super cial nishes – in AISI 304 brushed stainless steel, in AISI 316L polished or Scotch-Brite stainless steel, corten steel and in brass (OT67 copper alloy).

galvanized steel
stainless steel
corten steel

application options

4F 2 can be fixed to any welded or customised girder.

IPE welded beam
rectangular pipe
customised welded girder
wooden girder