Primo Custom Steel Windows

All Available with the Awesome Thermal Comfort Provided by:

IQ Radiant Glass®️

With an installation depth of only 60 mm, the thermally broken steel profiles achieve excellent heat insulation values and thus make an active contribution to environmentally compatible, sustainable building. The assembly and manufacture of Janisol Primo and combination with Janisol systems are simplified by the use of identical profile cross sections.

Product details


Materials / surface finishes


  • Strip-galvanised steel, suitable for powder-coating or stove-enamelling


Window and opening types

  • Single- and double-vent windows, with and without fixed side panels or transoms 

  • Side-hung, turn-tilt, bottom-hung, top-hung and double-vent windows 

  • Fixed lights



  • Concealed or surface-mounted fittings 

  • Integrated or fitted electric drives


Special technical features


  • Installation depth 60/64 mm 

  • Special geometries (circular arches, trapezoidal windows etc.) 

  • Structural glazing openings as special solution 

  • Vent weights up to 180 kg


Test certificates

CE marking in accordance with product standard EN 14351-1

    •    Tightness against heavy rain until class 8A

    •    Air permeability until class 4

    •    Resistance to wind load until class C4

    •    Airborne sound insulation Rw 45 db

    •    Coefficient of thermal transmittance Uw > 1.0 W/m2K

    •    Shear connection in accordance with EN 14024  

    •    Burglary protection EN 1627 until RC (WK) 3 

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©2018 by IQ Radiant Glass Steel Windows

IQ Radiant Glass ®

Villanova, Pennsylvania,19085, USA

 610. 246.3922