Some extra information
Martec Engineering
Martec Engineering
0141 646 5220
Case Studies

Alleyn’s Lower School, Dulwich, London

Grafton Street, Mayfair, London

PRU, Southwark, London

Royal Central School of Speech and Drama, Swiss Cottage, London

RAM Brewery, Wandsworth, London

Charles Wells Brewery, Bedford

Secondary Glazing EI 60 Fire Rated

Secondary Glazing EI 60 Fire Rated

The thermally broken Janisol Arte steel profile series is ideally suited to renovation Typical, slender glazing in the Bauhaus style can be perfectly reconstructed with the extremely slimline profiles, which is suited to inward and outward opening windows.


  • Outstanding thermal insulation with Uw values from 1.3 W/(m²K) for windows


  • Very narrow profile face widths of 25 mm and 40 mm for slimline construction solutions with the largest possible proportion of glass
  • Inward and outward opening window solutions possible
  • Wide range of window opening types: side hung, bottom hung, top hung and projected top hung


  • New: TRAV approved

Enhanced function

  • New: horizontal pivot window
  • New: sliding door