High thermal insulation

  • Reduction of thermal bridges: pre-fitted thermal insulation collar* (see cross-section below nb. 1)
  • High thermal insulation: double or triple** low energy Roto glazing

U-value of 0,80 W/m²K for Designo R8 (PVC) with the triple glazing Roto blueTec Plus (9P) according to the ‘Passiv house’ standard

* Optional on R7 and R4 RotoTronic and as standard on R8
** Triple glazing only for R8

Air permeability

  • High air permeability: vapour barrier included as standard in accordance with DIN EN 12207 (classification A3)
  • ‘Blower Door’ test (DIN EN 13829): double rubber seal to ensure air tightness requirement

More natural light

  • Greater light area*: slimmer external profiles for a greater light area compared to other windows on the market
  • More light: window height up to 1600 mm for optimal space utilisation and light yield (R4, R7, R8)

* For Designo R4 RotoTronic and R7

  • Greater energy savings: double or triple** low emissivity glazing and exterior sun screening to get maximum natural light whilst maintaining energy saving in winter and summer

** Triple glazing for Designo R8 only