MasterLine 8 window

Crafted for masters

MasterLine 8 is a unique window system that combines countless design opportunities with first in class performance in terms of thermal insulation, air-and water-tightness, and production speed. The system offers a wide design range and ultimate performance regarding thermal insulation and air- and water tightness. This new generation of innovative window solutions mirrors the current architectural trend towards maximising daylight while offering ultimate insulation levels.

MasterLine 8 features 3 different levels of insulation for high insulated, low energy and even passive houses. These different levels of insulation are achieved by the integration of new and clever materials. The unique concept makes it possible to combine an extensive range of window opening types, design variants, and different levels of thermal insulation. The design variants, each with their own distinct look and feel, make MasterLine 8 suitable for any architectural style.


  • 40mm thermal break
  • Uf value of 1,9 W/m²K for a frame-vent section of 119mm on the standard insulation level.
  • Water tightness of 1200Pa,
  • Air tightness of 600Pa with air loss reduction of 80% below class 4 maximum
  • Excellent thermal values
  • Glass weights up to 200kg for a turn-tilt window.
  • The standard insulation level is composed of profiles with polyamide insulation bars and EPDM weather gaskets.
  • Wind load resistance C4 (1600 Pa)
  • Acoustic performance 45 (-1;-4) dB dB
  • Burglar resistance RC 2/WK 2 RC 3/WK 3