Inward Opening Window System: Developed to allow the typical European inward opening window to cope with the extreme climate in Asia-Pacific region, it embody the descent of German window technology and bring the comfort to the end-users.

  • Flushed frame and sash on outside surface
  • European standard hardware groove
  • Flexible glass option with thickness from 5 – 32mm
    • Air Tightness: Class 4 (600Pa)
    • Wind Load: BE3500
    • Water Tightness: 9A
    • Acoustic: STC 39
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Roto Frank Asia Pacific