REHAU tilt-turn windows

System 4500 tilt-turn windows

A very unique product for large openings in both residential and commercial markets.
The tilt-turn is the dominant window style in Europe, now gaining popularity among discerning architects, designers and homeowners in North America. The System 4500 is a versatile design featuring three windows in one: An inward opening casement in the turn position, a secure top-venting hopper in the tilt position and a tightly sealed picture window when closed. 

Matching doors in a variety of configurations are available.
The system is available in white, beige or clay and can be laminated with solid color or wood-grain foils.


  • Multiple locking points and dual weather seals for optimal air and water tightness.
  • Up to 1 3/8 in glazing capability for increased energy efficiency and acoustical performance.
  • Large chambers for accommodation of reinforcements required for large openings and heavy commercial applications.
  • High-definition finish for weather and stain resistance and ease of maintenance.
  • Compatible with REHAU Hardware for superior longevity.


Test ResultsDescription
NAFS (PG)up to AW-PG100


Impact Resistant DP-65 (HVHZ)
ASTM E90 Acoustical (STC)up to 43 dB

(*based on simulation)

down to 0.17*

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