Canadian Line 8501® is composed of RAU-FIPRO™, a proprietary fiber composite material similar to those employed in aeronautic construction and racing vehicles for outstanding strength and load capacities.

Canadian Line 8501 was designed special for Canada weather considering extreme temperatures during the winter/

In fact, it is the first fully-reinforced polymer window profile system that doesn’t rely on steel for its strength.

RAU-FIPRO, specially developed for Canadian Line 8501, affords window construction benefits only imagined before. Canadian Line 8501 does not only provide superior structural integrity but also excels when it comes to thermal and acoustical performance.

With the Canadian Line 8501 design, tilt-turn, hopper and fixed configurations are possible.


  • RAU-FIPRO profile core for excellent stability and torsional rigidity.
  • Compression-seal technology for superior thermal and acoustical performance.
  • Patented integrated reinforcement system for the highest degree of strength and security.
  • High-definition finish for weather and stain resistance and ease of maintenance.


Test Results Description
NAFS (PG) up to CW-PG70
ASTM E90 Acoustical (STC) up to 45 dB

(*based on simulation)

down to 0.13*

Top-Performance Ratings for Thermal Insulation, Sound Insulation and Increased Security 

Since the Canadian Line 8501 profile design is fully reinforced with fiber composite, the use of steel can be avoided and thermal bridges no longer occur. With its center seal and optional thermo-modules, Canadian Line 8501 achieves thermal insulation values up to the stringent passive house standard.


Technical information: Canadian Line 8501

Brochure: Canadian Line 8501