Introduction
The CS 104 window and door system by Reynaers offers exceptional insulation values for aluminum profiles, making it ideal for passive buildings. The system achieves a Uf-value as low as 0.88 W/m²K through patented insulation technology using special foam within the insulation strip chambers.

Insulation and Air Tightness
The system's high insulation levels are complemented by advanced gaskets ensuring superior wind and water tightness. Air tightness is crucial for energy efficiency, and CS 104 excels in this area.

Performance in Extreme Conditions
CS 104 is designed for extreme conditions, with water tightness values up to 900 Pa for windows and 300 Pa for doors, making it suitable for coastal areas and high altitudes. The increased profile depth (104mm for vents) enhances strength and stability, allowing for large triple-glazed surfaces.

Technical Characteristics

• Windows: Minimum visible width for inward opening frames is 69mm, vents 48mm. Overall system depth is 95mm for frames and 104mm for vents.
• Doors: Minimum visible width for inward opening frames is 82mm, vents 71mm. Overall system depth is 95mm for both frames and vents.
• Glass thickness is 65mm, with dry glazing using EPDM or neutral silicone.

Performance Metrics

• Thermal Insulation: Uf-value down to 0.88 W/m²K depending on frame/vent combination and glass thickness.
• Air Tightness: Maximum test pressure of 600 Pa for both windows and doors.
• Water Tightness: E900 (900 Pa) for windows, 7A (300 Pa) for doors.
• Wind Load Resistance: Level 5 for windows, level 2 for doors, with deflection class C.

Conclusion
The CS 104 system by Reynaers provides innovative, energy-efficient, and sustainable solutions for modern architecture, offering high performance in insulation, air tightness, and resistance to extreme weather conditions.