Windows, not doors
This page describes the CS 77 window variant. Door, fire-resistant and bullet-resistant variants need their own specifications and documentation.
REYNAERS ALUMINIUM / Aluminium windows
ConceptSystem 77
An insulated Reynaers window system with a 68 mm frame and 77 mm vent. A useful option when comparing practical window solutions by geometry, weather sealing and whole-element performance.
SPECIFICATIONS
ConceptSystem 77 / Functional
| Frame depth | 68 mm |
|---|---|
| Vent depth | 77 mm |
| Min. frame–vent sightline, inward opening | 89 mm |
| Vent glazing thickness | 4–63 mm |
| Uf — best catalogue value | 1.8 W/m²K |
| Uw — reference element below | 1.3 W/m²K |
| Air tightness | 4 (600 Pa) |
| Water tightness | E900 (900 Pa) |
| Wind load resistance | C5 (2000 Pa) |
| Acoustics Rw(C;Ctr) | 42(−2;−4) dB |
What these values apply to
Uw = 1.3 W/m²K: 1.23 × 1.48 m element, Ug = 1.0 W/m²K, warm-edge spacer, 102 mm sightline and 36 mm glazing. This is not the minimum 89 mm sightline configuration. Uf = 1.8 W/m²K is the best catalogue value.
Performance depends on dimensions, profile combinations, hardware and glazing. Each opening requires its own specification; catalogue maxima are not a guarantee for every element.
Variant availability, hardware and delivery terms in Ukraine must be confirmed for the project. A catalogue listing does not imply stock availability.
DESIGN CHECKS
From a profile to a working element.
Sightlines
The narrowest profile combination is not suitable for every vent. Check frame, vent and transom combinations for each opening.
Glazing and installation
Calculate Uw using the actual glazing and dimensions. Agree structural support, drainage and perimeter sealing separately.
Other Reynaers systems
START A PROJECT
Check this system for your project.
Send the opening dimensions, elevations and intended opening types. We will review glazing, hardware and installation requirements together.
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