The TB50 SG-CFV concealed framed vent is a thermally improved window system that integrates smoothly with structurally glazed curtain wall façades. It sits within the grid and keeps the external face clean and uninterrupted. This makes it ideal for modern buildings that require a sleek and uniform appearance.
The system offers strong thermal performance and helps reduce external noise. Because of this, it supports better comfort in offices, apartments, schools and public buildings. Its design helps improve energy efficiency without affecting the look of the façade.
The TB50 SG-CFV supports glazing sizes from 28–44 mm. You can use double or triple glazing depending on the required performance level. This flexibility makes it suitable for both high thermal needs and improved sound control.
Each glazing unit bonds directly to the frame using an approved structural method. This creates a secure seal and long-lasting strength. The vent also keeps strong weather tightness, even in exposed or high-level areas. This reliability helps maintain consistent performance across the façade.
The slim external profile allows the vent to blend into the curtain wall grid. It provides natural ventilation without changing the external geometry of the façade. This is useful when a project needs airflow but must maintain a smooth structural glazing finish.
The system works well in new builds and refurbishment projects. It fits buildings that need efficient ventilation and high thermal values while keeping a clean architectural design. Its ability to integrate directly with the TB50 SG framework makes it a practical and reliable choice.
If you’re looking for more information regarding our TB-SG-CFV window system, you can get in touch here.
| EN ISO 1077-1 | Uw Whole window value: * | 1.8 W/m²K or less |
| BS 6375-1:2009 | Air permeability | Class 4 |
| BS 6375-1:2009 | Water tightness | Class E1500 |
| BS 6375-1:2009 | Wind load resistance | Class 5 2000pa |
| BS 6375-2:2009 | Operating forces | Class 2 |
| BS 6375-2:2009 | Mechanical strength | Class 3 |
| BS 6375-2:2009 | Repeated opening & closing: (20,000) | Class 3 |
*Whole window U values are a combination of the frame and glazing thermal performance and as such will vary with the specification of glass utilised. Please consult with the APA technical team for more specific performance information.