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Concealed Frame Curtain Wall

Clean exterior lines, reliable weather performance, and custom-engineered glazing solutions for modern commercial and high-rise façades.

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Introduction

Concealed Frame Curtain Wall Systems

Concealed frame curtain wall systems create a smooth, uninterrupted glass façade by hiding the supporting aluminum structure behind the glazing. Widely used in commercial towers, hotels, office buildings, and premium residential projects, they deliver a refined exterior appearance while ensuring reliable structural performance, air and water tightness, and long-term durability.

Structural Details
TYPES

Concealed Frame Curtain Wall Options

  • Silicone Structural Glazed System
  • Semi-Unitized Concealed Frame System
  • Unitized Concealed Frame System
  • Concealed Frame Curtain Wall with Operable Panels

  • Silicone Structural Glazed System

    This solution bonds the glass to the supporting frame with structural silicone, creating a clean all-glass appearance from the exterior. It is ideal for projects that prioritize visual uniformity and modern architectural expression.

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  • Semi-Unitized Concealed Frame System

    This system combines factory-prefabricated components with on-site assembly, improving installation efficiency while maintaining design flexibility. It is well suited for mid- to high-rise developments.

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  • Unitized Concealed Frame System

    Pre-assembled in factory conditions and installed as large panels, this system ensures consistent quality and faster installation. It is widely used in high-rise and large-scale commercial projects.

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  • Concealed Frame Curtain Wall with Operable Panels

    This option integrates operable vents or windows into the façade while maintaining a clean exterior appearance, making it suitable for projects requiring natural ventilation and functional flexibility.

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Advantages

Benefits of Concealed Frame Curtain Wall Systems

Clean and Seamless Exterior Appearance
By hiding the aluminum structure behind the glass, the façade achieves a refined, uninterrupted surface that enhances the overall architectural image.
Reliable Air and Water Tightness
Engineered sealing systems ensure strong resistance to wind-driven rain and air infiltration, improving building envelope performance.
Flexible Design Integration
The system adapts to various glass types, panel sizes, and façade layouts, allowing architects to achieve diverse design concepts.
Compatible with Prefabrication
Available in semi-unitized and unitized forms, concealed frame systems support factory production, improving consistency and reducing on-site workload.
Balanced Aesthetics and Performance
It combines visual appeal with structural stability and long-term durability, making it a practical solution for demanding projects.
Applications

Related Applications

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Projects

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Why us

Why APEX Is Trusted for Concealed Frame Curtain Wall Projects

We combine façade engineering experience, controlled manufacturing, and project-focused support to deliver systems that meet both design intent and construction requirements.

  • Project-Based Engineering Support

    Each project is evaluated based on structural requirements, façade layout, and installation conditions to ensure a practical and buildable solution.

  • Controlled Manufacturing Quality

    From aluminum profiles to glass assembly, strict quality control ensures consistent product performance and installation accuracy.

  • Responsive Technical Support

    We support customers throughout design coordination, production, and delivery to improve efficiency and reduce project risks.

FAQS

Frequently Asked Questions

Quick answers to common questions about concealed frame curtain wall systems, covering design, applications, and customization.

What is a concealed frame curtain wall?
A concealed frame curtain wall is a glazing system where the supporting aluminum structure is hidden behind the glass, creating a smooth and continuous façade appearance.
Where is it commonly used?
It is widely used in office buildings, hotels, residential towers, and commercial developments that require a modern glass façade.
What is the difference from exposed frame systems?
The difference lies in appearance. Concealed frame systems hide the structure behind the glass, while exposed systems show aluminum caps or frames on the façade.
Can the system be customized?
Yes. It can be customized based on glass type, panel size, structural design, and project-specific requirements.
Is it suitable for high-rise buildings?
Yes. When properly engineered, it is commonly used in high-rise projects, often with unitized or semi-unitized systems.
Do you provide technical support?
Yes. We support system selection, drawing coordination, production follow-up, and project communication.
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