Glostar Metal Integrated Insulation Curtain Wall System – VF

Product Overview

The Glostar Metal Integrated Insulation Curtain Wall System – VF (Ventilation Function) is a naturally ventilated, factory-prefabricated facade solution that seamlessly integrates operable opening vents into high-performance insulated metal sandwich panels. Designed for high-rise office towers, commercial buildings, and public facilities where indoor air quality and occupant comfort are priorities, the VF system delivers the same fire safety, thermal insulation, and structural performance as the standard MIICW series—with the added benefit of natural ventilation.

By incorporating a recessed unit design with solid opening vents on the inner face and ventilation louvers integrated into the exterior projection, the VF system achieves a clean, uninterrupted architectural appearance while enabling fresh air intake without mechanical systems. This design eliminates the need for externally mounted louvers or unsightly window openings that compromise facade aesthetics.

Core Performance Features

Natural Ventilation – Fresh Air, Zero Energy

The VF system leverages three natural ventilation principles to bring outdoor air into the building:

• Single-Sided Ventilation: Air flows through openings on one facade, driven by wind pressure fluctuations

• Cross Ventilation: Air enters from one side and exits from the opposite side, driven by wind pressure differences

• Stack Ventilation: Warm air rises and exits through upper openings, drawing cooler air in from lower openings (driven by thermal buoyancy)

Natural ventilation is a free, renewable, and healthy resource that significantly improves indoor air quality while reducing or eliminating mechanical ventilation energy consumption. This translates to lower operational costs and a reduced carbon footprint for building owners.

Superior Air & Water Tightness

Unlike traditional aluminum veneer + frame-assembled operable vents—which typically use only a single seal rubber—the VF system incorporates multiple pre-embedded seal rubbers at all interlocking joints. This ensures excellent air permeability (Grade 4) and water tightness (Grade 5), preventing drafts, water ingress, and energy loss while maintaining the benefits of natural ventilation.

A1 Fire Safety – Rock Wool Core Protection

The VF system shares the same fire-resistant rock wool core as the standard MIICW series, achieving Class A surface fire resistance (GB8624 A2 non-combustible) and Class I flame-spread classification (BSI BS476 Section 7). Fire resistance testing confirms 30-minute resistance at 50mm thickness and 60-minute resistance at 80mm thickness.

Thermal Insulation – Energy Efficiency Maintained

Even with the integrated opening vent, the VF system maintains thermal conductivity values ranging from 0.34 to 0.62 W/m²·k depending on panel thickness. The dense rock wool filling inside the opening frame ensures uninterrupted insulation performance, while the thermally broken aluminum frame design minimizes heat conduction and prevents thermal bridging—meeting 75% building energy conservation standards.

Acoustic Insulation – Quiet Comfort

The dense rock wool core and multi-seal rubber gaskets deliver effective airborne sound insulation, maintaining acoustic comfort even when the opening vent is closed. The VF system significantly reduces external noise penetration—essential for offices and buildings located in urban centers.

Durability & Weather Resistance

The exterior face sheet features PVDF (LUXACOTE) or POLYESTER coating systems, offering exceptional UV resistance, color retention, and corrosion protection. Accelerated aging tests confirm:

• High-temperature/humidity exposure (80°C, 80% RH, 24h): 99.9% tensile strength retention

• Formaldehyde emission: E1 grade (GB 18580-2001) – safe for indoor use

• Expected service life: 30+ years with minimal maintenance

Technical Specifications

Thermal & Structural Performance Data (Base Panel)

Note: VF series shares FP series structural performance; ventilation integration does not compromise panel strength.

Installation & Construction Efficiency

The VF system employs the same socket-and-plug interlocking assembly as the standard MIICW series, with the opening vent unit factory-prefabricated as an integrated component. Key construction advantages include:

• Factory prefabrication: Complete opening vent units arrive on-site ready for installation

• Modular dry-hung assembly: Clip fixation system eliminates screw penetration on the exterior surface

• Integrated design: No separate louver installation or frame assembly required on-site

• Installation speed: Up to 60% faster than traditional aluminum veneer + frame-assembled operable vents

• Quality control: All sealing and ventilation mechanisms tested at the factory

Applicable Standards & Certifications

Why Choose Glostar MIICW-VF?

Typical Applications

Ventilation Principles Supported

For project-specific technical recommendations, design support, or sample requests, contact the Glostar engineering team directly. We respond within 24 hours to all inquiries.