The Frame Matters: Maximizing VIG Performance in Window Assemblies

Vacuum-insulated glass (VIG) represents an exciting advancement in window technology, providing thermal insulation levels far beyond conventional double or even triple-pane glass. With its evacuated space between the panes removing nearly all conductive and convective heat transfer, VIG can achieve U-factors under 0.1 BTU/hr-ft2-°F – two to three times better than typical insulated glazing units (IGUs).

However, VIG’s game-changing insulation abilities depend heavily on the window frame and overall assembly design. Without thoughtful integration and robust framing, VIG units will not achieve their full performance potential. Thermal bridging, structural stresses, condensation risks, and lack of design cohesiveness can all undermine VIG’s insulating capacity and durability.

How Does the Frame Affect VIG Performance?

Traditionally, window frames have been notorious for thermal bridging—areas where heat easily transfers between inside and outside environments due to poor insulation properties or conductive materials. Such thermal bridges compromise the efficiency of vacuum-insulated glass by allowing unwanted heat transfer through framing components.

Thermal bridging through window frames is a major obstacle to maximizing VIG’s insulation. Aluminum and other conductive framing materials provide a path for heat to bypass the glazing and compromise the assembly U-factor. Proper thermal breaks are critical to prevent heat loss and achieve optimal VIG efficiency.

Importance of Thermal Breaks in Framing

To overcome this challenge, advanced framing designs with integrated thermal breaks have gained prominence. These specially engineered aluminum frames interrupt direct contact between internal and external surfaces, effectively minimizing heat flow through conductivity paths within windows systems.

Ensuring Framing Rigidity and Durability

Beyond thermal considerations, the window frame must provide robust structural support to protect VIG’s vacuum seal integrity over decades of use. Weak or excessively flexible framing places more load and shear stress on the VIG unit, increasing the chances of seal failure as the assembly ages.

Avoiding Condensation Issues

Condensation resistance is another critical framing consideration. Thermally inefficient frames cause interior surface temperatures to drop below the dew point, leading to condensation even with VIG’s low U-factors.

Seamless Design Integration

To maximize VIG’s benefits, the entire window assembly must be precision-engineered for seamless integration. Tight dimensional tolerances and cohesive design are essential to eliminate any thermal bypass.

Elevate Your Architectural Designs with FreMarq Innovations’ Superior Window Systems Optimized for VIG

When maximizing the benefits of Vacuum Insulated Glazing (VIG), the frame matters significantly. Thermal bridging can undermine VIG’s insulation abilities if proper framing isn’t considered. At FreMarq Innovations, we offer high-performance aluminum window systems with advanced thermal barrier technology designed for optimal integration with VIGs.

With our thermally-broken framing solutions optimized for VIG assembly performance, dependability becomes evident in every project you undertake. We’re committed to offering top-notch products that exceed industry standards, ensuring energy efficiency and overall building excellence. Our FortMax™ thermal barrier allows for an assembled U-factor of 0.098 (R-10)

Contact us today to learn more about how our expertise in thermally-broken frames and vacuum-insulated glazing can help meet your project requirements. Let us assist you in achieving superior energy efficiency and performance in your building envelope.

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