LandVac published the second episode of the most frequently asked questions regarding LandVac Titanium VIG.
Q: What is the lowest U-value achievable by LandVac Titanium Vacuum Insulated Glass?
A: The lowest U-value for LandVac Triple Silver Low-E vacuum glass is 0.4 W/(m²·K).
Q: How is the deformation of LandVac Titanium Vacuum Glazing calculated?
A: The deformation (deflection) calculation for LandVac Titanium Vacuum Glazing is strictly performed in accordance with the industry standard “Technical Specification for Application of Vacuum Glass in Buildings”.
Q: What is the K-value (U-value) of LandVac vacuum glass if it is made with clear glass instead of Low-E coating?
A: If LandVac Titanium vacuum insulated glass (VIG) is manufactured entirely with standard clear glass (without Low-E coating), its K-value is approximately 2.2 W/(m2\K).
The Reason: The core function of the vacuum cavity is to eliminate heat transfer through conduction and convection. However, it cannot block thermal radiation. Without a Low-E (Low-Emissivity) coating to reflect infrared heat, the radiation still passes through, limiting the thermal insulation performance.
Note: If concerned about the slight “haze” or tint associated with standard Low-E glass, LandVac recommends using High-Transmittance Low-E or Ultra-Clear (Low-Iron) Low-E glass. These options meet strict energy-saving requirements while providing a crystal-clear, high-transparency visual effect.