Q: Is the Low-E coating inside vacuum insulating glass mandatory? Can we omit it if a client demands ultimate light transmittance?

A: To achieve the optimal heat transfer coefficient (U-value), the Low-E coating inside vacuum insulating glass is essential.

Heat transfer through glass primarily occurs via three mechanisms: conduction, convection, and radiation. While the high-vacuum cavity inside vacuum glass effectively eliminates heat conduction and convection, a Low-E coating remains indispensable for blocking infrared thermal radiation. LandVac titanium vacuum insulating glass (LandVac) achieves an exceptional balance between high transparency and thermal insulation, delivering a U-value as low as 0.5 while offering a visible light transmittance of up to 80%.