How does LandVac tempered vacuum glazing maintain its insulation value / U-value?
2024-01-04
Vacuum insulated glazing is a type of glass that has a very low thermal conductivity due to the absence of air or gas between two glass panes. This means that it can effectively prevent heat transfer and reduce energy loss. Vacuum glass is also known as evacuated glazing or vacuum insulated glazing.
LandVac tempered vacuum glazing has the lowest U-value of 0.4 W/(m2·K) for transparent heat insulation. U-value, also known as thermal transmittance, is a measure of how much heat passes through a material. The lower the U-value, the better the insulation performance.
So how does LandVac achieve such a low U-value? The answer lies in its innovative design and manufacturing process. LandVac uses two layers of tempered low-emissivity (Low-E) glass that are separated by a 0.3 mm vacuum cavity. Low-E glass is a type of glass that has a thin coating of metal or metal oxide that reflects infrared radiation and reduces heat loss. The vacuum chamber eliminates the convection and conduction of air or noble gas, which are the main sources of heat transfer in conventional double-glazed windows.
Besides, the edge seal technology also plays a crucial part in maintaining this excellent thermal insulation performance. Not like conventional Hybrid or Triple insulating glass whose thermal insulation performance can be affected due to the leak of the frame, leading to the escape of the noble gas and condensation to form. LandVac vacuum glazing adopts a patented lead-free alloy as the sealing material around the vacuum chamber. The welding process is completed in a vacuum state to minimize the additional stress after welding. The quality and service life of the sealing is guaranteed by the online non-destructive flaw detection instrument.
LandVac tempered vacuum glass is an advanced product that offers superior thermal insulation, sound insulation, condensation resistance etc. It can be used for various applications, such as architectural windows and doors, skylights, and heritage window restoration. LandVac can help reduce energy consumption, greenhouse gas emissions, and noise pollution while improving indoor comfort and aesthetics.
