What is Vacuum glazing? New effective technology for efficient buildings
Vacuum glazing as a highly efficient window technology that helps insulate and soundproof buildings. More efficient and with much slimmer profiles than standard or thin double glazing, vacuum glazing will help improve the efficiency of standard and special structures such as.
How Does Vacuum Glazing Work?
The concept behind vacuum glazing is simple. Standard double glazing has 2 panes of glass separated by a cavity filled with a noble gas, such as argon. The purpose of the denser gas is to make it harder for heat to pass through.
Rather than using air or other mixtures of gas between the panes of glass, vacuum glazing instead employs a layer of nothing. With there being nothing between the glasses, there is nothing to transfer the heat between the panes, and so it can’t go anywhere.
In order to prevent further heat loss, the other elements of the window can also be improved to make them more efficient. All the different parts of the window, from the frames down to the minute pieces such as micro spacers and bars can be made more efficient.
There are improvements that can be made to the glass itself – such as a low emissivity coating, and specialist sealants to verify optimal efficiency for the long term.
The major advantage of vacuum glazing
The major advantage of vacuum glazing is the greatly improved efficiency. It also has superb soundproofing qualities.
Another advantage of this technology is how thin the units can be. The gap between standard or even slimline double glazing can be from 10 – 25mm. With vacuum glazing, the gap is reduced to a mere 0.6mm. This means that the windows can appear to be single glazed units with none of the unsightly inner cavity showing.
What are the applications of Vacuum Glazing?
Vacuum insulated glass is suitable for any property and will improve its efficiency. However, as it is somewhat more expensive than other units, it’s used in more specialised applications where either the slimmer profile or the improved heat insulating properties are more important than cost.
An example of a situation where energy efficiency is needed is the passive house system.
For applications where the ultra thin profile is needed is for heritage windows in listed buildings. This is where an older property would have been originally fitted with single glazed windows. When replacing the windows, the planning authority requires the new units to be single glazed as per the original installation. This is not always acceptable to home owners who want lower heating bills and warmer rooms. In this case, the ultra thin profile of vacuum glazing is an excellent solution that keeps both parties happy.
Final verdict to take home on vacuum glazing
To conclude, for warmer, quieter and more relaxing rooms, choose vacuum glazing. They will improve the appearance of your home, make it more efficient and lower your contribution to global warming.