Under current legislation E-levels are constantly being lowered. Building materials must perform at a higher level than ever. Glass is something that has not escaped this reality. Glass covers a large part of a building’s exterior, and more efforts are constantly being made in manufacturing.

Low-emissivity or Low-E glass has a microscopically thin coating that is designed to reduce the heat transfer through windows, resulting in better insulation. Low-E windows can improve energy loss.

Newer technology is delivering glazing with spec results that give manufacturers the ability to keep heat inside buildings in the winter and out in the summer. This goes a long way to reducing energy costs, especially in larger, taller structures. To accomplish this, manufactures add a second hard coating to a double-glazing unit already equipped with a soft coating. So, in other words, the glass is actually insulated just like your house walls are.

Insulating glazings used for glass exteriors, such as the Thermobel VIP (Vacuum Insulation Panel) glazing,  can already achieve a Ug value of 0.15 W/m²K. Thermobel. That sounds complex. What it really means is that the glass is going to save the person who pays the buildings electric bill some more money.

It is important to note that many buildings are using more and more architectural glass. The glass provides both beauty and space for the person looking at it. Could you imagine being in a large tall building in the winter without this kind of glass technology? The heat would absorb through the glass and the building would be impossible to keep warm. Low-E glass makes it possible for the people inside to stay warm in the winter, cool in the summer, and the energy cost lower.