Skylights, sloped roofs, curtain walls... double-pane glazing may cost you more

Let us begin with a real scenario. Leadership of company A is amazed by an energy audit report that has just come out. Annual electricity expenditure: RMB 22 million. Of this, more than 20% is attributable to avoidable heat loss caused by inadequate insulation performance. In other words, over RMB 4 million per year in electricity cost of company A is effectively “los...

In Part I we reviewed the structural principles and structural-strength differences of the three most common edge seals. In Part II we will further examine the three edge seals, covering environmental resistance, environmental compliance, safety, and edge thermal performance.

Vacuum insulated glazing is made by removing air from the cavity between two glass panes, which reduces heat transfer and improves thermal performance. To better maintain the vacuum and reduce gas leakage over time, the edges of the two panes are supposed to be hermetically sealed. In other words: A VIG unit is like a dewar And a VIG edge seal functions like a dewar s...