Double-glazing, or insulated glazing as it is called in many contexts, is the end result of a process that combines multiple panes of glass into a single window or sheet. Double-glazed glass gets a lot of attention, and for good reason. There are numerous benefits to double-glazed glass. Most notably, double-glazed glass is extremely energy efficient and reduces outside sound. Because of these factors, double-glazed glass is an essential building block of many residential and professional buildings.

What exactly makes double-glazed glass so effective?

To answer that question, we have to look at the construction of an insulated glass unit, or IGU. An IGU is constructed by taking two (or more) panes of glass and fixing them into a system with a small pocket of air or gas in between. The air pocket is designed to regulate temperatures on both sides of the pane so as to not transfer unwanted heat, or let any indoor heat escape.

What’s the catch?

The added benefits to a double-glazed panel do not come without a downside. Because of the construction required to produce the product, double-glazed panels are more expensive than their single-glazed counterparts. However, when energy efficiency and sound reduction are paramount, double-glazed windows are a strong contender.

The Building Blocks

The components that make up an IGU make a difference, too. A regular annealed piece of glass is limited by its qualities as a very simple piece of glass. However, using pieces of low-emissivity glass as a building block can increase the efficiency of the panel even more. When using a double-glazing unit, consider upgrading to a low-e construction. The benefits to your customers may just be worth it.

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