How Does the Number of Panes in a Window Affect Energy Efficiency?

Every homeowner is told that new windows will enhance their home’s resale value and help save on their electric bill. They know how the windows prevent a room from becoming a sauna in summer and a meat locker in winter. Homeowners have heard about multiple panes in replacement windows in Windsor but might not understand how they facilitate energy efficiency. Here’s how windows with multiple panes function.

Three-Paned Windows

Windows with three panes of glass have pockets of either argon or krypton gas between the panes. Since cold and heat fight windows and doors to get to each other, they’ll be disappointed when trying to get around the triple-pane glass. This will keep the power bill at a reasonable level, with energy savings in the range of 50 to 75 percent.

Add low-e coating to two of the panes, and homeowners will have more reason to cheer. The low-emissivity coating on glass prevents the UV and other harmful rays of the sun from entering a room, reflecting the heat back outside. In winter, it does the opposite and keeps the heat inside.

Double-paned Windows

More homeowners go with double-pane replacement windows from Windsor due to being less expensive than triple-pane windows. Therefore, there’s only one pocket of gas between the panes. This will still keep the power bill at a reasonable level with the two panes saving about 25 to 30 percent on your power bill.

Single pane windows

You only see single pane windows in homes older than mid-century. There’s only that one thin pane between you and the elements (and baseballs, golf balls, and home intruders.) They cost the least of the three options but keep out less heat and cold than the others. Your power bill will reflect this.

Whichever style homeowners can afford, whether triple, double, or single, the gas pockets between panes and the low-e coatings on the outside panes are what constitutes energy efficiency in quality replacement windows.