Glossary

Picture Window

This window is stationary and does not open. This allows for larger sizes and makes them more energy efficient. They are often combined with casement or single/double hung windows for maximum function in a space.

Double / Triple Pane

Refers to the number of panes of glass within a window. While a minimum of double pane windows are required in all residential applications in Canada due to our weather, more people are moving towards triple pane as they are more energy efficient.

Divided Lites

A window that has multiple panes of glass separated by muntins or grilles in a pattern suited to the style of the home. A ‘simulated’ divided lite window has one pane of glass with muntins attached to the glass with adhesive.

R Value

This refers to the insulating abilities of the window. The greater the R-value, the greater the heat resistance, in turn offering better insulating properties.

Low E Glass

Stands for low-emissivity offering energy efficiency, keeping heat out in the summer and cold out in the winter. There are many types of Low E glass so a good idea to further explore with the window company as far as climate factors, cost and overall function are concerned.

Egress

Refers to the way someone can exit a building, especially in an emergency situation. There are different building code requirements depending on where the window is situated, the size etc. Your architect will be versed in these areas.