Designed specifically for colder climates, the Northern Tri-Pane Collection of thermal-performance windows by Jeld-Wen feature two 1.2-centimetre argon-filled air pockets between three panes that add an extra layer of insulation and reduce radiant heat condensation.

The interior panes also buffer exterior noise transfer and increase internal sound absorption for a quieter environment. A range of operating styles and frame finishes are available.