What is the cavity (or spacer bar) in a double or triple glazed unit?

The cavity refers to the space between the two panes of glass in a double-glazed window. This space is typically filled with air or an inert gas (like argon or krypton) to improve insulation and reduce heat transfer. Typical cavity width: 6mm to 20mm (most standard Double and Triple Glazed Units have either 20mm or 16mm) Purpose: Enhances thermal [...]

2025-06-25T15:18:57+00:00

What is the overall thickness of a double-glazed unit or triple glazed unit?

The overall thickness is the total depth of the entire unit, including: The first pane of glass The cavity The second pane of glass For example, a unit described as 4/16/4 means: 4mm glass + 16mm cavity + 4mm glass = 24mm overall thickness For example, a unit described as 4/16/4/16/4 means: 4mm glass + 16mm cavity + 4mm glass + 16mm cavity + 4mm glass = [...]

2025-06-25T15:17:55+00:00