Definition

Noun: - A type of window construction consisting of two parallel panes (panels) of glass separated by a sealed space, designed to improve thermal insulation and reduce noise transmission.

Usage

• Primary Use: Refers to the window unit itself or the installation technique.
  • The new house features double glazing throughout to improve energy efficiency.
  • We are considering installing double glazing to reduce the street noise.

Advanced Usage

• Technical Context: The sealed space between the panes is often filled with air or an inert gas (like argon) to enhance insulation properties.
  • The double glazing in this model uses argon gas for superior performance.

Variants and Related Words

• Double-glazed (adjective): Describes a window constructed with double glazing.
  • All rooms have double-glazed windows.
• Triple glazing (noun): A similar construction using three panes of glass for even higher performance.

Synonyms

• Insulated glazing unit (IGU)
• Thermal window
• Sealed unit

Related Phrases

• Secondary glazing: An additional, separate pane of glass added to an existing window, distinct from integrated double glazing.
  • As we couldn't replace the original windows, we opted for secondary glazing.

Noun

1. a window with two panes of glass and a space between them; reduces heat and noise transmission through the window