Achieve superior thermal and sound comfort while slashing energy bills by selecting the ideal windows. Double glazing has emerged as the industry standard for its exceptional performance and efficiency. Here's what you need to know about its features and benefits.
Suitable for standard windows, French doors, or bay windows, double glazing significantly enhances thermal and acoustic insulation. As the name suggests, it features two glass panes separated by a sealed layer of argon or krypton gas.
These inert gases provide far superior thermal insulation compared to air, which conducts heat. To prevent thermal bridges and maximize insulation, a spacer—typically synthetic or aluminum—is positioned between the panes. A built-in desiccant further boosts performance by absorbing moisture, preventing condensation and maintaining clarity.
Leading manufacturers offer various double-glazing options tailored to specific needs. The standard 4/16/4 configuration features 4mm-thick panes separated by a 16mm gas-filled space. Wider gaps—such as 6mm, 12mm, or 20mm—deliver even better insulation.
Popular choices include low-emissivity (Low-E) double glazing, where the inner pane is coated with metal oxides to retain winter heat indoors and block summer solar gain. Enhanced versions incorporate argon gas, anti-reflective coatings, or even heated glass. Innovative options like switchable opacity glazing for adjustable light control or integrated Venetian blinds for sunlight management are also available.
Effective windows must combat both temperature extremes and noise pollution. Double glazing excels here too. For optimal acoustic protection, opt for thicker glass with wider spacing. The CEKAL AR rating system classifies performance from AR1 to AR6, offering sound reduction from 25 to 38 dB.
