Single-glazed or double-glazed windows? Here's how to decide without over-spending.
Double glazing means two panes of glass with a sealed gap between them. The trapped gap slows heat and sound transfer far better than a single pane can.
Single glazing is one pane of glass. It's simpler and cheaper, and on a sheltered, quiet opening it's often perfectly adequate.
We won't tell you to double-glaze the whole house. Double glazing earns its place on sun-hammered and road-facing openings; on a shaded, quiet rear window single glazing does the job. Spend it where it works.
Double-glazed on sun-facing and road-facing openings where heat and noise are real problems; single-glazed where the opening is sheltered and quiet.
On the openings that need them, clearly. On sheltered ones the difference is small — which is why we spec per opening.
Mixing them — double where it works, single where it doesn't need to be.
Related guides covering this topic from other angles — different products, applications, or contexts.
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