double-glazed

US /ˌdʌb.əlˈɡleɪzd/
UK /ˌdʌb.əlˈɡleɪzd/
"double-glazed" picture
1.

doppelt verglast

having two layers of glass with a space between them, typically to reduce heat loss and deaden sound

:
The new windows are double-glazed, which helps keep the house warm in winter.
Die neuen Fenster sind doppelt verglast, was hilft, das Haus im Winter warm zu halten.
We need to replace our old, single-glazed windows with double-glazed ones for better insulation.
Wir müssen unsere alten, einfach verglasten Fenster durch doppelt verglaste ersetzen, um eine bessere Isolierung zu erzielen.