Glass types
Monolithic glass, laminated glass, double glazing with an insulating cavity, and solar-control glass. Their values are published only with the glass manufacturer's data sheet.
Glass
Window glazing: laminated, double and solar-control glass
Glass is one part of the system, not the entire system.
What determines sound insulation
The result depends on the complete system — profile, glass, seals, hardware, dimensions, fabrication and installation — and is only quantified through testing or verifiable documentation applicable to that configuration.