Sound Insulation


Sound insulation is measured in decibels (db). When a window has a sound insulation of 30 db and the outside sound intensity is 65 db, then this means that the inside sound intensity will be 35 db.

Location Noise Recommended inside
Sound Intensity
Ordinary Street 66db 35db
Busy Street 70db 35db
Motorway 75db 40db

Engels windows enjoy excellent sound insulation and can be equipped with insulating glass up to 45 db. For additional sound insulation, up to 55 db (airports), please contact us.