Windows and doors: Acoustic performance

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Categories: Performance : Windows & Doors

The performance characteristics listed below are relevant to products covered by EN 14351-1 Windows and doors - Product standard, performance characteristics - Part 1: Windows and external pedestrian doorsets without resistance to fire and/or smoke leakage characteristics

This requirement applies to:

WindowsYes when required
DoorsYes when required
Roof windowsYes

Doorsets and openable windows with fire resisting and/or smoke control characteristics are covered by EN 14600

Pedestrian doorsets, industrial, commercial, garage doors and windows are covered by prEN 16034


EN 140-3Acoustics – Measurement of sound insulation in buildings and of building elements – Part 3: Laboratory measurements of airborne sound insulation of building elements
EN 717-1Acoustics – Rating of sound insulation in buildings and of building elements – Part 1: Airborne sound insulation


Method of test or assessment

Direct airborne sound insulation is measured by mounting the test sample in an opening between two rooms and measuring the sound insulation at different frequencies.

Annex B of EN 14351 gives a method for evaluating the acoustic performance for windows containing a single IGU based on tabulated values.


There is no classification for direct airborne sound insulation. Where required the value should be declared in units of dB.

CE Marking

UK Regulations do not cover noise from outside the building and therefore the direct airborne sound insulation is not required for compliance. The allowable use of No Performance Determined (npd) is as follows:

Locationnpd allowed
England and WalesYes
Northern IrelandYes