Why sound insulation

According to the building regulations of the federal states, adequate sound insulation must be provided 'when constructing or modifying building structures'.

Measurement of the sound insulation of an access panel

•  Access panels are a component whose performance (component characteristic value) must be measured. That means: testing in the laboratory/on site.
• The sound insulation of a building component (airborne sound insulation value = component parameter) is given in and is used R_w for the subsequent overall calculation of the building proper

DIN EN ISO 10140

The new DIN EN ISO 10140 standard 'Laboratory measurement of sound insulation of building elements' has been published in 5 parts.

• Part 1: 'Rules of application for specific products'
• Part 2: 'Measurement of airborne sound insulation'
• Part 3: 'Measurement of impact sound insulation'
• Part 4: 'Measurement procedures and requirements'
• Part 5: 'Requirements for test facilities and equipment’

Sound insulation dimensions of doors
The sound insulation dimensions of doors usually refer to the laboratory or test facility value R_w,P.

When installed, the values are approx. 5 dB lower due to sound bypasses and installation tolerances. Therefore, the weighted sound reduction index Rw,P (measurement in the test room) must be at least 5 dB higher for doors than the R value required for the respective application.

R_w,R = R_w,P – 5 dB for doors

Doors are divided into different sound insulation classes. The requirements or recommendations for certain types of use are derived from DIN 4109 or VDI 4100.