VDI 4100:2011-06 - Draft

The second draft of the Directive VDI 4100 has been technically revised by NA 001-02-03-18 AK "Überarbeitung von VDI 4100" ("Revision of VDI 4100") and has been accepted for publication as second draft by the superordinated Working Committee NA 001-02-03 AA "Schallausbreitung und Lärmminderung in Gebäuden, in Arbeitsstätten und im Freien" ("Sound propagation and noise control in buildings and workplaces, and outdoors"). The draft of Directive VDI 4100 specifies, in addition to E DIN 4109-1, characteristic values for three sound insulation classes for multiple dwellings, two-family dwellings, single family terrace houses for protection of the residents against unacceptable and disturbing noise and for agreement and guarantee of higher comfort demands from the acoustic point of view. A substantial modification with respect to version VDI 4100:2007 is that the new version refers to reverberation time related characteristics. Therewith, the step from characteristics of building element related sound insulation value to characteristics of the space related sound insulation is taken. Furthermore, A-weighted sound pressure levels of outdoor sound in rooms needing protection have been taken into consideration as an additional characteristic during evaluation. This VDI Directive is directed at designers, architects, executing companies, manufacturers of construction products, acoustic consultants, builders/owners, users, investors and operators/managers of properties, flats and flat-like rooms with the building technology systems therein, amongst others.