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Author(s):	Kornadt, Oliver; Vogel, Albert
Title:	The new German soundproofing standard: Comparison between DIN 4109:1989 and E DIN 4109:2013 / Die neue Schallschutznorm: Vergleich DIN 4109:1989 und E DIN 4109:2013
Abstract:	In 2013, a new draft of a complete standard for DIN 4109 “Soundproofing in buildings” was issued in 4 parts - “Requirements”, “Method of calculation”, “Parts catalogue” and “Testing acoustics in buildings”. It includes several increases in the requirements for protection against airborne noise and impact sound by comparison to DIN 4109:1989. The increases are based on the grades from monitored buildings of standard construction periodically noted in recent years. Significant changes are also included in Part 2 “Input data for verifying the requirements by calculation”. A detailed computation of all transmission paths is carried out here, taking into account the special vibration reducing indices. For a brick wall, the specific indices for the weighted sound reduction index R’w,R are shown that arise for various formations of the joints. When compared with the calculated values according to DIN 4109:1989 there are differences of up to 10 dB.
Source:	Mauerwerk 19 (2015), No. 2
Page/s:	110-118
Language of Publication:	German

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