DIN 4109-1:2013-06

Requirements for the sound insulation of rooms requiring protection against noise and the permissible noise levels in rooms requiring protection against noise in residential and non-residential buildings are specified. Compliance with these requirements is necessary in order to achieve the stated noise protection goals. The requirements of E DIN 4109 1 apply to the protection against - noise emanating from other rooms (e. g. neighbouring apartments) which arises during normal use, - noise emanating from building services and from commercial and industrial businesses in the same building or in structurally connected buildings, - outdoor noise, e. g. traffic noise and noise from commercial and industrial businesses that are not structurally connected with rooms requiring noise protection. The requirements form the basis for the design of new buildings and alterations to existing ones. The standard only applies to refurbishment work if the noise protection measures are technically feasible.