SN 520181:2020 is a standard published by the Swiss Society of Engineers and Architects (SIA), focusing on noise protection in building construction. It applies to various construction projects, addressing both external and internal noise sources.

Purpose and objectives

The primary purpose of SN 520181:2020 is to establish comprehensive guidelines for noise protection in buildings. This standard aims to enhance the acoustic comfort of occupants by setting specific requirements for airborne noise protection, footfall noise, and protection from technical installations. By doing so, it promotes a better living and working environment in built spaces, ultimately contributing to public health and well-being. Achieving compliance with these standards ensures that building designs consider acoustics, thereby meeting both regulatory expectations and user needs.

Scope: who must comply

SN 520181:2020 applies to a wide range of stakeholders in the construction industry, including architects, engineers, contractors, and building owners. It is particularly relevant for projects involving residential and commercial buildings where noise pollution can impact occupant comfort. Compliance is essential for any construction that aims to meet the legal requirements outlined in the Ordinanza contro l’inquinamento fonico (OIF) and the Legge sulla protezione dell’ambiente (LPAmb). Adherence to these standards is critical for ensuring that new buildings and renovations adhere to modern noise protection practices, thus fostering a healthier acoustic environment.

How SN 520181:2020 relates to other standards

SN 520181:2020 is closely related to several other standards, including:

• ISO 717-1: This standard provides methods for measuring airborne sound insulation, which is essential for understanding compliance with SIA 181:2020.
• ISO 10140-2: It outlines testing methods for airborne sound insulation in building elements, complementing the requirements set forth in SN 520181:2020.
• ISO 12354: This standard focuses on the prediction of sound insulation in buildings, which supports the implementation of noise protection measures outlined in SIA 181:2020.

Revision history and current status

SN 520181:2020 was published by the Swiss Society of Engineers and Architects in 2020. This edition reflects updates from previous versions, incorporating the latest research and best practices in noise protection. Key changes include more detailed measurement methods for noise insulation and refined compliance requirements to align with international standards, such as ISO 717-1. This ensures that the standard remains relevant and effective in promoting acoustic comfort in building construction.