Acoustics - Rating of sound insulation in buildings and of building elements - Part 1: Airborne sound insulation (ISO 717-1:2020)

This technical document establishes a unified methodology for evaluating the airborne sound insulation performance of buildings and their components. It defines specific parameters and calculation procedures to ensure consistent assessment across different contexts. The scope covers the determination of single-number rating quantities based on measured frequency-dependent data, providing a clear framework for compliance and design validation. By utilizing a standardized approach, it enables architects, engineers, and contractors to compare and specify acoustic properties reliably. The document outlines the necessary laboratory and in-situ measurement protocols required to generate accurate data for analysis. It addresses the transmission of sound through walls, floors, and other separating elements within built environments. The procedures described facilitate the quantification of insulation efficiency using defined weighting functions. This ensures that building elements meet specified acoustic criteria through a common language of measurement. The guidance supports regulatory requirements and quality assurance processes in construction projects. It integrates established international principles to harmonize assessment practices globally.