Avaliação do desempenho acústico de paredes de geminação de habitações dos programas casa Fácil Paraná e Casa Verde e Amarela

Abstract

The population growth in urban areas has resulted in a significant increase in noise pollution, directly affecting public health. In this context, optimizing acoustic performance in civil constructions becomes essential to ensure healthy and comfortable environments. This study aims to analyze and evaluate the acoustic behavior in the double party wall of a housing complex from the 'Casa Verde e Amarela' Program. The measurements were conducted using engineering methods according to ABNT NBR 15575-4:2021, following the standard procedures of ABNT NBR ISO 16283-1:2018 to characterize sound pressure level, background noise and reverberation time, the latter using interrupted noise and integrated impulse response methods. After this determination, the acoustic insulation was classified according to ABNT NBR ISO 717-1:2021. The acoustic performance in the double party wall was then classified as minimum, as the obtained values for both the adaptation spectrum C and the uncertainty with a 95% confidence level fall within the range of 40 dB to 44 dB. Therefore, aiming to provide a practical and applicable solution in different scenarios, this approach meets the minimum requirements demanded by the ABNT NBR 15575-4:2021 standard, becoming a viable and accessible option for people with various income levels.