Análise do atendimento aos requisitos da norma de desempenho NBR 15575 em projeto hidrossanitário de uma edificação residencial unifamiliar

Abstract

The NBR 15575 standard, known as the Performance Standard for Residential Buildings, plays an essential role in civil engineering design by establishing minimum performance requirements to ensure the quality, safety, durability, and comfort of buildings throughout their service life. In the context of plumbing design, this standard addresses aspects such as safety in the use and operation, watertightness, durability, and maintainability, aiming to guarantee that hydraulic systems do not compromise user comfort, while also preventing leaks, ensuring component longevity, and allowing future maintenance without damaging the structure. To comply with these regulatory requirements, it is necessary to follow technical standards for plumbing installations, such as NBR 5626, which refers to cold and hot water systems, and NBR 8160, related to sanitary sewage systems. Thus, NBR 15575 serves as an integrative guideline, directing plumbing design to meet technical specifications, user expectations, and legal demands. The objective of this study was to analyze the plumbing project of a single-family residence, verifying its compliance with NBR 15575 and proposing adjustments for any nonconforming items. The methodology consisted of evaluating the project based on Parts 1, 3, 5, and 6 of the standard, using comparative tables adapted from the methodological proposal by Gealh (2018). The results showed that the project presented several nonconformities, mainly due to the absence of a descriptive report, hydraulic calculations, and technical detailing. These findings highlight the importance of systematically applying NBR 15575 to ensure greater quality, safety, and durability in residential buildings.