This article presents a selection method of existing innovations in patents that propose improvements in Temporary Edge Protection Systems (TEPS). The method was divided into three stages. In stage 1, records were collected related to TEPS from the patent filing databases of the Instituto Nacional da Propriedade Industrial (National Institute of Industrial Property, Brazil), the United States Patent and Trademark Office and the European Patent Office. In stage 2, patents were selected based on the TEPS evaluation protocol created by Peñaloza, Formoso and Saurin (2017), which examines safety, efficiency and flexibility criteria. In stage 3, four patents were selected among the 20 patents found related to guard rails and three related to protection nets. Based on the results, one invention stands out that uses hollow posts in protection barriers, which allows for modular movement with safety and flexibility. The framework proposed in this research is a useful resource for disseminating techniques included in TEPS patent databases.

A norma de desempenho NBR 15575 apresenta à construção civil conceitos de desempenho, durabilidade e vida útil, os quais dependem de procedimentos de manutenção preventiva ao longo do tempo visando atingir o desempenho projetado. Desse modo, a pesquisa tem por objetivo propor um novo modelo de manutenção preventiva com foco nas periodicidades e comparar com o Guia nacional para elaboração do manual de uso, operação e manutenção das edificações proposto pela CBIC. O método consistiu em entrevistas com engenheiros, arquitetos e construtores, buscando o período ideal para a realização da manutenção corretiva de cada sistema presente em uma edificação. Por meio desses resultados foi elaborada uma tabela relacionando os períodos de manutenção obtidos com a pesquisa e os estabelecidos no manual base, assim nomeado o manual da CBIC no decorrer do trabalho. Como resultado principal foram identificadas no manual proposto pela CBIC a necessidade de 1618 manutenções preventivas no período de três anos, enquanto o manual sugerido propõe 641 manutenções no mesmo período. Desse modo, a discussão se concentra em definir um manual de manutenções com periodicidades consideradas adequados e viáveis ao usuário da edificação, suficientes para o alcance da vida útil estimada para a edificação.

The purpose of this article is to analyze the jurisprudence related to the performance standard to expose the current understanding of the Brazilian judiciary regarding compliance with the standard NBR 15575 in the maintenance, warranty, and useful life. The research method consisted of the collection of jurisprudence in the Jusbrasil website that covered the courts of the second and third instance civil courts of all Brazilian states between 2013 and 2018 through the keywords "nbr 15575", "nbr 15.575" and " performance standard." Among the 19 analyzed processes, the requirements of design life and water tightness to external moisture sources were the most frequent. Also, there was a trend of decisions favorable to the authors of disputes, represented by construction and real estate clients. Technical aspects of three processes are also discussed because of the peculiarity of the decision. The contribution of the research is based on the observation of court issues, supported by NBR 15575 to present the primary deficiencies of the projects, providing measures to combat them and reduce possible legal proceedings.