Proposta de retrofit para melhoria do desempenho térmico das fachadas da edificação vertical do Hospital Universitário Professor Alberto Antunes (HUPAA) - UFAL

Abstract

The present work seeks to highlight the importance of studying the facades of a multi-floor building, in terms of exposure to solar radiation. The unit of analysis is the University Hospital Professor Alberto Antunes - UFAL, located at Av. Lourival Melo Mota, S/N - Tabuleiro do Martins, the construction project of the HUPAA arose from the need to implement the field of practice for teaching and research in the medical area of the locality, thus the creation of the teaching hospital, the HUPAA was born is recognized as a reference institution in the state of Alagoas, providing assistance 100% SUS. Its facades are characterized by vertical louvres, of the type of airplane wing, present in almost all the extension seen from the main avenue (AL 104). The building can be considered as a nodal point for the city of Maceió, especially for the water tank present in the parking lot, which can be seen from long distances. The proposal is centered on a retrofit to improve the thermal performance of its facades. Through visits to the site and elaboration of solar charts, information was obtained about the efficiency of solar protection devices (brises), sealing and coatings that make up the current facades of the HUPAA vertical building. After analyzing the insolation and thermophysical properties of the sealing components, retrofit strategies were defined to reduce, by up to 75%, the thermal gains of the facades, through the replacement of coatings, sun protection devices and the replacement of a part of the translucent surfaces - window panes on the façade - by surfaces with lower solar factor.