Name: Ariane Louzada Sasso Ferrão
Type: MSc dissertation
Publication date: 29/09/2022
Advisor:

Namesort descending Role
Edna Aparecida Nico Rodrigues Advisor *

Examining board:

Namesort descending Role
Cristina Engel de Alvarez Internal Examiner *
Edna Aparecida Nico Rodrigues Advisor *
Roberta Vieira Gonçalves de Souza External Examiner *

Summary: The research analyzed different roof system in relation to thermal performance in the current climate
condition, and two different roof system in the future climate condition of high emission of
greenhouse gases, in a hot and humid region, under stress caused by the absence of ventilation;
considering in the analyzes the use of Terraço Capixaba (TC) as a passive strategy to improve the
thermal performance during the useful life (VU) of Brazilian buildings. Through the computational
simulation methodology of NBR 15575/2021, was possible to perceive the terraço capixaba as an
efficient and resilient system for the climate of the study, up to half a VU of buildings exposed to the
conditions of the study, considering the continuity of the climate change process, and, in addition, the
methodological process developed during the research allowed identifying the difficulty for buildings
to reach intermediate and superior levels in regions with unfavorable ventilation conditions. The
investigative methodology was developed in five stages: Stage 1: which dealt with the justification for
choosing and characterizing the study area; stage 2: observation survey; step 3: modeling; step 4:
thermal evaluation; step 5: thermal evaluation in future scenarios. The results pointed to the ability of
roofing systems of the terraço capixaba contributes to the improvement of the thermal performance of
buildings, in the climate conditions of the sample cutout, until the proximity of the 2050’s with the
continuity of the climate change process, and the tendency to become unable to continue contributing
later. Secondarily, the analyzes indicated weaknesses in the criterion for defining operating
temperature ranges (FT) of the NBR 15575/2021 methodology, based exclusively on the dry bulb
temperature (TBS) of climate files, without considering other climate variables. In addition, was
observed that the way used to define the FT, which are defined considering parameters of adaptive
comfort, can mask the performance results, giving to a worse performance level to a reference-modelreal-model relationship a higher performance level, and to a better model-reference-model-real
relationship, less high performance, and with greater difficulty in climbing levels above the minimum,
which occurs exclusively due to the FT used in the analysis, and the dependence on wind conditions
capable of dissipating heat in the built environment, which tends to obsolescence in several regions of
the country with the continuity of the climate change process.

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