ANALYSIS OF GREEN ROOF PROPOSAL IN A SINGLE-FAMILY RESIDENCE TO IMPROVE THERMAL COMFORT AND REDUCE RAINFALL RUNOFF IN PERI MIRIM-MA

Abstract

Over the years society has grown and built its homes in spaces that were previously occupied by fauna and flora. Most of the urban centers are surrounded by roofs covered with ceramic tiles, which is an old construction method and that brings some problems, such as the increase in temperature and contributes to floods caused by the impermeable surface, generating a high flow of rainwater. With this, the alternative of the green roof appears, a constructive method that aims to alleviate the existing problems in the ceramic roof. This research aims to analyze the performance of the green roof compared to the conventional ceramic roof in improving thermal conditions and reducing rainfall runoff in a single-family residence in the municipality of Peri Mirim-MA. For this, the verification of the thermal conditions was done through the Energyplus program to determine the thermal conductance and inertia of the green roof and the conventional roof, associating it with the study site. Then, it was verified how much each one can retain rainwater, for this, a flow calculation was performed for each type of roof analyzed, taking into account the Runoff coefficient that considers the permeability of the surfaces. At the end of the research, the objectives were achieved, the green roof was able to reduce the flow of rainwater by more than 70% and there was a 7ºC reduction in the maximum temperature peak, however, the green roof was not able to stay within the normative temperature standard ideal for indoor environments.