Influence of the ceiling on the thermal comfort in social housing

Abstract

The objective of this paper is to present an analysis and discussion about the influence of the use of ceiling in covered with ceramic tiles and without ventilated attic for social housing. Although Brazilian standards recommend the use of roof ventilation for buildings in the bioclimatic zone 8, the technical quality regulation allows the use of ceramic tiles without this strategy, which can compromise the performance of the building in its use and occupation. For this evaluation, three materials were considered in the composition of the ceiling (gypsum, pine and PVC) and height of the right foot varying between 2.35m and 2.70m in a standard building for five Alagoans cities, all belonging to the bioclimatic zone 8. Computer simulations were performed with the aid of the EnergyPlus® software in its version 9.3 in a reference year. The results were presented considering as base the discomfort obtained from the climatic data for each city with obtaining the percentage of discomfort in each one of them. It was observed that the building behavior in these cities occurs differently and even though they are located in the same bioclimatic zone, this strategy may not be a good design solution, because although it is within the accepted parameters for this location, it does not promote thermal comfort desirable, reinforcing the need to insert the computer simulation process in the initial phases of the project to choose the construction system that best suits the realities of each city where the standard project will be built.