INFLUÊNCIA DO ISOLAMENTO TÉRMICO DE COBERTURAS FRENTE AOS IMPACTOS DAS MUDANÇAS CLIMÁTICAS

Abstract

The objective of this work is to analyze comparatively the effects of global warming on the energy consumption of a social housing located in the city of Cuiabá-MT. For this, it was considered its standard roof construction (ceramic tile and PVC lining), and the lining was replaced by three types, two of mixed slabs (concrete trusses filled with polystyrene boards, EPS) - with and without glass wool overlapped, and one with plaster lining. It was considered a Base Scenario and projections for 2020, 2050 and 2080. The results showed that the typologies without slab, in the Base Scenario, presented annual energy consumption of 3,781kWh and increased, in the 2080 scenario, by 60%, to 9,657kWh. Adopting the slab lining, the energy consumption suffered an incipient reduction: 3,741kWh in the Base Scenario and 9,637kWh in the scenario of 2080. Among the types of slab lining with and without thermal insulation, the reduction was only 1.08%, 0.56%, 0.37% and 0.20%, in the Base Scenario, 2020, 2050 and 2080, respectively, not being sufficient to improve energy consumption. Thus, buildings are already influenced by the high temperatures of the region in the present day, presenting low thermal quality in their interior and that, incorporating the effects of global warming, the habitability conditions are even more compromised. Therefore, it is indicated that mitigation measures are implemented today in the buildings, with a view to the resilience of the housings.