Analysis of summer thermal behavior of two dwellings of heritage value rehabilitated with change of use in the department of Maipú (Mendoza, Argentina)

MONTIEL ZAMORANO, GLORIA VIRGINIA; GANEM, CAROLINA

Temuco

Conferencia; Sustainable Built: Urban planning, global problems and local policies. COP 25.; 2019

UCT - Universidad Católica de Temuco

Analysis of summer thermal behavior of two dwellings of heritage value rehabilitated with change of use in the department of Maipú (Mendoza, Argentina)Buildings rehabilitation implies a direct relationship with sustainability; since maintaining an existing building standing reduces greenhouse gas emissions associated with production of materials, transportation and new construction. In addition, this factor increases if, to build a new building, an existing one has to be demolished. However, in most of the existing buildings of heritage value, the use for which they were built has become obsolete. Then, its change of use is fundamental to extend its useful life. The aim of this work is to analyze the summer thermal performance of two houses of patrimonial character with change of use: one rehabilitated as a lodge and the other as a museum. These homes are located in Maipú, in Mendoza (Argentina); in estates of more than one hectare, without the direct influence of cast shadows. Methodology was divided into three stages. In the first stage, buildings were described in relation to their shape, size and proportions. Subsequently, materials properties were studied and thermal inertia was calculated. Third, in situ monitoring of environmental variables was carried out. Data was collected between February and December of 2016. Results indicate the two mansions remain within comfort ranges without use of auxiliary conditioning means: with temperatures between 23 and 26 °C (museum), 22 and 27 °C (lodge) and outdoors between 12 and 36 °C. It is concluded that the constructions analyzed are adapted to the climate since its interior is maintained on average 10 °C below outer temperatures. Therefore, it´s conservation and useful life extension would be a success. However, it is possible to improve its performance, by approaching minimum interior temperatures to exterior temperatures. For this, nocturnal ventilation strategy integration is essential.