Banca de DEFESA: MAIANA BORBA VILARIM

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : MAIANA BORBA VILARIM
DATE: 29/08/2022
TIME: 08:00
LOCAL: Pos Graduação Engenharia Civil
TITLE:

Low Cost Green Roof Performance

KEY WORDS:

Green roof; Thermal performance; Ecological roof; PET bottles

PAGES: 149
BIG AREA: Engenharias
AREA: Engenharia Civil
SUMMARY:

In general, urbanization results in several problems for the urban environment and, mainly, for the environment, such as floods and urban heat islands. The search for development based on sustainable technologies, which can make the advancement of society less aggressive and harmful to the environment, is increasing. Green technologies can be used to mitigate the environmental impacts caused by urbanization, and among such technologies are ecological roofs. In this context, green roofs are inserted, which are able to contribute to thermal comfort and to reduce the volume of surface runoff. However, there are few green roofs, and this may be associated with the lack of knowledge of the technique by the population, or even the cost of implementation, limiting its use to families with better financial conditions. Therefore, this research analyzes the thermal performance of a low-cost green roof, built with PET bottles, in the city of Recife, Pernambuco. Three different roofs (a conventional slab roof and two green roofs) were investigated, aiming to compare the thermal behavior below them. On the green roofs investigated, one of them was implanted in a conventional way and the other with PET bottles as a support structure. The Aranto vegetation (Kalanchoe laetivirens) was chosen for its great resistance to water scarcity and insolation, for its easy propagation and acquisition, and for its low value. With the use of thermometers and thermohygrometers, temperatures were monitored from March to May 2021. The temperatures below the low-cost green roof showed intermediate values in relation to the other roofs, however, more similar to the values observed by the conventional green roof. The maximum temperatures in the conventional green roof were up to 2.7 °C and 3.4 °C less than the external maximums and those obtained with the conventional roof, respectively. In the case of the low-cost green roof, these values were up to 2.3 °C and 1.6 °C lower than the external maximums and the conventional roof, respectively. Due to its characteristics and thermal benefits, the PET vegetated roof indicated to be a good sustainable and accessible technology.

BANKING MEMBERS:
Presidente - 2726911 - ANDERSON LUIZ RIBEIRO DE PAIVA
Externo à Instituição - DIEGO CEZAR DOS SANTOS ARAÚJO
Interna - 2193972 - LEIDJANE MARIA MACIEL DE OLIVEIRA