masterThesis
Desempenho térmico de coberturas: Um estudo comparativo entre as telhas de material reciclado, de fibra e betume, fibrocimento e cerâmica
Fecha
2011-11-01Registro en:
JARDIM, Patricia Rafaella Salgado Abreu. Desempenho térmico de coberturas: Um estudo comparativo entre as telhas de material reciclado, de fibra e betume, fibrocimento e cerâmica. 2011. 125 f. Dissertação (Mestrado em Conforto no Ambiente Construído; Forma Urbana e Habitação) - Universidade Federal do Rio Grande do Norte, Natal, 2011.
Autor
Jardim, Patricia Rafaella Salgado Abreu
Resumen
This study aims to compare the thermal performance of tiles made from recycled material
(waste packaging cardboard with aluminized film) with the tiles of fiber and bitumen, fiber
cement and red ceramic with the aim of verifying the suitability of tile to be used in hot and
humid climate of low latitude. The samples were selected according to the availability from
Natal - RN market, as they are sold to the consumers. The methodology was based on studies
that used experimental apparatus composed of thermal chambers heated by banks of
incandescent bulbs, to analyze the thermal performance of materials. The tiles in the study
were submitted to analysis of thermal performance, thermophysical properties and
absorptance, using chambers of thermal performance, measuring the thermophysical
properties and portable spectrometer, respectively. Comparative analysis of thermal
performance between two samples of the recycled material with dimple sizes and different
amounts of aluminum were made, in order to verify, if these characteristics had some
interference on the thermal performance of them; the results showed no significant
performance differences between the samples. The data obtained in chambers of thermal
performance and confirmed by statistical analysis, showed, that the tile of recycled material
have similar thermal performance to the tile of fiber cement. In addition to these tests was
carried out the automatic monitoring of a building covered with tiles of recycled material, to
verify its thermal performance in a real situation. The results showed that recycled shingles
must be used with technical criteria similar to those used for fiber cement tiles, with regard to
the heat gain into the building. Within these criteria should be taken into account local
characteristics, especially in regions with hot and humid climate, and its use must be
associated, according to the literature, to elements of thermal insulation and use of passive
techniques such as vented attics, ceilings and right foot higher