The effect of the use of radiant barriers in building roofs on summer comfort conditions - A case study

• Tipo: Artigo em Revista Científica Internacional
• Data: 2018-10-01

Autores

Helena Corvacho (Autor) FEUP; Miguel Ferreira (Autor) Outra

Revista

Título: Energy and Buildings

Vol. 176

Páginas: 163-178

ISSN: 0378-7788

Editora: Elsevier

Indexação

ISI Web of Knowledge - 0 Citações

Scopus - 2 Citações

ScienceDirect (Elsevier)

Outras Informações

ID Authenticus: P-00P-E1D

DOI: 10.1016/j.enbuild.2018.06.048

Abstract (EN): A brief analysis on radiant barriers applied in building roofs, included in a wider study, is presented. A case study which involves experimental measurements carried out in a single-family house, located in a mild climate, specifically in the North of Portugal, where radiant barriers were applied and monitored is described. A computer program (CAPSOL) was also used to carry out a sensitivity analysis and to verify if the results pointed to conclusions similar to those of the experimental measurements. In the experimental part of this work, which took place in the summer periods of two consecutive years, two different roofs were monitored in the same house. Values of temperature, relative humidity, solar irradiance, heat fluxes among other parameters were measured. This article presents some of the collected data. In the numerical simulation, the comparison between the situation of the inclusion of a radiant barrier underneath the roof tiles and over the attic floor slab is presented and compared with another situation without this barrier. In general, it was concluded from this brief analysis that the application of a radiant barrier in the roof of a building proves to be advantageous, especially in what regards the attenuation of the maximum temperatures reached at the roof attic, thus mitigating the risk of overheating.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 16