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Ambiente Construído

versão impressa ISSN 1415-8876versão On-line ISSN 1678-8621

Resumo

CASTRO, Guilherme Nóbrega de; LEDER, Solange Maria; SILVA, Luiz Bueno da  e  SOUZA, Erivaldo Lopes de. Daylight conduction components in apartment buildings: analyses of a building code. Ambient. constr. [online]. 2015, vol.15, n.2, pp.25-44. ISSN 1415-8876.  http://dx.doi.org/10.1590/s1678-86212015000200012.

Aside from the emotional and health benefits, daylight has been shown to have a significant impact on energy efficiency. The saving potential due to daylighting, however, depends on the daylight availability inside the building. In this work the daylighting performance of rooms in a residential building was analyzed. The daylight system consisted of daylight conduction components associated with pass-through components, designed considering the minimum standards set out by the building code of the city of João Pessoa. The Daysim software was adopted to simulate the daylight, 480 simulations were analyzed, including five different rooms (living room; bedroom; maid’s room; kitchen and bathroom), three variables of pass-through components (opaque and transparent sill; protruding and enclosed balcony; and balcony’s depth), and three variables associated with the surroundings (maximum plot ratio allowed; two stories height; and four facade orientations). Daylight Autonomy (DA) and Useful Daylight Illuminance (UDI) are the performance indicators used to predict the rooms’ performance. We concluded that the minimum standards for conduction and pass-through components set out by the building code can not contribute to the efficient use of daylight (approximately 40% of the simulated models had insufficient daylight), especially when a high window is connected to a pass-through component.

Palavras-chave : Daylighting; Computer simulation; Light conduction componentes; Building code.

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