Different Techniques of Rooftile BIPV System Implementation: Materials and Constructions

Abstract

Roof integrated systems which are integrating photovoltaic (PV) modules into rooftiles now become a trend of building integrated photovoltaic (BIPV) technology. BIPV refers to PV that are integrated into the building envelope (such as facade or roof) to generate clean and environmental-friendly electricity from the sun radiation. The architectural integration of PV collector modules in new construction makes possible to create glazed surfaces which, besides being an aesthetical and functional innovation, generate electricity, that is allowing the realization of solar control and electric range with consequent energy savings. However, up until now, there have been limited studies that analyzed BIPV from the materials and constructions point of views. This paper aims to expose rooftop BIPV materials that further might be used to replace conventional rooftiles such as terracotta or slate, concrete, plastic, and clay tiles. The flat rooftiles of monocrystalline- and polycrystalline-based BIPV cells are being considered in this paper. Their benefits and drawbacks are also put into account. The parameters that were compared are materials, physical constructions, installations and performances at all weather conditions. All the comparisons of those rooftiles that have been made turned out to meet the modern households' aesthetical, energy and costs saving.