Building-integrated photovoltaics (BIPV) are photovoltaic materials that are used to replace conventional building materials in parts of the building envelope such as the roof, skylights, or facades. They are increasingly being incorporated into the construction of new buildings as a principal or ancillary source of electrical power, although existing buildings may be retrofitted with BIPV modules as well.

In photovoltaic applications (also in BIPV systems) low iron tempered glass is usually used. Glazing can be made as simple glass/glass laminate or as complex isolation glass/glass laminate. Special laminates with coloured back sides have also been produced. Due to safety requirements for lamination usually PVB foil instead of EVA foil is used -> especially for laminates used in transparent roofs. PVB have been used for decades in automotive industry – laminated safety windscreen glass. Laminate can consist of monocrytalline cells, thin film cells or from transparent cells.

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