| 摘要 |
There are provided photovoltaic tiles (each containing at least one photovoltaic cell) which can be readily integrated into a roof structure constructed of standard roofing materials. The photovoltaic tiles have frames which hold photovoltaic elements, the frames having end portions which are engageable with opposite end portions of similarly-shaped photovoltaic tiles and/or with end portions of standard roofing tiles, and/or which are shaped similar to shapes of end portions of standard roofing tiles. There are also provided roofing systems including standard roofing tiles and such photovoltaic tiles. There are also provided methods of constructing a roof using such a roofing system.
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