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Solar Panel installation vs. Solar Shingles. The major difference between solar roof shingles and solar panels is in the installation process. Installers usually need to bolt solar panels onto the roof, which requires drilling through the roof and can violate its warranty.
Thin-film cells are overlaid with a layer of semiconductor material which is only a few microns thick. This makes thin-film cells flexible and adaptable to a variety of shapes. Thus, thin-film solar roof tiles can look and function much like any roof shingle, with the added benefit of solar power generation.