Although one is familiar with plastics from a wide range of everyday objects, and although there are many examples of their successful use in building, they still do not enjoy full acceptance as constructional materials, even though the technical and qualitative deficiencies once associated with them have long been overcome. Since the 1980s, in fact, transparent and diaphanous plastic semi-finished sheet products have been effectively used for the skins of many distinguished buildings, allowing light to enter by day and to radiate out at night.
