| 摘要 |
The covering of winter gardens and greenhouses by flat glass or plastic panels is not resistant to footfall impact, is very expensive and, if it is to be insulated against the cold, is particularly cost-intensive. For this purpose, it necessitates a costly substructure. The novel roofing tile is, in contrast, to be resistant to footfall impact, heat-insulating and inexpensive. Said roofing tile, having the same shape and size as conventional roofing tiles, is, in the same way as beverage bottles, blown on automated hollow-glass apparatuses. Shape and material guarantee resistance to footfall impact, the cavity has a heat-insulating effect and production is inexpensive. Condensation water is channelled away through wick tubes (2) in the sealing composition between the tiles, and, if these are frozen up, it is channelled further downwards through ducts (1). The bearing means (3) maintain the distance from the lath arrangement. The condensation water cannot overflow to the lath arrangement. Every tiled roof can be re-covered, without changing the roof structure and the lath arrangement, by means of said hollow-glass tile to form a winter garden. New construction of winter gardens and greenhouses is simpler and less expensive. <IMAGE>
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