Abstract: Green roof systems are provided comprising a plurality of tile sheets. Each tile sheet in turn may comprise a plurality of tiles. The tiles are connected to one another by one or more bridges. The tile sheets may be disposed above a layer of growing medium. The tiles are spaced apart from one another so as to form a channel between each tile. The channels formed between the adjacent tiles are contiguous with neighboring channels and are arranged so as to form a circuitous pathway for water runoff. The channels so formed allow plant growth between each tile. Advantages of certain embodiments include improved strength, reduced weight, reduced costs, increased life spans, reduced maintenance, easier installation, improved building energy conservation, reduced urban island heat effect, improved sound insulation, improved water retention, improved environmental aspects, improved irrigation, and reduced erosion of the growing medium.

Abstract: Green roof systems are provided comprising a plurality of tile sheets. Each tile sheet in turn may comprise a plurality of tiles. The tiles are connected to one another by one or more bridges. The tile sheets may be disposed above a layer of growing medium. The tiles are spaced apart from one another so as to form a channel between each tile. The channels formed between the adjacent tiles are contiguous with neighboring channels and are arranged so as to form a circuitous pathway for water runoff. The channels so formed allow plant growth between each tile. Advantages of certain embodiments include improved strength, reduced weight, reduced costs, increased life spans, reduced maintenance, easier installation, improved building energy conservation, reduced urban island heat effect, improved sound insulation, improved water retention, improved environmental aspects, improved irrigation, and reduced erosion of the growing medium.