Patent ID: 9440411
Filing Date: 2016-09-13
CPC Classification: A01G,B32B,Y02B,Y02P,Y10T

Claim Text:
1. A living roof or wall system mat assembly, said assembly consisting of: a) a soil-free, light weight modular dimensional mat unit of thin, flexible mineral wool having a density of from about 3 Kg/c.f. to about 5 Kg/c.f., a thickness in the range of from about 0.9 cm to about 2 cm, and a top and a bottom surface, said mat being water permeable but not hydrophilic and not serving as a growth medium; b) a living layer of bryophytes, lichen, and vascular epiphytes (BLAVEs) forming a complex ecosystem supported on and growing on said top surface of said modular dimensional mineral wool mat unit without being continuously watered; c) a base layer of porous, non-hygroscopic, non-biodegradable, non-woven thermoplastic fabric having a top surface and a bottom surface, and a thickness in a range of from 2-4 mm, said base layer is disposed with its top surface in contact with said bottom surface of said modular dimensional mineral wool mat unit; d) ultraviolet-stabilized plastic netting having a mesh size in a range of from about 1-10 cm disposed over said modular dimensional mineral wool mat unit having said BLAVEs layer supported on the surface thereof, said netting is secured to said base layer and said BLAVEs layer is retained by said netting; and e) thereby forming a unitary mat assembly that is light weight, easy to store, ship and handle and as mounted on roofs or walls forms a living roof or wall surface of a structure exposed to an outdoor environment, which unitary mat assembly does not require irrigation or drainage systems, the mineral wool mat providing an insulating and fire resistant layer for said structure.