| 摘要 |
<p>The covering, intended to cover with green an inclined roof, comprises an imputrescible support, to be laid on the roof without shearing efforts. This support is provided on its upper face with shoulders (12, 14, 16) for holding a vegetable layer(s) and a shear derivation means (10) connecting, in order to resist traction and shearing, the shoulders to the ridge and/or to the roof drain. Preferably, the shoulders form a very porous tridimensional structure, receiving the layer(s) comprised of inter woven irregularly artificial filaments. These filaments are fixed to a shear-resistant filtering mat, optionally capable of storing humidity, acting as a shearing derivation means (10). A very porous lower draining (18, 22, 24), may be made as the upper tridimensional structure and fixed to the lower face of the mat. This covering may be laid on a roof by unrolling it from a roller.</p> |
