Structured medium for the cultivation of greenery and a waterproofing system to facilitate the installation of said medium on buildings
US5287650A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 8, 1991 |
| Grant date | Feb 22, 1994 |
| Priority date | — |
| Expiry date | Oct 8, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B80/32
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The invention enables the rooftop cultivation of turf which can both be walked upon and which also helps prevent temperatures from rising in rooms below the roof by shielding it from the sun. The structured cultivation medium itself comprises three layers of synthetic plastic material, a top layer for turf cultivation, a middle layer to protect the roots and a bottom layer to drain water away. A root blocking waterproofing layer is laid on the surface of the roof slab to waterproof the building and to guard against the downward encroachment of roots. A net is also laid on top of the turf both to prevent it from being damaged by wind and also protect it against concentrated loads.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.