0575940-A1 is referenced by 2 patents and cites 3 patents.

The invention relates to turfing for flat roofs, having a root-protection web (2) which is laid at the building site, a draining layer (3), a water-permeable separating layer (5) and a planting layer (6). For the purpose of simplified production and for an increase of the water-storage capacity of said turfing, the invention provides that the draining layer comprises prefabricated slabs (3) consisting of both a foam composite with a relative density of from 80 to 120 kg/m, said draining layer being covered by a nonwoven (5), suitable for sheeting, as separating layer.

Title
Turfing flat roofs.
Application Number
EP19930109885 19930621
Publication Number
0575940 (A1)
Application Date
June 21, 1993
Publication Date
December 29, 1993
Inventor
Nordgerling Rolf
DE
Mueller Alfred
DE
Assignee
Metzeler Schaum
DE
IPC
E04D 11/00
E04D 11/00
E04D 11/00
View Original Source Download PDF