公开(公告)号：DE3423766A1

公开(公告)日：1985-01-03

申请号：DE3423766

申请日：1984-06-28

Applicant: BASF AG

Inventor： CAPELLER LUDWIG DR ,  GOERLACH REINHOLD ,  SCHOLZ DANKMAR

IPC: B32B27/14 ,  E04D3/35 ,  E04D13/16 ,  E04B1/78

Abstract: Prefabricated composite elements for thermal insulation of flat roofs comprising a foam layer of a predominantly closed-celled foam plastic and, bonded thereto, a cover layer of a granular inorganic aggregate and an organic binder. The composite element is characterised by its high water vapour permeability, expressed by a water vapour diffusion equivalent air layer thickness according to DIN 52615 of less than 1.0 m.