Composite elements for thermal insulation of flat roofs

摘要

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.