公开(公告)号：US20200378109A1

公开(公告)日：2020-12-03

申请号：US16551144

申请日：2019-08-26

申请人： SOPREMA

发明人： Pierre-Etienne BINDSCHEDLER ,  Jérémie BOUCHER ,  Rémi PERRIN

IPC分类号： E04B1/62 ,  E04C2/24 ,  E04D12/00

摘要： One subject of the present invention is a roofing device (1) comprising an area support (2) made up of panels of wood particles on which a vapor barrier first layer (3), an insulating second layer (4) and a third layer (5) that is impermeable to liquid water are laid.Said device (1) is one wherein the second layer (4) is a composite layer formed by the superposition of two distinct homogeneous elementary layers (6 and 6′), namely a lower elementary layer (6) of wood fiber and an upper elementary layer (6′) made up of a material that is at least partially bio-sourced, that has hygroscopic, antifungal and thermal-insulation properties and that has a low resistance to the diffusion of water vapor.