The element (10) has a pane (12) e.g. plane float glass pane, with an edge that is fixed in a frame construction. An auxiliary pane (14) is formed as a molded plastic article, and supporting elements are formed integral with the auxiliary pane in a direction of the pane. A support grid (28) is formed at a pre-defined maximum distance between the supporting elements. A hollow space (34) is evacuated and the support grid stably supports the auxiliary pane and the pane against collapsing with each other due to outer atmospheric pressure. An independent claim is also included for a method for manufacturing a multi-layer heat insulating pane element.
