English to Russian Tech/Engineering Construction / Civil Engineering

I need a Russian term for "spandrel glass".

Spandrel glass is glass which has been rendered opaque with a water based lead-free opacifier. It is typically used to conceal areas from direct viewing such as between the floors of a high-rise building in order to mask wires, piping, insulation etc.
To cover non-visible areas a so-called spandrel glass is used. Spandrel's primary function is to cover materials or construction elements from being viewed from the exterior of the building. Examples of such areas include areas between floors, hung ceiling areas, knee-wall areas below vision lights, and sometimes even columns or partitions.