TruGround® is a conductive primer which enables electronic leak detection (ELD) of conventional roofing assemblies including black EPDM. TruGround®creates the required conductive substrate directly below the membrane.
There is a lot of confusion and myths regarding testing conventional roof assemblies using Electronic Leak Detection. Here is a TECHNICAL NOTE to help clear up the confusion.
Other conductive mediums such as the Vector Mapping Grid (VMG), is often placed incorrectly below the coverboard or insulation.