L Conductive tile and Static-Dissipative tile should be installed on sub floors that are levered smooth and free of cracks. Residual humidity should be under 2.5% tested with the CM Dumb test. Tiles adhesive and installation site should reach a temperature of at least 18 C at 24 hour before installation and paste the tiles with qualified conductive glue below 10”5 Ohm for further details on installation method.