Dedicated Server Decay Settings

I have a Dedicated Server and I am trying to get buildings to decay if no one is using them.
It seems to me that at server reset the decay timer also resets. I have been by buildings where I know people have not been on and each time i check the timer it says (max timer). I have checked the same building for almost a week and it has not started to decay. Does anyone know what settings I need to change this or what the settings are for the decay mechanism to work properly?