Quote (plzleaveduck @ 15 Jul 2015 22:54)
Noone can tell you when to build certain buildings because it depends on what you scout, what you don't scout, and other factors.
vs protoss take a 3:54 third, and 6:15 against terran in standard games.
Against terran if they keep the reactor on their barracks after it finishes it means it will be a 8 marine drop with hellbats and you want an early baneling nest or you just lose.
Roach warrens are generally pretty useless as they are bad units but may be needed to hold 7gate builds off 1 gas and certain 2factory hellion builds.
I'm not sure what game are you playing, but not heart of the swarm thats for sure. Let me recap HotS TvZ (2013-2015) for you
