A unplanned roof fall occurred in the #2 entry at spad #4424 approx 210' from the active face. Fall measured 28'Lx20'Wx6 1/2"" thick. Area was previously supported with 5' Torque Tension Roof bolts. area was developed on 3/1/2010. Ventilation and passage of personnal was not affected. Federal and state agencies were notified immediatly.