A roof fall occurred on the Productivity #1 track between 11 and 12 x-cut. The fall was approx. 23' in length, 18' in width and 8 to 9' in height. Area was bolted using 8' point anchor resin assisted bolts and 12' CC cable bolts. Area also utilized wire mesh and bacon straps. Cause of this fall was deterioration on roof due to weathering.