Roof fall occurred in the #9 cross-cut of E-Mains between #4 and #5 entries. Fall was 55 ft long, 16 ft wide and between 12 and 15 ft in height. No injuries or equipment damage. Fall did not affect intake iar courses or any escapeways. Additional roof support was installed at both ends of fall area to protect surrounding area. Notifications were made within 15 minutes.