The founder and chairman of CentiMark has died. Family members announced the passing of Edward B. Dunlap, Jr., at his Upper St. Clair home on Saturday, July 23rd. He was born on September 18, 1938. They say Dunlap died after an extended illness. CentiMark Corporation is a national roofing contractor company headquartered in Canonsburg, Pennsylvania. The company also has a flooring division, QuestMark, and a Canadian Roofing subsidiary.