JOPLIN, Mo.–(BUSINESS WIRE)–As America celebrates 250 years of independence, TAMKO Building Products, Proud Partner of the Kansas City Chiefs, announces the return of Operation Rooftop for its third consecutive year. The roof giveaway sweepstakes honors current and former members of the U.S. military by providing one American hero each year with a new roof. What began as a shared commitment between TAMKO and the Kansas City Chiefs has grown into an annual patriotic tradition focused on recogn