For more than 30 years, the Tile Roofing Institute (TRI) has served as the concrete and clay tile industry’s voice for code development and testing. TRI strives to educate consumers, architects, builders and code officials about tile’s resistance to fire, hail and seismic activity, as well as its durability and long-term value. The TRI web site features consumer publications, a photo gallery and lists of contractor, manufacturer and supplier members.