The International Slate and Tile Roofers Union of America was chartered by the American Federation of Labor on June 5, 1903. The International Brotherhood of Composition Roofers, Damp and Waterproof Workers received their AFL charter on Nov. 6, 1906. In 1919, the organizations met in Pittsburgh and merged to form the United Slate, Tile and Composition Roofers, Damp and Waterproof Workers Association. By 1978, the union had 28,000 members. It was during that year the union adopted its new name, the United Union of Roofer’s, Waterproofer’s and Allied Worker’s. Local 54 was chartered in November of 1919. It is our 100th year anniversary!