Roofers Local Union 20 was chartered in 1919 with the United Union of Roofers Waterproofers and Allied Workers. Preventing moisture intrusion is the main focus of our industry. Our signatory contractors have an average business history of over 50 years. A few have been in the industry for over 100 years!
- November 24, 1919 - Local #20, Kansas City, Kansas, was chartered
- February 16, 1943 - Local #20-B, Topeka, Kansas, was chartered (revoked in 1992 and Topeka became a part of Local #20)
- April 1, 1981 - Local #15, Wichita, Kansas, merged with Local #20
- June 1, 1982 - Local #20-D and #20-C charters revoked
- November 1980 - Local #89, St. Joseph, Missouri, merged with Local #20
- June 1, 1985 - Local #62, Springfield, Missouri, merged with Local #20
- December 1, 1991 - Local #93, Jefferson City, Missouri, merged with Local #20
- June 22, 1994 - Local #260, Ft. Smith, Arkansas, merged with Local #20
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