After several decades in a dormant state and more than a year of intensive planning, the National Slate Association (NSA) was reorganized in 2002 and held its first annual meeting on February 13, 2003.
The concept of reorganizing the NSA sprang from the collective inspiration of Dave Leeland, Leeland Slate Roof Repair Inc.; Bill Marcum, Martech Associates; and Brian Stearns, Vermont Slate and Copper Services Inc. (together with his associates, the authors of The Slate Book). The idea came about from a growing interest in improving the slate roofing, a roofing industry segment that has enjoyed significant growth for several years, and is on course to continue growing.