The Norwegian Union of Building Industry Workers (Norwegian: Norsk Bygningsindustriarbeiderforbund, NBIAF) was a trade union in Norway, organized under the national Norwegian Confederation of Trade Unions. Chairmen include Elias Volan (1923–1927), Jens Tangen (1935–1940). Ingvald B. Aase served as secretary in 1930 and became chairman in 1933.