The design and construction by a volunteer crew from the National Chimney Sweep Guild (NCSG) of a triple-spired brick chimney with a twist in each spire is described. It was built on the roof of the CSIA Technology Center in Plainfield, Indiana. The chimneys have a total height of about 9 feet above the roofline. Each brick chimney is topped with a solid copper chase cover and sandblasted granite plaque. The three plaques display CSIA and NCSG logos, as well as 2001, the year the Center was completed.