"I'm very excited to be a part of the Auburn football family and work for an individual in Coach Chizik that has had a tremendous amount of success," Roof said on Tuesday night.
"There have been a lot of great players and coaches come through Auburn and I'm excited to become a part of the rich and storied tradition of Auburn University and its football program."
Chizik, who now has three spots left to fill on his coaching staff, said, "Ted has a wealth of experience and success as a defensive coach, and philosophically, we think alike.
"He is a high-energy individual who is involved in every aspect of the defense. Ted took a Minnesota defense and made dramatic improvements in his one year as defensive coordinator. It was a defense that was very physical and aggressive, and created a lot of turnovers.
"Being from Georgia, Ted has spent a great deal of his career coaching in the South and is very familiar with this league," Chizik adds.
Minnesota head football coach Tim Brewster had praise for Roof on Tuesday after losing the coordinator to Auburn. "Our defense improved a great deal under Coach Roof this past season," Brewster said. "Good coaches are always going to be in demand and I wish Ted the best of luck in the future."
It is not known what position Roof will coach on defense. He will be the second defensive coach on the staff joining James Willis, who coached linebackers for the Tigers the past three seasons.
The Minnesota Golden Gophers ranked 79th in the country in total defense allowing 383.6 yards and 61st in scoring defense allowing 24.8 points per game this season on way to a 7-6 record and an appearance in the Insight Bowl. The 2008 season under Roof was a marked improvement from 2007 as the Gophers were 109th in the country allowing 36.7 points per contest and dead last in Division I allowing 518.7 yards prior to his arrival.
Roof was head coach at Duke from 2003-2007 as well as interim head coach for the final five games of the 2002 season. He started that season as the defensive coordinator. Roof was 6-45 during his head coaching tenure in Durham.
Roof, a native of Lawrenceville, Ga., where he was a star player at Central Gwinnett High School, played outside linebacker at Georgia Tech under Bill Curry from 1982-1985 and amassed 417 career tackles. He received a bachelor's degree in management from Georgia Tech in 1987 and started his coaching career at Alabama from 1987-1988 as a graduate assistant.
He was a four-year letterwinner and a three-year starter and a member of Tech's "Black Watch" defense his senior year serving as team captain for a 9-2-1 squad that defeated Michigan State in the All-American Bowl.
An All-ACC pick in 1985, he finished with 417 career tackles, which currently ranks him seventh in Georgia Tech history. He made 25 tackles in one game vs. Tennessee, the second highest total in school history. Roof was named the Defensive Back of the Year in 1985 by the Atlanta Touchdown Club.
He coached linebackers at West Georgia in 1989, outside linebackers at Duke from 1990-1993 and at Massachusetts in 1994. Roof's first coordinator role was at Massachusetts during the 1995 and 1996 seasons. After a one-year stint at Western Carolina, Roof oversaw linebackers at his alma matter for the 1998 season before becoming Tech's defensive coordinator from 1999-2001.
In 2000 Roof was nominated for the Broyles Award, given annually to the top assistant coach in the country.
As a player, Roof earned All-ACC honors as a senior and is the seventh-leading tackler in Georgia Tech school history. He also holds the second-highest mark for tackles in a game with 25 against Tennessee. Roof was a three-year starter on the "Black Watch" defense and was a team captain as a senior.
Roof, 45, is married to the former Pam Ash and they have two children--10-year old twin boys Terrence Davis and Michael Edwin.
Roof joins five other assistants on Chizik's staff including Gus Malzahn (offensive coordinator), Curtis Luper (running backs), Jay Boulware (special teams), Trooper Taylor (assistant head coach and receivers) and James Willis.