Haug got his Examen artium from the Music program at Rud High School and a Master at Norges Musikkhgskole (1994-2001). Thereafter he has been active contributor as a composer in many of the bands he plays in. With the acoustic trio Tri O'Trang (Tri trang) he cooperates with Helge Lien (piano) and Torben Snekkestad (saxophones). They have released the recordings Liker (2000), Fordivi (2002), Plays Jon Eberson (2005) and M (2006). In duo cooperation with Live Maria Roggen he released Tu'Ba (1998).
With the band 1300 Oslo he released a live album Live in the north in 2001 and has been a regular member of the etno-jazz trio Akku from 1996, in a cooperation with the joiker Elfi Sverdrup and the jazz singer Ruth Wilhelmine Meyer. The latter released the albums Akku in 2001. With the trio Moment's Notice featuring Knut Aalefjr (drums) og Vidar Sther (saxophones), he released the record Moment's notice (2003) and Sorryhappy (2005). In addition, he has been an active member of the band Trygve Seim Ensemble with releases like Sangam (ECM, 2004). He received Statens arbeidsstipend (Norwegian Government artist grant) in 2004-06. In the same period he taught at the Norges Musikkhgskole (as improvisation and principal instrument teacher).
Haugs with wind orchestra, presents his own compositions on the record Vinterfjs (Curling Legs, 2005). Here he pick up on his long lasting cooperation with saxophonist Trygve Seim, in addition to Per Oddvar Johansen (drums) and Mats Eilertsen (bass). In 2008 the release of pieces for quintet with the bassoon and trombone followed on the album Fabatune. He toured extensively in Norway for Rikskonsertene (2006), with a solo concert, Luft og kjrlighet, presenting wind instruments for a young audience in, often primary school classes. In 2009 he went to Egypt wit Trygve Seim and Frode Barth, performing several concerts.