Karla Roffeis was on the East German volleyball team which won the silver medal at the 1979 and a gold medal at the 1983 Europeans. In 1976, she played at the Montréal Olympics, but the GDR team lost all its matches, including the match for fifth place against Cuba. Four years later at Moskva she won a silver medal, losing twice against the Soviet Union both in the preliminary round and the final by 3-1 in sets.
Domestically, Roffeis played with SC Traktor Schwerin from 1973-85 and helped them win the East German Championships in 1977 and 1980-84. She was also on the squad winning the European Champions Cup in 1978. By profession, she became a teacher.