Rolf is a Research Fellow at the Center for Sustainable Building Research. He holds a Bachelor of Arts degree in Physics and Mathematics from St. Olaf College in Northfield, MN, and a Master of Architecture degree from the University of Minnesota (UMN). He is currently working towards a Master of Science degree in Sustainable Design at the College of Design at UMN. Prior to his position as a Research Fellow, Rolf worked at the CSBR as a Research Assistant for two years. Rolf has also worked for local architecture firms that specialize in sustainable design, and worked as a carpenter for area home builders. Some past projects at the CSBR include work on the CSBR Site and Building Carbon Calculator, comparative analysis for the Design Guidelines for Sustainable Housing report, which examined nineteen different rating systems and design guidelines from around the world, and analysis of energy use in two Washington County service centers, done as a component of a broader post occupancy evaluation report. Current projects include work on the Minnesota Sustainable Housing Initiative web site and database, and thesis research on the costs and energy performance of residential building envelopes. For the 2010-2011 academic year, Rolf won a Fulbright scholarship to continue his thesis research in Trondheim, Norway. There he will work in collaboration with the Center for Zero Emissions Buildings, investigating cold-climate residential envelopes.