Rolf Jacobson is a Research Fellow and Certified Passive House Consultant (CPHC) at the Center for Sustainable Building Research (CSBR). He holds a Bachelor of Arts degree from St. Olaf College and Master of Science and Master of Architecture degrees from the University of Minnesota. Through the Fulbright program, Rolf conducted research in Norway on the building science of Passive House envelopes optimized for cold climates. While there, he used energy and moisture modeling tools such as WUFI and THERM to investigate and evaluate a wide range of residential building assemblies. More recently, Rolf has worked with the NorthernSTAR Building America team on a variety of research topics including an in-situ study of residential ground source heat pumps, innovative panelized construction systems, above and below-ground wall insulation retrofits, and innovative “thin triple” glazed windows. His work at the CSBR is primarily focused on high performance affordable housing and development of Minnesota’s Sustainable Building B3 Guidelines.