Fraunhofer CSE's Building Enclosures and Materials Group focuses on advanced thermal control technologies, applied to building enclosures, their components, and the whole building. The research group develops, designs and analyzes novel thermal insulations, thermal storage materials, radiant insulations, environmental barriers, structural materials and systems, building envelope technologies, controllable building enclosures, and building-integrated solar systems, through numerical analysis as well as laboratory and field testing. In addition, the group works to advance numerical tools for thermal and hygrothermal simulations of building components and whole buildings.

Recent Building Enclosures News

Massachusetts State Reps Visit Fraunhofer CSE’s Living Lab in South Boston.

Fraunhofer CSE, cleantechnotes.org, February 15, 2018. Last month, Fraunhofer CSE was honored to host Massachusetts State House Representatives Jon Hecht (29th Middlesex...

Fraunhofer CSE Hosts Inaugural Meeting of Phase Change Materials Industry Association.

Williams, A., cleantechnotes.org, November 13, 2017. On October 5th 2017, Fraunhofer CSE hosted the inaugural meeting of the Phase Change Materials Industry Association of...

Upcoming Events

BEST5 Conference on Building Enclosure Science and Technology.

April 15, 2018 - April 18, 2018. National Institute of Building Sciences BETEC, BEC. Loews Philadelphia Hotel, Philadelphia, PA.
Fraunhofer CSE’s Jan Kośny, David Yarbrough, R&D Services co-chair BEST5, Nitin Shukla, Fraunhofer CSE is session chair...

Numerical and Experimental Analysis of Thermal Performance of Residential Attics Containing Aerogel-based Radiant Barrier Systems.

Kosny, J. - May 9, 2018, 9:00 AM. 2018 RIMA International Conference. Reflective Insulation Manufacturers Association International (RIMA). Marriott Los Sueňos Resort, Puntarenas, Costa Rica.
Jan Kośny is a keynote speaker.

Latest Presentations & Publications

Linseed oil as a natural modifier of rigid polyurethane foams

Czlonka, S., Bertino, M.F., Kosny, J., Strakowska, A., Maslowski, M., Strzelec, K. (2018). In: Industrial Crops and Products. 115 : Elsevier B.V., pp. 40-51.

An innovative practical battery thermal management system based on phase change materials: Numerical and experimental investigations

Lazrak, A., Fourmigué, J., Robin, J. (2018). In: Applied Thermal Engineering. 128 : Elsevier, pp. 20-32.

Chapter 3, Heat and Mass Transfer, Section 3.4.3: Phase Change Materials, Melting and Freezing

Alexiades, V., Kosny, J. (2017). In: CRC Handbook of Thermal Engineering. 2nd ED New York: CRC Press, Taylor & Francis Group, pp. 393 - 416.

Lab and Testing Facilities

The Building Enclosures Group has indoor testing capabilities in the Center headquarters in Boston and also takes advantage of the environmental exposure testing capabilities in Albuquerque, New Mexico as well as in South Boston and Revere, Massachusetts.

Our Research Facilities


Fraunhofer CSE partners with a wide-array of leading governmental, industry, academic and research institutions around the world.

Our Partners


Jan Kośny, Ph.D.
Director, Building Enclosures and Materials
Office +1 (617) 714-6525