Building envelope protects the indoor built environment from external conditions. It accounts for a substantial cost of the building and, to a large extent, determines the energy and comfort performance of perimeter building zones. Responsive and high performance envelope elements can be multi-functional: they provide insulation, enable solar protection and natural ventilation, generate energy, reduce cooling demand and heat island effects, and improve the overall quality of the building.
Related projects
Integrated, coordinated control of envelope, lighting and HVAC systems
Smart curtain wall systems with embedded sensing and control capabilities
Cool roofs and and reflective building surfaces: impact on energy use and indoor conditions
Advanced envelope systems with integrated energy generation (PI: Prof. Athienitis)
Airflow and heat transfer near curtain walls
Related publications
A. Tzempelikos, S. Lee, "Cool roofs in the US: the impact of roof reflectivity, insulation and attachment method on annual energy cost", Energies, 14(22), 7656, (2021).
M. Kim, I. Konstantzos, A. Tzempelikos, “Real-time daylight control using a low-cost, window mounted HDRI sensor”, Building and Environment, 177, 106912 (2020).
Y. Feng, E. Witkoske, E.S. Bell, Y. Wang, A. Tzempelikos, I. Ferguson, N. Lu, "Advanced metal oxides and nitrides thermoelectric materials for energy harvesting", ES Materials and Manufacturing, 1, 13-20 (2018).
H. Shen, A. Tzempelikos, A.M. Atzeri, A. Gasparella, F. Cappelletti, “Dynamic commercial facades versus traditional construction: energy performance and comparative analysis”, ASCE Journal of Energy Engineering, 141(4), 04014041 (2015).
H. Shen, H. Tan, A. Tzempelikos, “The effect of reflective coatings on building surface temperatures, indoor environment and energy consumption –an experimental study”, Energy and Buildings, 43, 573-580 (2011).
A. Tzempelikos, A.K. Athienitis, A. Nazos, “Integrated design of perimeter zones with glass facades”, ASHRAE Transactions (Technical paper OR-10-049), 116(1), 461-477 (2010).
A. Tzempelikos, P. Karava, L.M. Candanedo, M. Bessoudo, A.K. Athienitis, “Investigation of thermal and airflow conditions near glazed facades using particle image velocimetry and CFD simulation -eliminating the need for secondary perimeter heating systems”, ASHRAE Transactions (Technical paper CH-09-054), 115(1), 523-537 (2009).
A. Tzempelikos, A.K. Athienitis, P. Karava, “Simulation of façade and envelope design options for a new institutional building”, Solar Energy, 81(9), 1088-1103 (2007).
H. Shen, A. Tzempelikos, “Development of a façade retrofit performance guide using climate-based analysis including dynamic façade systems”, Proceedings of 3rd High Performance Buildings conference at Purdue, July 2014.
Y-C. Chan, A. Tzempelikos, “A simulation and experimental study of the impact of passive and active façade systems on the energy performance of building perimeter zones”, Proceedings of ASHRAE Annual Conference, San Antonio, Texas, June 2012.
L.E. Robinson, A.K. Athienitis, A. Tzempelikos, “Development of a design methodology for integrating semi-transparent photovoltaics in building facades”, Proceedings of 3rd Solar Buildings Research Network conference, Fredericton, August 2008.
L. M. Candanedo, P. Karava, M. Bessoudo, A. Tzempelikos, A. K. Athienitis, L. Handfield, “Airflow and thermal simulation in a controlled test chamber with different heating configurations using CFD modeling”, Proceedings of 2nd Solar Buildings Research Network conference, Calgary, June 2007.
A.K. Athienitis, A. Tzempelikos and Y. Poissant, “Investigation of the performance of a double-skin facade with integrated photovoltaic panels”, Proceedings of EuroSun2004, ISES European Solar Conference, Freiburg, Germany, June 2004.