Combined Thermal Effect of Cool Roof and Cool Façade on a Prototype Building

Abstract Recently, huge efforts were made to develop new passive solutions for optimizing building summer thermal-energy behavior. While cool roofs are well investigated, a lack of knowledge is detected about the benefits deriving from the combination of cool roofs and cool facades. This work aims at determining the thermal performance of innovative cool roofing membrane and cool facade painting when applied on a prototype building, through continuous monitoring. Additionally, sensitivity analysis is performed to investigate the thermal benefits of the coupled solutions. Results showed that the combined solutions generate significant passive cooling in terms of indoor operative temperature reduction.

[1]  Dionysia Kolokotsa,et al.  On the cooling potential of cool roofs in cold climates: Use of cool fluorocarbon coatings to enhance the optical properties and the energy performance of industrial buildings , 2014 .

[2]  Chen Yu,et al.  Thermal Impact of Strategic Landscaping in Cities: A Review , 2009 .

[3]  A. Spanou,et al.  Building and Environment , 2012 .

[4]  H. Akbari Shade trees reduce building energy use and CO2 emissions from power plants. , 2002, Environmental pollution.

[5]  Cinzia Buratti,et al.  Effect of dynamic characteristics of building envelope on thermal-energy performance in winter conditions: In field experiment , 2014 .

[6]  E. Bozonnet,et al.  Cool materials impact at district scale—Coupling building energy and microclimate models , 2014 .

[7]  M. Santamouris Using cool pavements as a mitigation strategy to fight urban heat island—A review of the actual developments , 2013 .

[8]  C. Romeo,et al.  Impact of a cool roof application on the energy and comfort performance in an existing non-residential building. A Sicilian case study , 2013 .

[9]  Maria Kolokotroni,et al.  Cool roof technology in London: An experimental and modelling study , 2013 .

[10]  Gian Marco Revel,et al.  Cool products for building envelope - Part I: Development and lab scale testing , 2014 .

[11]  G. M. Revel,et al.  Cool products for building envelope – Part II: Experimental and numerical evaluation of thermal performances , 2014 .

[12]  M. Santamouris Cooling the cities – A review of reflective and green roof mitigation technologies to fight heat island and improve comfort in urban environments , 2014 .

[13]  Yiping Ma,et al.  Preparation and solar reflectance spectra of chameleon-type building coatings ☆ , 2001 .

[14]  J. Xamán,et al.  Thermal performance of reflective materials applied to exterior building components—A review , 2014 .

[15]  F. Allard,et al.  Experimental measurement of cool facades’ performance in a dense urban environment , 2012 .