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Sustainability 2016, 8(8), 753; doi:10.3390/su8080753

Cool Marble Building Envelopes: The Effect of Aging on Energy Performance and Aesthetics

1
Department of Civil, Construction and Environmental Engineering, Sapienza University of Rome, Via Eudossiana 18, Rome 00184, Italy
2
Department of Engineering, Università di Perugia, Via G. Duranti 93, Perugia 06125, Italy
3
Department of Civil and Urban Engineering & Center for Urban Science and Progress, New York University, 6 Metrotech Center, Brooklyn, NY 11201, USA
*
Authors to whom correspondence should be addressed.
Academic Editor: Marc A. Rosen
Received: 27 June 2016 / Revised: 28 July 2016 / Accepted: 29 July 2016 / Published: 5 August 2016
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Abstract

Marble envelopes represent a relatively common architectural solution used in variety of historic, modern and contemporary building facades. White marble envelopes have been shown to reduce solar heat gains, while improving indoor thermal comfort and energy efficiency in summer time. While marble is useful in this context, the urban atmosphere accelerates the degradation of marble elements. This leads to changes in optical characteristics, hence the aesthetics, and affects the energy efficiency benefits offered by white marble facades. These issues are investigated in order to predict the impact of degradation on energy performance and to the aesthetic value, such as change of color and luminosity. In this study, surface degradation of white marble is analyzed by means of accelerated weathering in the laboratory while examining changes to the optical characteristics of the materials. A dynamic simulation is carried out to assess the energy performance of a building as a case study. View Full-Text
Keywords: building envelope; cool material; solar reflectance; optical characterization; acid rain degradation; pollution; color change; energy efficiency in buildings; urban heat island building envelope; cool material; solar reflectance; optical characterization; acid rain degradation; pollution; color change; energy efficiency in buildings; urban heat island
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Rosso, F.; Pisello, A.L.; Jin, W.; Ghandehari, M.; Cotana, F.; Ferrero, M. Cool Marble Building Envelopes: The Effect of Aging on Energy Performance and Aesthetics. Sustainability 2016, 8, 753.

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