Development of Clay Tile Coatings for Steep-Sloped Cool Roofs

Anna Laura Pisello, Franco Cotana, Andrea Nicolini and Lucia Brinchi
Additional contact information
Anna Laura Pisello: CIRIAF–Interuniversity Research Center on Pollution Control and Environment Protection "Mauro Felli", University of Perugia, Via Duranti 67, Perugia 06125, Italy
Franco Cotana: CIRIAF–Interuniversity Research Center on Pollution Control and Environment Protection "Mauro Felli", University of Perugia, Via Duranti 67, Perugia 06125, Italy
Andrea Nicolini: CIRIAF–Interuniversity Research Center on Pollution Control and Environment Protection "Mauro Felli", University of Perugia, Via Duranti 67, Perugia 06125, Italy
Lucia Brinchi: CIRIAF–Interuniversity Research Center on Pollution Control and Environment Protection "Mauro Felli", University of Perugia, Via Duranti 67, Perugia 06125, Italy

Energies, 2013, vol. 6, issue 8, 1-17

Abstract: Most of the pitched roofs of existing buildings in Europe are covered by non-white roofing products, e.g., clay tiles. Typical, cost effective, cool roof solutions are not applicable to these buildings due to important constraints deriving from: (i) the owners of homes with roofs visible from the ground level; (ii) the regulation about the preservation of the historic architecture and the minimization of the visual environment impact, in particular in historic centers. In this perspective, the present paper deals with the development of high reflective coatings with the purpose to elaborate “cool” tiles with the same visual appearance of traditional tiles for application to historic buildings. Integrated experimental analyses of reflectance, emittance, and superficial temperature were carried out. Deep analysis of the reflectance spectra is undertaken to evaluate the effect of different mineral pigments, binders, and an engobe basecoat. Two tile typologies are investigated: substrate-basecoat-topcoat three-layer tile and substrate-topcoat two-layer tile. The main results show that the developed coatings are able to increase the overall solar reflectance by more than 20% with acceptable visual appearance, suitable for application in historic buildings. Additionally, the effect of a substrate engobe layer allows some further contribution to the increase of the overall reflectance characteristics.

Keywords: cool roofs; pigment characterization; solar spectral optical properties; energy efficiency in buildings; historic buildings; spectrally selective cool colors (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2013
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (9)

Downloads: (external link)
https://www.mdpi.com/1996-1073/6/8/3637/pdf (application/pdf)
https://www.mdpi.com/1996-1073/6/8/3637/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:6:y:2013:i:8:p:3637-3653:d:27453

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().