Mediterranean cities are characterized by sloped roofs with ceramic tiles of traditional colors such as brick red in different tones. Their solar reflectance is generally low and can cause overheating of the building due to solar gains during the hot season. In this work, an innovative approach is tested to achieve roof tiles with high capacity of rejecting solar radiation. It consists of using a cool-colored tile with relatively high solar reflectance, combined with a thin insulating layer attached below the tile and made of a silica-gel super-insulating material. An aluminum foil with very low thermal emittance is also applied below the insulating layer. Along the perimeter of each tile, line brushes are attached in order to enclose an almost sealed air space between the aluminum foil and the roof slab below when the tiles are supported on wooden battens. Composite tiles like that outlined here can provide a strong increase of roof thermal resistance, helpful to control either heat loss in winter, or building overheating in summer. They can be installed onto an existing roof, for instance the sloped tile roof of a historical or traditional building, with no need to modify the roof height and structure.

A composite cool colored tile for sloped roofs with high 'equivalent' solar reflectance / Ferrari, Chiara; Libbra, Antonio; Cernuschi, Federico Maria; De Maria, Letizia; Marchionna, Stefano; Barozzi, Matteo; Siligardi, Cristina; Muscio, Alberto. - In: ENERGY AND BUILDINGS. - ISSN 0378-7788. - STAMPA. - 114:(2016), pp. 221-226. [10.1016/j.enbuild.2015.06.062]

A composite cool colored tile for sloped roofs with high 'equivalent' solar reflectance

FERRARI, CHIARA;LIBBRA, Antonio;SILIGARDI, Cristina;MUSCIO, Alberto
2016

Abstract

Mediterranean cities are characterized by sloped roofs with ceramic tiles of traditional colors such as brick red in different tones. Their solar reflectance is generally low and can cause overheating of the building due to solar gains during the hot season. In this work, an innovative approach is tested to achieve roof tiles with high capacity of rejecting solar radiation. It consists of using a cool-colored tile with relatively high solar reflectance, combined with a thin insulating layer attached below the tile and made of a silica-gel super-insulating material. An aluminum foil with very low thermal emittance is also applied below the insulating layer. Along the perimeter of each tile, line brushes are attached in order to enclose an almost sealed air space between the aluminum foil and the roof slab below when the tiles are supported on wooden battens. Composite tiles like that outlined here can provide a strong increase of roof thermal resistance, helpful to control either heat loss in winter, or building overheating in summer. They can be installed onto an existing roof, for instance the sloped tile roof of a historical or traditional building, with no need to modify the roof height and structure.
114
221
226
A composite cool colored tile for sloped roofs with high 'equivalent' solar reflectance / Ferrari, Chiara; Libbra, Antonio; Cernuschi, Federico Maria; De Maria, Letizia; Marchionna, Stefano; Barozzi, Matteo; Siligardi, Cristina; Muscio, Alberto. - In: ENERGY AND BUILDINGS. - ISSN 0378-7788. - STAMPA. - 114:(2016), pp. 221-226. [10.1016/j.enbuild.2015.06.062]
Ferrari, Chiara; Libbra, Antonio; Cernuschi, Federico Maria; De Maria, Letizia; Marchionna, Stefano; Barozzi, Matteo; Siligardi, Cristina; Muscio, Alberto
File in questo prodotto:
File Dimensione Formato  
2016-02_Energy&Buildings 114_pp221-226.pdf

non disponibili

Descrizione: Articolo principale
Tipologia: Versione dell'editore (versione pubblicata)
Dimensione 1.39 MB
Formato Adobe PDF
1.39 MB Adobe PDF   Visualizza/Apri   Richiedi una copia
_IC2UHI3_212_CF_v13.pdf

accesso aperto

Tipologia: Post-print dell'autore (bozza post referaggio)
Dimensione 683.45 kB
Formato Adobe PDF
683.45 kB Adobe PDF Visualizza/Apri
Pubblicazioni consigliate

Caricamento pubblicazioni consigliate

Licenza Creative Commons
I metadati presenti in IRIS UNIMORE sono rilasciati con licenza Creative Commons CC0 1.0 Universal, mentre i file delle pubblicazioni sono rilasciati con licenza Attribuzione 4.0 Internazionale (CC BY 4.0), salvo diversa indicazione.
In caso di violazione di copyright, contattare Supporto Iris

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11380/1119000
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 28
  • ???jsp.display-item.citation.isi??? 22
social impact