Performance of Near-Infrared Reflective Tile Roofs

Abstract:

A green pigments based on a Cr₂O₃-Al₂O₃-V₂O₅-TiO₂ composition have been synthesized and the ability of these pigments used with ceramic glazes to confer high solar reflectance has also been studied. Cr₂O₃ is the host component and the adding mixtures of Al₂O₃, V₂O₅ and TiO₂ as the guest components. The composition denoted by T1 composes of Cr₂O₃, TiO₂, Al₂O₃ and V₂O₅ are 80, 4, 14 and 2 wt%, respectively, gives near infrared solar reflectance of 82.8%. T1 green pigments were prepared for ceramic cool tile roofs (denoted by T1 cool roof). The comparison study on the effectiveness of T1 ceramic cool roofs and a commercial ceramic cool tile roofs (denoted by C cool roof) show that the T1 cool roof has given a better result by keeping the tested room about 4 °C cooler.

• Periodical: Advanced Materials Research (Volume 770)
• Pages: 30-33
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.770.30
• Online since: September 2013
• Authors: Thadsanee Thongkanluang, Jantharat Wutisatwongkul, Neramitr Chirakanphaisarn, Artorn Pokaipisit
• Keywords: Near-Infrared Reflective, Reflective Ceramic Roof

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