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Green maintainability design criteria for nanostructured titanium dioxide (TiO2) façade coatings

Michael Y.L. Chew (Department of Building, National University of Singapore, Singapore)
Sheila Conejos (Department of Building, National University of Singapore, Singapore)
Jessie Sze Long Law (Department of Building, National University of Singapore, Singapore) (Facilities and Estates Management Division (FED), Jurong Town Corporation, Jurong, Singapore)

International Journal of Building Pathology and Adaptation

ISSN: 2398-4708

Article publication date: 8 May 2017

Abstract

Purpose

Nanostructured titanium dioxide (TiO2) coatings can potentially address the current surge in façade cleaning cost, maintenance and labour problems. The purpose of this paper is to investigate potential maintainability issues and design challenges concerning the effective performance of TiO2 façade coatings’ hydrophilic properties, especially in tropical environments such as Singapore. This paper aims to establish a list of green maintainability design criteria to help minimise future TiO2 façade coating issues when this coating is applied on commercial buildings with concrete and stonemasonry façade materials.

Design/methodology/approach

A mixed-mode approach that includes a literature review, site investigation, instrumental case studies and expert interviews is used in this study.

Findings

TiO2 coatings help improve façade performance whilst offering environmental benefits to society. This study reports that green maintainability design criteria are vital requirements in designing sustainable buildings at the outset. The identified defects and issues will aid in ensuring the effectiveness of TiO2 application in building façades.

Originality/value

This study acts as a foundation for future researchers to strengthen this little researched area, serves as a useful guide in preventing possible TiO2 coating issues and promotes industry awareness of the use of TiO2 façade coatings.

Keywords

Acknowledgements

The authors would like to thank the sustainable construction and maintainability student group who were undertaking self-cleaning facade project this Semester 1-2016 term and to Ms Adeela Bte Ahmad Jailani, for assisting in the literature review and in the preparation of the tables and figures of this research paper.

Citation

Chew, M.Y.L., Conejos, S. and Law, J.S.L. (2017), "Green maintainability design criteria for nanostructured titanium dioxide (TiO2) façade coatings", International Journal of Building Pathology and Adaptation, Vol. 35 No. 2, pp. 139-158. https://doi.org/10.1108/IJBPA-01-2017-0001

Publisher

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Emerald Publishing Limited

Copyright © 2017, Emerald Publishing Limited