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Photocatalytic self-cleaning coatings for building facade maintenance. Performance analysis through a case-study application

Photocatalytic self-cleaning coatings for building facade maintenance. Performance analysis... Facade maintenance has become a key aspect in building management, due the specific actions involved and operation related costs. Within this framework, the application of titanium dioxide photocatalytic sol-gel products on facade elements offers a wide range of opportunities to ensure proper functionality maintenance over time. This paper illustrates the self-cleaning performance of titanium dioxide and silicon dioxide based coatings applied to different kinds of cladding materials. All tested samples were opaque. Preliminary laboratory tests were performed by means of water contact angle measurements to verify hydrophobic and hydrophilic behaviour prior to outdoor application. Afterwards, outdoor tests were performed to monitor colour variation over a 36-month period to verify product effectiveness and durability. Results proved that the application of functionalized nanotechnological coating to a facade can significantly facilitate cleaning operations and reduce the necessary frequency over time. In addition, the output provides some preliminary information about the exposure condition influence on self-cleaning performance, which could be further investigated in the future. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Facade Design and Engineering IOS Press

Photocatalytic self-cleaning coatings for building facade maintenance. Performance analysis through a case-study application

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Publisher
IOS Press
Copyright
Copyright © 2016 IOS Press and the authors. All rights reserved
ISSN
2213-302X
eISSN
2213-3038
DOI
10.3233/FDE-160054
Publisher site
See Article on Publisher Site

Abstract

Facade maintenance has become a key aspect in building management, due the specific actions involved and operation related costs. Within this framework, the application of titanium dioxide photocatalytic sol-gel products on facade elements offers a wide range of opportunities to ensure proper functionality maintenance over time. This paper illustrates the self-cleaning performance of titanium dioxide and silicon dioxide based coatings applied to different kinds of cladding materials. All tested samples were opaque. Preliminary laboratory tests were performed by means of water contact angle measurements to verify hydrophobic and hydrophilic behaviour prior to outdoor application. Afterwards, outdoor tests were performed to monitor colour variation over a 36-month period to verify product effectiveness and durability. Results proved that the application of functionalized nanotechnological coating to a facade can significantly facilitate cleaning operations and reduce the necessary frequency over time. In addition, the output provides some preliminary information about the exposure condition influence on self-cleaning performance, which could be further investigated in the future.

Journal

Journal of Facade Design and EngineeringIOS Press

Published: Jan 1, 2017

References