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Performance evaluation of siding materials subjected to radiant heat loads: Structural protection in the Wildland Urban Interface
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- Author / Creator
- Villa Coronel, Eder Alain
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A methodology was developed to evaluate the performance of different commercially available siding materials under radiant heat loads of 57 kW/m2 (high heat load condition, HHC) and 20 kW/m2 (low heat load condition, LHC). The siding materials that were selected for this study were engineered wood, fibre cement board, cedar siding, and vinyl siding, while Oriented Strand Board (OSB) was used as a control material. The prototypes that were fabricated for the experimental tests (burn tests) consisted of a siding material, a weather barrier, and OSB. Time to ignition and surface temperature data gathered from the burn tests of the siding material prototypes served to gauge the effect of the heat load on the prototypes and to establish their failure point. A variance analysis (ANOVA) showed that the performance of some siding materials was significantly different. Results from the burn tests showed that cedar siding was the least ignition resistant material while fibre cement board was the most ignition resistant material under both radiant heat loads. In fact, the siding of the latter prototype did not ignite. Under the HHC, the results suggested that the use of engineered wood material represents no advantage when compared to bare OSB. Under the LHC, independent of the failure mechanism of engineered wood and vinyl siding, there was no significant difference between their times to reach the failure point. Transient temperature profiles were obtained from a transient heat conduction model that was used to predict the time to ignition. The predicted values resulted in lower error when compared with other solutions found in the literature.
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- Subjects / Keywords
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- Graduation date
- Fall 2019
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- Type of Item
- Thesis
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- Degree
- Master of Science
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- License
- Permission is hereby granted to the University of Alberta Libraries to reproduce single copies of this thesis and to lend or sell such copies for private, scholarly or scientific research purposes only. Where the thesis is converted to, or otherwise made available in digital form, the University of Alberta will advise potential users of the thesis of these terms. The author reserves all other publication and other rights in association with the copyright in the thesis and, except as herein before provided, neither the thesis nor any substantial portion thereof may be printed or otherwise reproduced in any material form whatsoever without the author's prior written permission.