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Published VersionCC BY-NC V4.0, Open Access
Journal article
Effects of Climate on Exterior Wood Coating Performance: A Comparison of Three Industrial Coatings in a Warm-Summer Mediterranean and a Semi-Arid Climate in Oregon, USA
Coatings , Vol.12, pp.1-15
2022
Abstract
Wood exposed in exterior applications degrades and changes color due to weathering and fungal growth. Wood coatings can reduce the effects of weathering by reducing the damaging effects of ultraviolet light, reducing water absorption, and slowing fungal growth on the surface. Coating performance depends on the blend of resins, oils, and pigments and varies considerably among different wood species and conditions. Specific information describing expected service for different wood species and exposure conditions is not commonly available; certain combinations may work well in one climate or on one timber species, but underperform elsewhere. This study compared the performance of three industrial wood coatings on two wood species for two temperate climates under natural weathering conditions. Most of the coatings/species combinations lost their protective properties within 12 to 15 months; however, fungal growth was more prevalent at the wetter site than at the drier site for several combinations. Film-forming coatings often peeled and cracked, while penetrating coatings weathered and changed color relatively uniformly during the study. While no coating was completely effective, the results illustrate the benefits of using coatings that promote the development of natural, uniform-patinaed wood surfaces. The findings also guide coating maintenance programs for mass timber structures exposed to natural weathering conditions.
Details
- Title
- Effects of Climate on Exterior Wood Coating Performance: A Comparison of Three Industrial Coatings in a Warm-Summer Mediterranean and a Semi-Arid Climate in Oregon, USA
- Authors
- Kent Davis (Author) - University of TasmaniaScott Leavengood (Author) - Oregon State UniversityJeffrey J. Morrell (Author) - University of the Sunshine Coast, Queensland, National Centre for Timber Durability and Design Life
- Publication details
- Coatings , Vol.12, pp.1-15
- Publisher
- MDPI AG
- Date published
- 2022
- DOI
- 10.3390/coatings12010085
- ISSN
- 2079-6412
- Copyright note
- Copyright: © 2022 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
- Organisation Unit
- University of the Sunshine Coast, Queensland; National Centre for Timber Durability and Design Life; Forest Research Institute
- Language
- English
- Record Identifier
- 99605108502621
- Output Type
- Journal article
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web Of Science research areas
- Materials Science, Coatings & Films
- Materials Science, Multidisciplinary
- Physics, Applied