The Performance of Wood Decking after Five Years of Exposure: Verification of the Combined Effect of Wetting Ability and Durability

Wood is one of the most important construction materials, and its use in building applications has increased in recent decades. In order to enable even more extensive and reliable use of wood, we need to understand the factors affecting wood’s service life. A new concept for characterizing...

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Main Authors:	Miha Humar, Davor Kržišnik, Boštjan Lesar, Christian Brischke
Format:	Article
Language:	English
Published:	MDPI AG 2019-10-01
Series:	Forests
Subjects:	decay decking inherent durability moisture performance resistance model service life
Online Access:	https://www.mdpi.com/1999-4907/10/10/903

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spelling	doaj-d86a0ed0461042a9a8f8bdecacdeb5482020-11-25T02:29:51ZengMDPI AGForests1999-49072019-10-01101090310.3390/f10100903f10100903The Performance of Wood Decking after Five Years of Exposure: Verification of the Combined Effect of Wetting Ability and DurabilityMiha Humar0Davor Kržišnik1Boštjan Lesar2Christian Brischke3Biotechnical Faculty, Department for Wood Science and Technology, University of Ljubljana, Ljubljana SI1000, SloveniaBiotechnical Faculty, Department for Wood Science and Technology, University of Ljubljana, Ljubljana SI1000, SloveniaBiotechnical Faculty, Department for Wood Science and Technology, University of Ljubljana, Ljubljana SI1000, SloveniaWood Biology and Wood Products, University of Goettingen, D-37077 Goettingen, GermanyWood is one of the most important construction materials, and its use in building applications has increased in recent decades. In order to enable even more extensive and reliable use of wood, we need to understand the factors affecting wood’s service life. A new concept for characterizing the durability of wood-based materials and for predicting the service life of wood has recently been proposed, based on material-inherent protective properties, moisture performance, and the climate- and design-induced exposure dose of wooden structures. This approach was validated on the decking of a model house in Ljubljana that was constructed in October 2013. The decay and moisture content of decking elements were regularly monitored. In addition, the resistance dose D<sub>Rd</sub>, as the product of the critical dose D<sub>crit</sub>, and two factors taking into account the wetting ability of wood (k<sub>wa</sub>) and its inherent durability (k<sub>inh</sub>), were determined in the laboratory. D<sub>Rd</sub> correlated well with the decay rates of the decking of the model house. Furthermore, the positive effect of thermal modification and water-repellent treatments on the outdoor performance of the examined materials was evident, as well as the synergistic effects between moisture performance and inherent durability.https://www.mdpi.com/1999-4907/10/10/903decaydeckinginherent durabilitymoisture performanceresistance modelservice life
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Miha Humar Davor Kržišnik Boštjan Lesar Christian Brischke
spellingShingle	Miha Humar Davor Kržišnik Boštjan Lesar Christian Brischke The Performance of Wood Decking after Five Years of Exposure: Verification of the Combined Effect of Wetting Ability and Durability Forests decay decking inherent durability moisture performance resistance model service life
author_facet	Miha Humar Davor Kržišnik Boštjan Lesar Christian Brischke
author_sort	Miha Humar
title	The Performance of Wood Decking after Five Years of Exposure: Verification of the Combined Effect of Wetting Ability and Durability
title_short	The Performance of Wood Decking after Five Years of Exposure: Verification of the Combined Effect of Wetting Ability and Durability
title_full	The Performance of Wood Decking after Five Years of Exposure: Verification of the Combined Effect of Wetting Ability and Durability
title_fullStr	The Performance of Wood Decking after Five Years of Exposure: Verification of the Combined Effect of Wetting Ability and Durability
title_full_unstemmed	The Performance of Wood Decking after Five Years of Exposure: Verification of the Combined Effect of Wetting Ability and Durability
title_sort	performance of wood decking after five years of exposure: verification of the combined effect of wetting ability and durability
publisher	MDPI AG
series	Forests
issn	1999-4907
publishDate	2019-10-01
description	Wood is one of the most important construction materials, and its use in building applications has increased in recent decades. In order to enable even more extensive and reliable use of wood, we need to understand the factors affecting wood’s service life. A new concept for characterizing the durability of wood-based materials and for predicting the service life of wood has recently been proposed, based on material-inherent protective properties, moisture performance, and the climate- and design-induced exposure dose of wooden structures. This approach was validated on the decking of a model house in Ljubljana that was constructed in October 2013. The decay and moisture content of decking elements were regularly monitored. In addition, the resistance dose D<sub>Rd</sub>, as the product of the critical dose D<sub>crit</sub>, and two factors taking into account the wetting ability of wood (k<sub>wa</sub>) and its inherent durability (k<sub>inh</sub>), were determined in the laboratory. D<sub>Rd</sub> correlated well with the decay rates of the decking of the model house. Furthermore, the positive effect of thermal modification and water-repellent treatments on the outdoor performance of the examined materials was evident, as well as the synergistic effects between moisture performance and inherent durability.
topic	decay decking inherent durability moisture performance resistance model service life
url	https://www.mdpi.com/1999-4907/10/10/903
work_keys_str_mv	AT mihahumar theperformanceofwooddeckingafterfiveyearsofexposureverificationofthecombinedeffectofwettingabilityanddurability AT davorkrzisnik theperformanceofwooddeckingafterfiveyearsofexposureverificationofthecombinedeffectofwettingabilityanddurability AT bostjanlesar theperformanceofwooddeckingafterfiveyearsofexposureverificationofthecombinedeffectofwettingabilityanddurability AT christianbrischke theperformanceofwooddeckingafterfiveyearsofexposureverificationofthecombinedeffectofwettingabilityanddurability AT mihahumar performanceofwooddeckingafterfiveyearsofexposureverificationofthecombinedeffectofwettingabilityanddurability AT davorkrzisnik performanceofwooddeckingafterfiveyearsofexposureverificationofthecombinedeffectofwettingabilityanddurability AT bostjanlesar performanceofwooddeckingafterfiveyearsofexposureverificationofthecombinedeffectofwettingabilityanddurability AT christianbrischke performanceofwooddeckingafterfiveyearsofexposureverificationofthecombinedeffectofwettingabilityanddurability
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The Performance of Wood Decking after Five Years of Exposure: Verification of the Combined Effect of Wetting Ability and Durability

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