Your search resulted in 561 documents. Displaying 25 entries per page.
Premature adhesion failure of exterior wood coatings – The influence of substrate temperature at coating application and moisture accumulation during storage
2022 - IRG/WP 22-40937
…studied: the influence of substrate temperature at coating application and moisture accumulation during storage on the adhesion of waterborne coating systems. In the first experiment, 4 batches of wood specimens were submitted to 4 different temperatures (-25°C, 0°C, 10°C, 20°C) before coating. In the second…
U Hundhausen
In-line quality control of the film thickness in industrial coating processes for exterior cladding
2018 - IRG/WP 18-40835
…industrial coating processes included solely the application of pigmented primers; these however provide only a short protection of the wood surface and the application of a top coat is required during the first 6 to 12 months after mounting the cladding boards. In recent years, the trend has been going to…
U Hundhausen, M Slabohm
Comparison of colour change in wood clear-coating systems including inorganic and organic UV absorbers for exterior use
2010 - IRG/WP 10-40499
…inorganic and organic UV absorbers used in a wood coating application against weathering. Our study has investigated the colour changes of selected UV absorbers; hombitec 402 RM from the Sachtleben Company as an inorganic UV absorber, tinuvin 477 DW from the Ciba Company as an organic UV absorber. The study was…
Ö Özgenç, B Forsthuber, A Teischinger, C Hansmann
Natural durability of European wood species for exterior use above ground
2003 - IRG/WP 03-10499
The main interest in using more timber for exterior constructions is to protect the environment, where wood is considered an environmentally friendly material. However, chemicals for wood protection are getting more and more restricted, consequently, the focus on the natural durability of wood is…
B Lindegaard, N Morsing
Influence of plasma treatment on the coatability of wood primer with a topcoat for exterior use
2025 - IRG/WP 25-30828
The coatability of oil, or of solvent-borne alkyd resin wood primers with waterborne acrylic finish is the subject of much debate, but not much information can be found in the scientific literature on this topic. The aim of our study was therefore to evaluate…
M Petrič, L Albreht, N B Štrus, E Keržič, M Pavlič, J Žigon, S Dahle
Proposal for New Evaluation Criteria for Exterior Products to Achieve a Circular Economy
2025 - IRG/WP 25-50408
…resource circulation and realizing a circular economy for exterior products remains unestablished. To support the selection of environmentally conscious wooden exterior products that contribute to the realization of a circular economy, this study attempts to propose a systematic evaluation criterion for exterior…
K Murakami, T Fujii, Y Iijima, T Hikiji
Terpene-based latex synthesis for exterior wood protection
2024 - IRG/WP 24-20715
…designed to be scalable and meet essential criteria for exterior coatings, including glass transition temperature and high solids content (> 30 %). The results indicate conversion rates exceeding 91.4 % and particle sizes ranging from 40 to 51 nm. Differential scanning calorimetry was used to determine glass…
M Carrère, V Landry
Determining the minimum water vapor permeability of exterior wood coatings by means of hygrothermal and decay models
2024 - IRG/WP 24-20717
…was to determine the minimum water vapor permeability of exterior wood coatings for log homes using hygrothermal and decay modeling. The approach is based on a worst-case scenario assumption, namely a moisture trap at a given wood moisture content in a coated wall log. The minimum limit of vapor permeability of the…
U Hundhausen, S Ullah, D Kraniotis
Accelerated surface mould testing for exterior wood treatment in Temperate, Tropical and Laboratory environments
2023 - IRG/WP 23-20699
…test can be considered to be an accelerated version of exterior field test in a temperate climate zone.
Differences between “good” and “poor” treatment technologies are evident in both mould chamber and tropical tests, however the differences are easier to access and identify in the tropical test, which…
A Nazeri, J Stenbaek, T R Laursen, A H H Wong, B M Hasnul
Adhesion and performance of exterior wood coatings on chemically and thermally modified wood – Results from 5.5 years outdoor exposure
2023 - IRG/WP 23-40964
Non-durable softwood and hardwood species were treated with the water-soluble cyclic N-methylol compounds 1,3-dimethylol-4,5-dihydroxyethyleneurea (DMDHEU) and methylated DMDHEU. One half of the modified specimens were coated with a waterborne acrylic coating…
L Emmerich, H Militz
Performance of wood exterior structures above ground in Spain. Performance and durability of a shelter of spruce in a shopping centre after 20 years
2022 - IRG/WP 22-20680
Across Europe is very common to find wood exterior structures mainly build in sawn and glue-laminated wood. Most of these exterior wood structures use softwood wood species such as: fir, spruce, pine or douglas. In Spain exterior wood structures, became more and more popular since nineties, when sawn…
D Lorenzo, A Lozano, M Alonso, J Fernández-Golfín, M Touza, J Benito
Influence of weathering on the mechanical properties and performance of exterior wood coatings
2022 - IRG/WP 22-40951
Three commercial coatings were exposed to artificial (EN 927-6) and natural weathering (EN 927-3) on wood samples. Cracking was visually assessed as well as Persoz hardness. Free films of the same coatings were also exposed to the same weathering tests before…
L Podgorski, J-D Lanvin
Protecting wood exterior infrastructures above ground in Spain. The importance of protection by design in the performance
2019 - IRG/WP 19-40874
Across Spain is very common to find wood exterior infrastructures build mainly in sawn and glue-laminated wood. Most of these exterior wood infrastructures use softwood wood species such as: fir, spruce, larch and pine. In Spain exterior wood infrastructures, became more and more popular since…
D Lorenzo, M Touza, J Fernandez-Golfín, A Lozano, J Benito, M T Troya, L Robertson
Performance of wood exterior structures above ground in Spain built with softwood species. The situation case of a shelter bridge
2018 - IRG/WP 18-40844
Across Europe is very common to find wood exterior structures build in sawn and glue-laminated wood. Most of these exterior wood structures use softwood wood species such as: fir, spruce, larch and pine. In Spain exterior wood structures, became more and more popular since nineties, when sawn and…
D Lorenzo, M Touza, J Fernández-Golfín, A Lozano, J Benito
Exterior paint for the future - Will there be any dry-film preservatives left?
2017 - IRG/WP 17-50332
…and by surface treatment. The use of various types of exterior paints as a surface treatment is a common way to prolong the durability of the wood. To further protect the painted surface against growth of fungi and algae, dry-film biocides remains an essential part of a high quality exterior paint. In Europe,…
H Jensen, M Sandve, S M Lystvet
Engineering for Rural and Civil Development. Uni Performance of wood exterior structures above ground contact in Spain built with softwood species. The situation of cases in northern Spain
2016 - IRG/WP 16-20597
Across Europe is very common to find exterior structures build in sawn and glue-laminated wood. Most of these exterior structures used softwood wood species such as fir, spruce, larch and pine. In Spain wood exterior structures, as for example bridges, became more and more popular since…
D Lorenzo, J Fernández-Golfín, M Touza
Exterior birch plywood: potentiality of the thermo-hydro treatment
2016 - IRG/WP 16-40743
…laboratory fungi tests after leaching with water (EN 84), exterior birch (Betula spp.) plywood, as birch solid wood, is subjected to degradation by rot fungi. This limits the use of such plywood outdoors or in building structures in high humidity conditions. The possibility to improve the birch plywood fungal…
B Andersons, I Andersone, A Meija-Feldmane, I Irbe, A Janberga, J Grinins
Indentation and pendulum hardness tests: two convenient assessment methods of the performance of exterior wood coatings
2015 - IRG/WP 15-40689
Developing formulations of exterior wood coatings with long service life is a big challenge. For many years in Europe the performances have been mainly evaluated through weathering tests (within the EN 927 series) followed by visual assessment (blistering, flaking, mould growth,…
L Malassenet, L Podgorski, M Truskaller, G Grüll
How to Increase the Lifespan of Exterior Wood Coatings
2015 - IRG/WP 15-40700
…a critical role in defining its durability on wood in exterior conditions. Or learning how a new preservative formulation or a new modification technique changes the surface properties of wood will help coating formulators to develop more suitable coatings for that specific modified wood. An example will be…
M Nejad
Exterior wood stains
1979 - IRG/WP 3136
The use of semi-transparent exterior wood stains has grown remarkably since their development during the 1960s. This can be partly attributed to their offering a break with tradition at a time when it was being recognised that changes in the quality of timber and how it was used…
E R Miller
Comparison of exterior performance of two coating systems based polyurethane applied Pinus sylvestris L. and Picea orientalis L. wood
2012 - IRG/WP 12-40588
Some surface changes in sapwood and heartwood of two species before applying clear-coating were characterized after accelerated weathering time. Wood specimens covered with two types polyurethane (PU) films were also observed in accelerated weathering exposure…
Ö Özgenç, Û Cafer Yıldız
Service life prediction for exterior timber cladding
2010 - IRG/WP 10-20460
…aims to develop a model for service life prediction of exterior timber cladding, to enable better end use selection of material suitable for delivering the required service life of cladding and to provide information for professionals wanting to understand and use timber cladding.
Service life prediction of…
E Suttie, F Englund
Impact of wood species on the performance of exterior wood coatings
2010 - IRG/WP 10-40519
To prolong the service life of a wooden construction the protective function of a coating is of utmost importance. The chemical composition as well as the wood-coating interface affects the performance of this protective layer and obviously wood species have a…
I De Windt, J Van den Bulcke, J Van Acker
Decay Hazard Classifications in China for Exterior Above-Ground Wood
2007 - IRG/WP 07-20357
A decay hazard map for exterior above-ground wood structures is presented based on Scheffer’s Climate Index, with the major purpose of promoting awareness for proper protection of wood structures in different locations in China. A very large area in the South, including southern…
J Wang, X Wu, M Jiang, P I Morris
L-joint based testing for service life prediction of exterior plywood in out of ground contact conditions
2006 - IRG/WP 06-20342
Good biological performance of several plywood types in exterior conditions is most probably related to altered wood moisture behaviour compared to solid wood. Therefore a test set up was developed, using EN 330 L-joint testing methodology, to facilitate differentiation of plywood for exterior applications.
The…
J De Smet, I De Windt, J Van Acker