IRG Documents Database and Compendium



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Your search resulted in 46 documents. Displaying 25 entries per page.


Moisture performance of wooden shingles tested on the Golobar cable yarding
2023 - IRG/WP 23-20704
…material in Europe and other parts of the world. In the 17th century, wooden roofing was generally used on more important buildings, but today it is mainly used on huts and houses in the Alpine regions. As wooden roofing is expensive, we investigated the possibility of extending the service life of the roofing…
M Humar, B Lesar, D Kržišnik


Analysis of wooden shingles after seven years of exposure
2022 - IRG/WP 22-20690
…traditional roofing material in the Alpine regions. In the 17th century, wooden roofing was typically used on more important buildings. Still, today it is predominately used on huts and houses in the hilly regions of northern and north-western Slovenia. Because wooden roofing is expensive, we investigated the…
M Humar, B Lesar, D Kržišnik, E Keržič, B Jemec


Effect of long-term immersion in fresh and salt water on mould growth on Scots pine (Pinus Sylvestris L.) wood
2020 - IRG/WP 20-10962
…in the Røros municipality have existed since the 17th century, but wood used in recent repairs have decayed faster than expected. Before 1970 timber was mainly transported by log driving or rafting, and the logs were immersed in water for longer or shorter periods. The effect from immersion on growth of…
M Sand Austigard, J Mattsson


An Historical Roof Timber System in the Old Town of Berlin-Spandau
2019 - IRG/WP 19-10949
…buildings. Here we discuss a restoration project involving 17th century roof timbering. This project may be used as a model for the restoration of other wooden historical monuments.
M Luke, W Unger, D Nellessen


Neglected Contribution of Herman Schacht on Soft Rot in 1863 Revisit to “wet rot” and “crystalloid holes in spiral directions
2025 - IRG/WP 25-11054
…type of wood decay, was established in the mid-20th Century by John Savory (1954). This decay involves cylindrical cavities formed by Ascomycetes and Fungi Imperfecti within secondary cell walls of wood, aligned with cellulose microfibrils. However, similar features were described already 160 years ago by the…
Y-S Kim, K Yamamoto


Xerophilic mould fungi on new and historic wood
2025 - IRG/WP 25-11056
An examination of mould fungi in 35 medieval and ten 18th Century buildings shows mould growth to varying degrees on different surfaces. The analyses also show a rapid development of mould fungi on certain wooden surfaces in recent years. A significant difference in the growth between new and old wood is the…
J Mattsson, M S Austigard


Microbial symbionts in the shipworm gut: a new finding resolving a century old mystery explaining how shipworms digest lignin
2025 - IRG/WP 25-11061
Shipworms, historically known for their destruction of wooden ships and coastal structures, also play a key role in carbon and nutrient cycling in aquatic ecosystems. Despite extensive research, the exact mechanisms underlying their ability to digest wood, and…
B Goodell, J Chambers, D V Ward, C Murphy, E Black, L B K Mancilio, G Perez-Gonzalez, J R Shipway


A Case Study of Vogvarjeva hiša, a Local Ethnographic Museum
2025 - IRG/WP 25-41027
…Duplje, Slovenia, is an example of traditional 18th Century wooden architecture and an important element of the region’s cultural heritage. The building was constructed from local timber on stone foundations and reflects the traditional rural building techniques of the Gorenjska region. Since it was declared…
D Kržišnik, L Kopač, D Jones, M Humar


Analysis of A Wooden Structure Damaged in a Fire – The Wooden Granary at Zaprice, Kamnik
2025 - IRG/WP 25-41049
…features several granaries dating to the early 19th century, forming part of the national Cultural Heritage Register (EID: 1-09881). One of the two-chamber wooden granaries, constructed in 1828, suffered significant fire damage in December 2024. The objective of this study was to evaluate the extent of the…
M Humar, B Lesar, L Kopač, A Žagar


Time-lapse evaluation of Aureobasidium pullulans growth on selected lignin derivatives and chitosan
2024 - IRG/WP 24-11032
…often referred to as the “building material of the 21st century”, has gained recognition as an attractive alternative to several traditional building solutions. To enlarge the application of wood, several properties including biotic and abiotic degradation resistance need to be improved. Consequently, new…
Gubensek, F Poohphajai, A Tosic, K Butina Ogorelek, W Pajerski, A Cernosa, V Hribljan, A Sandak


Characterisation of fungal decay in cable car trestles in Svalbard
2023 - IRG/WP 23-11031
…coal mining industry were established in the early 20th century. All man-made structures and sites dating before 1946 in Svalbard are protected by law and considered as cultural heritage. This included the massive cable car trestles that are constructed from untreated Norway spruce and mounted directly into the…
G Alfredsen, L Ross, M Altgen, I A Yakovlev, A-C Flyen, M S Austigard, J Mattsson, N B Pedersen


Validating a short-term laboratory method to assess the resistance of timber to biodegradation by marine wood-borers
2021 - IRG/WP 21-10975
…popular treatments for timber products during the last century but have since been restricted or banned in several countries, including the UK. Novel methods in wood modification and protection are therefore required to replace such techniques. Use of lesser-utilised timber species and wood modification offers a…
L S Martin, J R Shipway, G P Malyon, S M Cragg


DuraSoft Project: a multidisciplinary approach for softwood protection
2021 - IRG/WP 21-50367
…massive and fast. To overcome this problem, in the last century the use of particularly polluting wood protection products as well as of unsuitable materials have been perpetrated, causing environmental damage or unsustainable use of resources. The DuraSoft Project aims to test some new techniques and products,…
I Guarneri, V Moschino, N Nesto, T Marceta, M Sigovini, E Borella di Torre, L Dametto, S Pasqual, M Humar, B Lesar, T Cibic, V Natali, E di Poi, F Cerino, D Formasaro, M Kralj, F Relitti, C Balestra, M Celussi, A Franzo, A Volpi Ghirardini, M Picone, G G Distefano, M Russo, D Marchetto, R Rakar, I Trobec, D Marinic, G Rep, N Thaler, T Galvan, R Lazzarini, F Gombac, D Tagliapietra


Pigment production by the spalting fungus Scytalidium ganodermophthorum and its industry potential
2020 - IRG/WP 20-10957
…in the creation of fine art and woodworking since the 16th century in Europe. However, most fungal species known to spalt wood only produce a single color of pigment, making S. ganodermophthorum unique. Other pigments isolated from fungi in the family Helotiales have shown unique physical characteristics including…
R C Van Court, P Vega Gutierrez, S C Robinson


Observed and projected changes in the climate based decay hazard of timber in the United Kingdom
2020 - IRG/WP 20-20665
…indices for the United Kingdom until the end of the 21st century. The projections show a significant increase in the climate decay index even in the lowest RCP scenario, with all regions of the UK moving to index values indicating a very high hazard based on climatic conditions
S F Curling, G A Ormondroyd


Enhancing the durability of low durability Eucalyptus plantation species: a review of strategies
2020 - IRG/WP 20-40910
…of these species were established near the end of the 20th Century, primarily for paper production. However, shifting priorities have encouraged a re-examination of possible uses for these materials. Shining gum (Eucalyptus nitens) is an important plantation species in Tasmania. Among the possible uses for this…
K C Wood, J J Morrell, W Leggate


Visual assessment of longitudinal wheel timbers and assessing the feasibility of extending wheel timber service life in the UK railway network
2019 - IRG/WP 19-20651
…and during the start of the Railway Age in the nineteenth century it was in considerable demand for use in the railway network, particularly bridge building. Timber is still in service and widely used throughout the UK railway network. The resilience and favourable strength to weight ratio and its relative ease of…
J R Williams


Natural durability and performance of Eucalyptus globulus single family house in Spain after 17 years exposure
2019 - IRG/WP 19-40873
From last century, in the country side in Spain is common to find wooden houses. The reason is mainly due the improvements in glues, materials, design by computer and processing in factories. All these technological advances have facilitated the development…
D Lorenzo, M Touza, J Fernandez-Golfín, A Lozano, J Benito


Towards better integration of wood protection in the forestry wood industry chain - a case study on hybrid poplar
2019 - IRG/WP 19-50359
…forestry-wood chain has evolved in the second half of last century from mainly production based strategies to policies based on ecosystem services in a sustainability framework. Today forests are intended to provide services for the bio-economy, human health, biodiversity and climate control. An increased need for…
J Van Acker


Building with wood in the Arctic
2018 - IRG/WP 18-50335
…with research on the Franklin exploration of the mid19th century searching for the North West Passage, which coupled with the impact of Global warming on the loss of sea ice has rendered the North West Passage now navigable during the summer months. Building with wood in the Arctic has proved extremely effective…
J N R Ruddick


Preserved Wood in the Story of Sustainable Forestry
2018 - IRG/WP 18-50344
…the service life of these products beyond a half century or more. When comparing materials steel, concrete and plastics with wood, it is the only renewable resource, which is often overlooked by focusing on recycled content. Considering that most wood products are recycled or reclaimed for energy after…
D Brookes


Study on Biological Distribution to Conserve the Tripitaka Koreana woodblocks in Haeinsa Temple
2015 - IRG/WP 15-10844
…Wood-carved Buddhist scriptures which were made in 13th century. And Janggyeong Panjeon that is depository for the Tripitaka Koreana was built in 15th century. In recent days, biological damage becomes a serious problem to wooden cultural heritage including historical wooden buildings with global warming. In this…
Si Hyun Kim, Hyun Ju Lee, Yong Jae Chung


Buffered Amine Oxide Treatment Systems for Imparting Water Based Azoles/Insecticides in Douglas Fir and Eucalyptus
2015 - IRG/WP 15-40707
…insect resistance into wood has been utilized for over a century. Today, many of these preservatives are delivered into the wood using the same decades-old methods and chemicals, including the utilization of emission-prohibitive organic solvent based delivery systems. The development of solvent-free, Water Based…
R W Clawson Jr


Buffered Amine Oxide Treatment Systems for Ammonical Copper Wood Preservatives
2014 - IRG/WP 14-40685
…insect resistance into wood has been utilized for over a century. Today, many of these preservatives are delivered into the wood using the same decades-old methods and chemicals. The development of buffered amine oxides treatment systems (known commercially as TRU-CORE® Technology) for use in wood preservation…
R W Clawson Jr


Preliminary testing of spiroborate esters as wood preservatives
2013 - IRG/WP 13-30614
…of boric acid are known since 30’s of the last century, but high solubility and leachability of inorganic borates limit their use for only applications not directly exposed to liquid water. A number of attempts were made to fixate borate salts into the wood structure but this research topic is still up to…
D Panov, N Terziev