Publikasjoner
NIBIOs ansatte publiserer flere hundre vitenskapelige artikler og forskningsrapporter hvert år. Her finner du referanser og lenker til publikasjoner og andre forsknings- og formidlingsaktiviteter. Samlingen oppdateres løpende med både nytt og historisk materiale. For mer informasjon om NIBIOs publikasjoner, besøk NIBIOs bibliotek.
2015
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Mold growth on the surface of wooden façades is usuall y dealt with by using surface treatment such as paint with fungicides. However, new developments in architecture ar e m oving towards less use of coating, and more use of untreated wooden clad dings. Mould growth is well understood and described, and several m odels for predicting mould growth on building materials exist. It is commonly k nown that mould growth is directly controlled by the cli mate which the w ood is exposed to. Several authors identify humidity, temperature and time as the main drivers of mould growth. However, most of the cu rrent g rowth models developed are based on lab oratory measurements at stable climatic conditions. Consequently, these models are less suitable for prediction of mould growth on exterior surfaces exposed to rapidly changing weather conditions . T his paper analyses the effect of variations of meteorological data on the mould growth on wooden clad dings. An experimental setup of wood samples was exposed to outdoor conditions and h ourly weather conditions as well as t he mould growth at different intervals were measured. The measurements were supplied with 1- D Heat And Moisture (HAM) simulations to provide a more accurate estimate of the conditions on the surface of th e sa mples. The purpose of the analysis was to evaluate if an existing mould growth model might be applicable also for predicting outdoor mould growth. Several profiles of temperature and moisture were co ntinuously monitored on different locations of an eight - story building made from Cross Laminated Timber (CLT). The results from the an alysis of the samples of wood cladding were used to model the mould growth on different l ocations of the building. Also the drying effect of wind around the building was studied. The study shows that there is large variatio n of potential mould growth on the façade of the building.
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Lone RossSammendrag
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Yuka Kojima Aniko Varnai Takuya Ishida Naoki Sunagawa Kiyohiko Igarashi Masahiro Samejima Kiwamu Umezawa Jody Jellison Barry Goodell Gry Alfredsen Vincent Eijsink Makoto YoshidaSammendrag
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Barry Goodell Jody Jellison Yuan Zhu Liangpeng Zhuang Vincent Eijsink Makoto Yoshida Gry Alfredsen Valdeir Arantes Sai Venkatesh Pingali Hugh Michael O’NeilSammendrag
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