Blar i NTNU Open på forfatter "Rüther, Petra"
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Air leakage paths in buildings: Typical locations and implications for the air change rate
Gullbrekken, Lars; Bunkholt, Nora Schjøth; Geving, Stig; Rüther, Petra (Peer reviewed; Journal article, 2020)The harsh Norwegian climate requires buildings designed to high standards. An airtight building envelope is crucial to achieve an energy efficient building and to avoid moisture problems. Results from the SINTEF Building ... -
Color Changes of Wood and Wood-Based Materials Due to Natural and Artificial Weathering
Rüther, Petra; Jelle, Bjørn Petter (Journal article; Peer reviewed, 2013)Color changes of unpainted wood surfaces caused by weathering are an aesthetic problem and the understanding of the underlying processes is a complex task. This study investigates color changes of wooden boards both outdoors ... -
Durability Evaluation of Adhesive Tapes for Building Applications
Fufa, Selamawit Mamo; Labonnote, Nathalie; Frank, Susanne Gabriele Martha; Rüther, Petra; Jelle, Bjørn Petter (Journal article; Peer reviewed, 2018)In the building sector, various adhesive materials are experiencing an increased usage for sealing of overlaps and joints between most commonly used building materials, around penetrations, pipes and windows for increasing ... -
Durability of traditional clamped joints in the vapour barrier layer: Experimental and numerical analysis
Gullbrekken, Lars; Gradeci, Klodian; Norvik, Øyvind Siksjø; Rüther, Petra; Geving, Stig (Journal article; Peer reviewed, 2019)Clamped joints of wood frame buildings are a traditional way in Norway to attain airtight joints for the air and vapour barrier. Numerous defects registered in the SINTEF Building Defects Archive related to air leakage ... -
Effect of forced convection on the hygrothermal performance of a wood frame wall with wood fibre insulation
Bunkholt, Nora Schjøth; Rüther, Petra; Gullbrekken, Lars; Geving, Stig (Peer reviewed; Journal article, 2021)Wood-based thermal insulation materials have interesting hygroscopic characteristics because of their high moisture capacity. The present paper investigates the moisture conditions in wood-frame walls with wood fibre thermal ... -
In-use conditions of air-tightening materials applied in the air gap of ventilated building envelope constructions: A parametric study for different European climates
Brozovsky, Johannes Georg; Nocente, Alessandro; Rüther, Petra (Peer reviewed; Journal article, 2023)Materials used in the building envelope have to withstand a wide range of varying and harsh conditions over their life cycle. Particular relevance falls upon the materials used for tightening buildings, such as wind barriers ... -
Investigations of Accelerated Climate Aged Wood Substrates by Fourier Transform Infrared Radiation Material Characterization
Jelle, Bjørn Petter; Rüther, Petra; Hovde, Per Jostein (Journal article; Peer reviewed, 2012)Fourier transform infrared (FTIR) material characterization by applying the attenuated total reflectance (ATR) experimental technique represents a powerful measurement tool. The ATR technique may be applied on both solid ... -
Modelling and validation of hygrothermal conditions in the air gap behind wood cladding and BIPV in the building envelope
Brozovsky, Johannes Georg; Nocente, Alessandro; Rüther, Petra (Peer reviewed; Journal article, 2022)Materials used in the building envelope are exposed to a wide range of varying and harsh conditions over extended periods. Knowledge about these precise conditions allows for improving the design of testing schemes and ... -
Stokastisk analyse av råtepotensial i huskledning
Stokkenes Johansen, Øivind (Master thesis, 2007)Det er benyttet regresjonsanalyse for å analysere innsamlet data. For å unngå eller begrense effektene av multikolinearitet er ridgeregresjon tatt i bruk. Fordi målingene er korrelerte med hverandre er generaliserte ... -
Studies of Wooden Cladding Materials Degradation by Spectroscopy
Gupta, Barun Shankar; Jelle, Bjørn Petter; Hovde, Per Jostein; Rüther, Petra (Journal article; Peer reviewed, 2011)Claddings or facades are the outer part of building envelopes. In this study, wooden claddings are exposed to natural and accelerated weathering. The natural climate exposure was performed at a field test site located in ... -
Wood Weathering from a Service Life Perspective
Rüther, Petra (Doktoravhandlinger ved NTNU, 1503-8181; 2011:187, Doctoral thesis, 2011)Untreated wooden cladding has a long tradition and has in recent years become a both economically and environmentally beneficial solution in miscellaneous modern building applications. Untreated wood in cladding and similar ...