Lone Ross
Divisjonsdirektør
Forfattere
Kristina Bringedal Gedde Zoe Angele Adele Cordhomme Romain Guillaume Billy Roja Modaresi Lone Ross Daniel Beat MuellerSammendrag
The use of wood in building construction can substitute more emission-intensive materials while storing biogenic carbon, as buildings are long-lasting stocks. Yet, increasing use of wood for buildings competes with other uses of wood and can have negative consequences for forest ecosystems. A cascadic use of wood has the potential to increase wood use and carbon storage with less primary wood. However, there is limited knowledge of how cascadic use principles can be implemented in specific regional contexts. While several building stock studies have tracked wood inflows, stocks, and outflows, they tend to lack a building component/element resolution, which is critical to inform strategies for component reuse. Furthermore, little is known about how cascadic use may influence wood inflows to the national building stocks. Hence, the objective of this study is to quantify end-of-life outflows of wood from building elements and to assess the share of these outflows that can be cascaded into new construction, thereby affecting future inflows to the building stock. This stock-model is built on dynamic material flow analysis principles and developed based on the ODYM-REC Python framework (Pauliuk & Heeren, 2020). It facilitates scenario-development with different reuse and recycling rates and lifetimes that change with time and cohort. The stock-matrix is layered by cohorts and building types, where the building types are differentiated by small or large wooden or non-wooden buildings, including load-bearing wooden structure types. Material intensity values are gathered from literature for the total mass per floor area and at the element level for the defined building types. Including building elements and separating building types and their load-bearing structure types has enabled us to develop a more granular understanding of wood use and its cascading potential. Preliminary results indicate that structural wooden elements in the walls and floors, such as columns and beams, have the highest potential for cascading because of their high structural capacity and quantity. However, barriers to large-scale reuse need to be addressed, including the challenges of dismantling buildings, requirements for quality certification, and financial and logistical constraints.
Sammendrag
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Forfattere
Gerhard Grüll Gry Alfredsen Geir Wæhler Gustavsen Boris Forsthuber Jonas Niklewski Philip Bester van Niekerk Lone Ross Christian BrischkeSammendrag
Å velge trekledning handler om mer enn bare tekniske egenskaper. Utseende, vedlikeholds behov, kostnader og personlige preferanser spiller også en viktig rolle. En ny studie fra Norge, Sverige og Tyskland viser at bare én av fem foretrekker ubehandlet trekledning, og at både personlighet og lokale tradisjoner påvirker hva vi oppfatter som attraktive fasader. Med utgangspunkt i disse funnene har forskerne, som har utført studien, utviklet en enkel veiledning som kan hjelpe huseiere og byggherrer med å velge kledningsløsninger som passer deres forventninger til utseende, levetid og vedlikehold.
Divisjon for skog og utmark
SenseWood
SenseWood aims to make wood a reliable, climate-smart building material by expanding digitalisation beyond construction into the operation and maintenance phases of buildings.
Divisjon for skog og utmark
SenseWood
Målet i SenseWood er å gjøre tre til et pålitelig, klimavennlig byggemateriale ved å utvide digitaliseringen fra design og byggefasen til drift og vedlikehold gjennom hele bygningens levetid.
Divisjon for skog og utmark
WoodStock
EU-prosjektet WoodStock utvikler klimavennlige løsninger for å øke bruken av underutnyttet trevirke i den europeiske byggesektoren.