Advantages thanks to wood. Lumber 4 Building by Oslotre
24/10/2023.
[Kristiansand] Norway
metalocus, ANTONIO CORREDERA, JORGE MARTINEZ
metalocus, ANTONIO CORREDERA, JORGE MARTINEZ
Consulting agency Oslotre was commissioned to build a new office building in the coastal city of Kristiansand in southern Norway. The city is characterized by the very old old town, Posebyen, which suffered a terrible fire in 1892. Even so, numerous buildings remained intact, being traditional constructions built using half-timbered structures.
The construction of the project was built in a record time of twelve months, this is due to the studio's specialization in wooden structures, which has allowed the project to demonstrate that it is possible to build competitive wooden buildings compared to the same structures. standard concrete and steel techniques.
The construction of the project was built in a record time of twelve months, this is due to the studio's specialization in wooden structures, which has allowed the project to demonstrate that it is possible to build competitive wooden buildings compared to the same structures. standard concrete and steel techniques.
Lumber 4 Building by Oslotre. Photograph by Kyrre Sundal.
Lumber 4 Building by Oslotre. Photograph by Kyrre Sundal.
Lumber 4 Building by Oslotre. Photograph by Kyrre Sundal.
Lumber 4 Building by Oslotre. Photograph by Kyrre Sundal.
Lumber 4 Building by Oslotre. Photograph by Kyrre Sundal.
Lumber 4 Building by Oslotre. Photograph by Kyrre Sundal.
Lumber 4 Building by Oslotre. Photograph by Kyrre Sundal.
Lumber 4 Building by Oslotre. Photograph by Kyrre Sundal.
Lumber 4 Building by Oslotre. Photograph by Kyrre Sundal.
Lumber 4 Building by Oslotre. Photograph by Kyrre Sundal.
Lumber 4 Building by Oslotre. Photograph by Kyrre Sundal.
Lumber 4 Building by Oslotre. Photograph by Kyrre Sundal.
Lumber 4 Building by Oslotre. Photograph by Kyrre Sundal.
Lumber 4 Building by Oslotre. Photograph by Kyrre Sundal.
Lumber 4 Building by Oslotre. Photograph by Kyrre Sundal.
Floor plan. Lumber 4 Building by Oslotre.
Section plan. Lumber 4 Building by Oslotre.
Lumber 4 designed by Oslotre is a six-story high commercial and office building. The ground floor houses commercial use, with the upper five floors dedicated to office spaces. The building is built using a massive wooden structure, which together with the use of CLT and concrete in the floors, creates a thin and efficient floor system. The wooden elements in the interior occupy a prominent place, giving the space a feeling of warmth in winter and freshness in summer.
Wood is the main element of the building, which adds greater acoustic insulation and greater resistance against fire to the building. The façade is composed of curved prefabricated pine wood elements that generate a play of light and shadow with the straight eaves. Pine wood is designed to undergo changes over time, generating more accentuated curves, therefore greater play of shadows.
Lumber 4 Building by Oslotre. Photograph by Kyrre Sundal.
Wood is the main element of the building, which adds greater acoustic insulation and greater resistance against fire to the building. The façade is composed of curved prefabricated pine wood elements that generate a play of light and shadow with the straight eaves. Pine wood is designed to undergo changes over time, generating more accentuated curves, therefore greater play of shadows.
Lumber 4 Building by Oslotre. Photograph by Kyrre Sundal.
Project description by Oslotre
"Lumber 4" is a commercial and office building spanning six floors. A recessed ground floor constitutes the commercial level, with the five floors above dedicated to office spaces. The structure is composed of a mass timber construction with columns and beams made of glued laminated timber.
The floors are constructed using a composite structure of CLT and concrete, creating a slim and efficient floor system that spans long distances while also addressing fire and acoustic requirements. Diagonals on the ground floor facilitate better vehicular access around the building. The existing communication core from adjacent building phases contributes to lateral stability and access to the office floors. Between the third and fourth floors, an atrium with an internal staircase made of mass timber has been introduced. Wood elements are prominently displayed in the interior, providing warmth in winter and cooling in summer.
Lumber 4 Building by Oslotre. Photograph by Kyrre Sundal.
The facade is composed of prefabricated curved wooden elements in pine, treated with green paint. The eaves above the curved elements are straight, creating a curved shadow on the panel. Over time, the paint under the shadow will weather, leading to a changing facade with lighter and darker curved sections. The insulation used throughout is wood fiber. The cladding consists of fire-treated pine. All load-bearing structures are exposed, and exterior walls are clad with white-pigmented spruce panels. Wood wool acoustic panels are used in concealed service areas and meeting rooms. Visible conduits are painted in a light beige color. The large floor-to-ceiling windows open up to the view and provide ample natural light.
The construction of the building was completed in record time, with detailed planning and construction taking only 12 months. "Lumber 4" has demonstrated that it's possible to construct competitive timber buildings when compared to the same technical standard concrete and steel structures. The building was 90% leased upon completion. Oslotre served as the project's architect, interior architect, and timber structural engineer.
More information
Architects
Project team
Architects in Charge.- Christoffer Imislund, Jørgen Tycho.
Architects.- Kristine Karklina, Katrin Wilde Sampaio, Amanda Skadeberg.
Interior.- Amanda Skadeberg.
Architects.- Kristine Karklina, Katrin Wilde Sampaio, Amanda Skadeberg.
Interior.- Amanda Skadeberg.
Area
3,890 sqm.
Dates
Year.- 2023.
Location
Kristiansand, Norway.
Manufacturers
Splitkon.
Photography
Ona Flindall, Jørgen Tycho. Oslotre
Oslotre is a consulting agency founded by the architects Ona Flindall and Jørgen Tycho in the fields of architecture, wood design and construction technology, specializing in wood construction.
They focus on healthy and durable wood architecture with the use of bioclimatic principles and natural ventilation.
The extensive use of wood provides a healthy indoor environment, leads to buildings with good acoustics and fire resistance, and the possibility of natural ventilation taking advantage of the thermal and hygroscopic properties of wooden structures.
With several years of experience in the fields of architecture, timber engineering, CLT production and assembly, they are able to offer complete end-to-end delivery of architect-designed buildings as well as customized architectural solutions, Modular and prefabricated in wood.
They focus on healthy and durable wood architecture with the use of bioclimatic principles and natural ventilation.
The extensive use of wood provides a healthy indoor environment, leads to buildings with good acoustics and fire resistance, and the possibility of natural ventilation taking advantage of the thermal and hygroscopic properties of wooden structures.
With several years of experience in the fields of architecture, timber engineering, CLT production and assembly, they are able to offer complete end-to-end delivery of architect-designed buildings as well as customized architectural solutions, Modular and prefabricated in wood.
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