BUILDING D(EMOUNTABLE)- architectenbureau cepezed
Photo credit: Lucas van der Wee | cepezed
Building D(emountable) is a modern, sustainable and fully demountable structure on the site of a historic, monumental building complex in the center of Dutch city Delft. This site is owned by cepezed, an agency with expertise in the development, the design and the realization of buildings.
cepezed acquired the complex with former laboratories from Delft University of Technology in 2012. It transformed the monumental buildings into a creative cluster with housing for various companies in the creative sector, including the office itself. However, the only non-monumental building on site was in poor condition. It has now made way for the new construction of Building D(emountable). Again, this is a full-blown own development of cepezed and it is intended for companies in the knowledge-intensive creative industry. It houses the app and website developer, 9to5 software and a game developer Triumph Studios.
The Netherlands has set itself the goal of rendering all construction activities fully circular by 2050, while cepezed has a long reputation for modular and demountable design and construction. Moreover, director Menno Rubbens of developer cepezed projects is part of the national program committee to achieve the national circularity goals. Partly for those reasons, Building D(emountable) also had to become an example project on cepezed’s own grounds. The way in which the office approaches circular construction and the way in which one can make buildings that can later donate to other projects or even be reused elsewhere in their entirety.
LIGHTWEIGHT, FLEXIBLE AND GAS-FREE
Building D(emountable) has exactly the same footprint as the existing building that was no longer good and was demolished. It measures 11 by 21.5 meters and has four floors of about 200 square meters of lettable floor area each. In addition to being demountable and remountable, the structure is also super lightweight: the use of materials is kept to an absolute minimum. The building is also completely flexible in its arrangement, has no gas connection and is equipped with heat recovery. The ground floor is made of poured concrete, but otherwise, all building components are modular and dry mounted. Supreme simplicity has been an important principle in the design.
Photo credit: lucas van der wee | cepezed
STEEL, WOOD, AND GLASS
Building part D(emountable) consists of a rationally optimized building kit with a steel, prefabricated and extremely slender main supporting structure. The structural floors and roof are made of lightweight wooden Laminated Veneer Lumber (LVL) elements that are also prefabricated. These have a compact height and the installations are integrated within them. The ribs of the LVL elements remain fully visible and are part of the building’s aesthetics. The screed is biobased and consists of gravel-like granules in a cardboard honeycomb structure with gypsum fiberboards on top. The entire screed is dry and easily removable again. The PVC finishing floor is made of partly recycled PVC. The building has no window frames: the double-layer insulating glass is mounted directly on the steel structure. For that reason, the steel construction is provided with welded screw profiles. The steel builder had to comply with the very limited tolerances of the façade builder, which was no small task. The facade is largely transparent, which makes for strong sightlines and relations between the inner and outer world. Vertical slat strips can be opened for natural ventilation. The down-to-earth, modern building strikingly and interestingly contrasts with the historic existing buildings. This also renders it illustrative for the way cepezed approaches the combination of new and historic construction.
The entire building functions as one large fire compartment. As a result, little material was required for fire-resistant measures; only the stairwell has a fire-resistant partition. All climate control works on air. On each floor, air conditioners that also take care of heating are integrated in the ceiling. In addition, the building is equipped with a heat exchanger. Roller blinds provide sun and light protection.
Project: building d(emountable)
Project development: cepezedprojects, Delft
Architect: architectenbureau cepezed, Delft
Interior design: cepezedinterieur, Delft
Structural engineering: IMd Raadgevende Ingenieurs, Rotterdam
To know more about the Architects
Photo credit: Lucas van der Wee | cepezed