Tengbom, Tengbom Architects, fire-resistant architecture, floor-to-ceiling windows, OrganoWood, trail center, patina, green roof, sedum roof,

Tengbom Architects won the bid to design the 600-square-meter trail center in 2014, after placing first in an architecture competition launched by Sweden’s Kungälv municipality following the destruction of the old building. The oval trail center comprises a cafe, lockers, changing rooms, and shower facilities. To meet fire safety standards, the architects created the square shingles from OrganoWood pine, a type of modified hardwood that’s bonded with silicon compounds to make them naturally resistant to flame and rot. The pine facade will develop a silvery gray patina over time.

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Tengbom, Tengbom Architects, fire-resistant architecture, floor-to-ceiling windows, OrganoWood, trail center, patina, green roof, sedum roof,

In contrast to the exterior cladding, the interior features warm birch plywood and pale gray floors. Natural light pours through floor-to-ceiling windows that also frame views of the outdoors. Tengbom Architects also worked with landscape architects to preserve existing trees wherever possible and revamp the outdoor area, which now includes a new playground, outdoor gym, and lake pier.

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Images via Tengbom Architects, © Ulf Celander