The distinctive new building in Stockholm’s Östermalm is a temporary market hall that was built as a temporary space while the old market hall is being renovated.
Metsä Wood’s Kerto® LVL built the temporary market hall, which now won Sweden’s most prestigious design award.The architectural agency Tengbom designed the concept of a temporary, modular wooden building that could built alongside the old hall. Tengbom wanted to promote sustainable construction, and Kerto LVL was the ideal choice for that.
“A standard solution for a temporary building would have been a marquee with an aluminium or steel frame. But this solution would have clashed with the prestigious brand of the market hall. And that is what we needed to cherish”, says principal architect Mark Humphreys.
The temporary market hall is actually a interesting of wood, glass and plastic. All these materials are lightweight, easy to work with and affordable, making them the best choices for temporary use.
The building’s roof structure consists of glulam columns and Kerto LVL beams in a grid structure, which is a strong shape, but makes the construction appear lighter and requires less material. The roof above the grid is made of plywood clad with sound-absorbing insulation made from wood fibre. 
The plastic used in the building is multichannel plastic with lots of air pockets, giving the material a very good insulation value. The plastic parts are completely prefabricated and they are airtight, watertight and naturally insulated. The glass in the windows is also insulated glass.
A fire protection treatment on the wooden parts guarantees the fire safety of the temporary market hall. The beams are painted with a transparent fire-retardant coating on site, and the plywood of the desks and floors has had a similar treatment. The floors and the columns were covered with plasterboard up to a height of three metres.
The refurbishment of the old market hall will be completed in 2018.
