Sustainability Report

Monio’s massive wooden construction ensures the building acts as a carbon sink. The building’s exterior walls and partition walls use a total of 5,500 logs. In addition, the floor slabs, columns, diagonal beams, and roof structure are made out of wood.

When assessing the emissions associated with the production of materials and the construction of the building over a 50-year period, the building's carbon footprint is calculated to be 19.2 kg CO2e/m2/a. However, due to the amount of wood stored within its structures, the building achieves a carbon handprint of -12.7 kg CO2e/m2/a. This indicates that over a 100-year review period, the building becomes carbon negative, meaning that its carbon handprint surpasses its carbon footprint as the building's lifespan extends.

The building is the first 3-storey timber log school in Finland and presents a pioneering idea for large-scale Finnish wood construction. The project is an experiment in the use of industrial logs to build a mass wooden structure. Massive timber log walls form the outer and inner surface of the exterior wall, as well as the load-bearing structure and insulation.

This building is constructed using 275 x 263 millimetre non-settling industrial logs, a first for a building of this scale. To prevent difficulties in a log structure this high, two inner lamellae of the five lamellae in total have been turned vertically, eliminating the settling that would otherwise occur. The logs are combined with Kerto Ripa (laminated veneer lumber) and glulam (glued laminated timber), and with concrete, brick, and steel, resulting in a newly realised hybrid building.

Energy class A

Monio’s design emphasises sustainable solutions and the building is rated energy class A. The building is heated via carbon neutral district heating, and approximately 500 square metres of rooftop solar panels provide additional energy.