The Móberg nursing home is a two-story circular building featuring an inner courtyard at its centre. It includes 60 nursing rooms divided into five residential units, with the nursing spaces situated around the exterior and service areas and corridors positioned within the circle. The building is mainly constructed from reinforced concrete, externally insulated and clad in timber cladding. The roof is made from insulated concrete, covered with roofing felt and topped with turf and gravel.

From the start, the design prioritised sustainability in both construction and operation. Careful attention was given to material selection, interior design, energy efficiency and effective environmental management. Due to its location in an earthquake-prone area, concrete was selected for the structure, but all external walls were made from wood. To lower concrete emissions, the concrete was mixed with ash from the Eyjafjallajökull volcano eruption, significantly reducing carbon emissions. All wood used in the building was sourced from sustainably managed and legally harvested forests.

The life-cycle assessment influenced the selection of materials for the building. The analysis was carried out for the following building elements over a 60-year lifetime: Ground slab and plinths, floor slabs, flooring, ceiling, roof, exterior walls, interior walls, doors, windows, columns, stairs and interior painting. The measures implemented to reduce the building’s carbon footprint resulted in a 4% reduction in carbon emissions.

Life cycle modules 
[kgCO₂e/m² reference area * year]

Type of emissions
%

When do emissions occur?
[kgCO₂e/m² reference area * year]

The system boundary includes key modules from product, use and end-of-life stages.
In the second figure, Operation includes B6, while materials include A1-A5, B4-B5, C1-C4.
In the third figure, Upfront includes A1-A5, scenarios include B4-B5, C1-C4, and D is shown separately.

GWP / reference area [kgCO₂e/m² reference area]

Material inventory: All materials
Life cycle modules: A1-3, B4-5, C1-4

Building element quantity / reference area [kg building element / m² reference area]

GWP of building element / building element quantity [kgCO₂e / kg building element]

■ Quantity/Area ■ GWP/Quantity

Material inventory: All materials
Life cycle modules: A1-3, B4-5, C1-4 

Building element quantity per building reference area is a measure for the material intensity, while element impacts per element quantity is a measure for the elements’ carbon intensity relative to their weight.

GWP of product / reference area [kgCO₂e/m² reference area]

■ Quantity/Area ■ GWP/Area

Material inventory: Top 10 products with the highest impacts
Life cycle modules: A1-3, B4-5, C1-4 

Construction product quantity per building reference area is a measure for the material intensity, while product impacts per building reference area is a measure for carbon intensity.