From the start of the project, climate and sustainability goals were at the top of the agenda. At a later stage, it was decided to certify the building with Miljöbyggnad Silver and NollCO2. Collaboration between the LCA consultant, the tenant, the contractor and the building owner made it possible to realise this project which is the first logistics building in Sweden certified according to Noll­CO2 and the first building within the NollCO2 certification to balance its carbon impact to net zero on site, using the photo­voltaic system installed on the building’s roof. In the early project stages, it was decided to opt out of EPS and polyurethane insulation as much as possible. Investigation of the best construction for the concrete slab on the ground in the warehouse showed that the Teqbase plan, executed without joints and without reinforcement, would be a very climate-smart and time-efficient solution and accelerate construction time. It was decided to make the wall elements for warehouses and offices as sheet metal sandwich elements with a stone wool core. Different suppliers were compared based on the climate impact per square metre of façade. Due to difficulties sourcing steel with a sufficiently low climate impact, the designers have worked towards minimising the amount of steel purchased.  Through smart division of fire zones and other measures, the fire consultant was able to establish that no sprinkler system was required for the building, which represents a large saving in embodied carbon emissions. The window and door supplier undertook to produce project-specific EPDs for all supplied windows and doors.

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

Type of emissions
%

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

The results shown here are from the NollCO2 certification. The system boundary includes the product and use stages. All materials are reported, including building energy systems/installations such as electrical cables, HVAC, water pipes, sewage pipes, heating systems, lifts and solar PV panels. Impacts from energy use are reduced by district heating and solar power generation.
In the second figure, Operation includes B6, while materials include A1-A5, B4-B5.
In the third figure, Upfront includes A1-A5, scenarios include B4-B5, and D is shown separately, had it been included in this assessment.

GWP / reference area [kgCO₂e/m² reference area]

The results shown here are from the NollCO2 certification.

Material inventory: All materials
Life cycle modules: A1-A5, B4-B5

All the technical components and piping for electricity water etc. were included in the estimation. Combined, they have an impact of 10 kgCO2e/m2 reference area (not included in the figure). The suspended ceiling is allocated to the roof.

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

The results shown here are from the NollCO2 certification.

Material inventory: All materials
Life cycle modules: A1-A5, B4-B5

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.

Product quantity / reference area [kg product / m² reference area]

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

■ Quantity/Area ■ GWP/Area

The results shown here are from the NollCO2 certification.

Material inventory: Top 10 products with the highest impacts
Life cycle modules: A1-A5, B1-B5, C1-C4

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.