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Fig. 01 / Project 06 of 06 / Partial scan

Local grid / 1 : 400

All projects

Vantaa Station RoofHelsinki, 2026

Area
12 000 m²
Year
2026
Structure
Timber
Status
In progress

Fig. 02 / Drawing set / Plan, section, elevation, axonometric

Fine lines drawn from the model / point cloud on the last tab

Drawn fromthe same model.

Every drawing below comes from the model the building was built and scanned against, with its grid, levels and the dimensions the site team worked to.

1234567ABC60 00040 000Build front / 58%Platform 1Platform 4N010 mSCALE 1:500

Fig. 03 / Scan vs design / As built against as drawn

Grey under 3 mm / blue over 8 mm

The building,against its drawing.

Drag the handle to compare the design with the latest scan. Each point is coloured by how far the built surface sits from the drawn one.

40 00014 000+0.00+1.10+14.00Four platforms under one shellGrid line 14010 mSCALE 1:300DESIGNAS BUILT

6 mm / Gridshell node on grid line 14

Fig. 04 / Construction / Survey to handover

Later milestones are upcoming

Construction timeline

  1. Survey / Done
  2. Foundations / Done
  3. Structure / In progress
  4. Envelope / Upcoming
  5. Handover / Upcoming

Feb 2024 to Apr 2027 / 38 months

Fig. 05 / Credits / Team

Everyone who built it

Credits

Client
Vantaa Rail Partnership
Structure
Kehä Timber Engineering
Services
Raide Systems
Contractor
Pohjola Rakennus
Scan imagery
Norrvik

Fig. 06 / Narrative / What the model found

About 200 words

About the project

Client
Vantaa Rail Partnership
Location
Helsinki / Finland
Sensors
248

The Vantaa Station Roof is a 12 000 m² timber gridshell over four platforms of a commuter station north of Helsinki, spanning the tracks without a single column on the platforms. Its 1 860 nodes join two families of curved timber lamellas into a shell that rises from the platform edges to almost eight metres above the rails.

The roof is still under construction, so what you see here is a partial scan: the built half captured weekly by drone and total station, the rest drawn as the design model. Each node is scanned as it is placed and compared with the fabrication model before the next row of lamellas goes up, and any deviation above six millimetres reaches the site team within the hour. Construction is at 58 percent. The 248 sensors installed during the build will stay for the life of the roof, and monitored energy data begins at handover.

Fig. 07 / Energy / 24 months monitored

kWh per m² per month / dashed line is the target

Energy use,month by month.

Last 12 months
55 kWh/m² design
Monthly target
4.6 kWh/m²
Months at or under target
From handover
Embodied carbon
196 kgCO2e/m²

Monitoring begins at handover. The dashed blue line is the design target.

Monitored energy use for Vantaa Station Roof, kWh per square metre per month
PeriodMeasured
Oct 24No data
Nov 24No data
Dec 24No data
Jan 25No data
Feb 25No data
Mar 25No data
Apr 25No data
May 25No data
Jun 25No data
Jul 25No data
Aug 25No data
Sep 25No data
Oct 25No data
Nov 25No data
Dec 25No data
Jan 26No data
Feb 26No data
Mar 26No data
Apr 26No data
May 26No data
Jun 26No data
Jul 26No data
Aug 26No data
Sep 26No data
No monitored months yet. Readings appear here from handover onwards.

Fig. 08 / Materials / Structural mass

Share by weight, as built

Share of structural mass by material, Vantaa Station Roof
MaterialShare
Timber64%
Steel16%
Concrete12%
Glass6%
Other2%

Fig. 09 / Lessons learned / Carried into the next model

03 entries

  1. L01Lesson learnedCompare every node before the next row goes up. Errors compound along a lamella.
  2. L02Lesson learnedWeekly drone capture kept the site model within one day of the real build.
  3. L03Lesson learnedDesign the monitoring network with the structure, not after handover.
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