The Swedish National archives
New construction of office space – CLT

Illustration: Tengbom
In 2024-2025, Granab had the honour of supplying subfloor systems to the offices of northern Europe’s largest archive. The National Archives in Härnösand. The building is a total of 34,000m², of which the archive is 22,600m².
In this building with a CLT frame, 25mm Sylodyn was required to meet the sound requirements. We chose to design S-7000N25.

About the project:
- Developer/Property owner: Specialfastigheter
- Contractor: Peab
- Architect: Tengbom
- System: S-7000N25
- Area: 4 800m²
Subfloor systems used in the project
Tags
- Residential Buildings
- Sports Facilities
- School & health care
- Sound & Event
- Commercial Buildings
- Other areas
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Environmental certification
Granab works actively to reduce environmental impact and has certifications that confirm our commitment to sustainability. All our subfloor systems have Environmentally Product Declarations (EPD).

