HOAS Tuuliniitty
Commissioned by the Helsinki Student Housing Foundation HOAS, the 13-storey apartment block HOAS Tuuliniitty is located in Espoo's Tapiola neighbourhood in Finland. It is the tallest building built entirely out of CLT box elements to date. All of the box elements were manufactured by Elementti Sampo from Kuhmo.
Tuuliniitty is the first wooden apartment block built by HOAS. It allows students to live ecologically in a modern wooden building. Massive wood structures keep the carbon of the wood stored throughout the building’s lifespan. The popular CLT, or Cross-Laminated Timber, also boasts other features that make it an ideal material for housing construction.
Basic information
- Type of building:
Student housing - Fire protection class:
B-s1,d0 - Fire protected:
CLT interior surfaces - Location:
Espoo, Finland
13 STOREYS REQUIRED THE DEVELOPMENT OF AN ENTIRELY NEW STRUCTURE SYSTEM
The centrally-located tall building respects the spirit of the Tapiola neighbourhood, known for its garden atmosphere. HOAS Tuuliniitty has 13 stories and out of its 165 student apartments, 154 are studios and 11 are family apartments. The main architect of the building – set to be completed in the summer of 2021 – is Jukka Turtiainen from Arkkitehtipalvelu while JVR-Rakenne served as the project's main contractor. Engineering firm A-Insinöörit was responsible for structural design.
Designing a CLT element building that was significantly taller than usual offered an interesting challenge. When sizing a building this tall, special attention must be paid to frame vibrations and technical aspects related to sound insulation and fire protection. The stability of the frame was ensured by developing a structure system appropriate for this target, complete with junction details. This new system can be used in future box element projects.
