Wooden Additional Floor in Finland
2. Literature Survey
3. Wooden Additional Floor Construction
- As an efficient and environmentally friendly construction method, it provides beneficial development of the building stock and increases the income of property owners.
- Renovation and upgrading of old building stock were more beneficial in terms of the carbon footprint than new construction and demolition. For example, Huuhka et al.  reported that renovation and upgrading works with additional floors have a 20% lower negative impact on the environment in terms of carbon footprint compared to new construction and demolition.
- Additional floor construction provides short-term income to housing companies by selling the building rights or areas of additional floors. Revenues from additional floors could be used to cover the renovation cost of the old building.
- Additional floors considerably increase the total floor area without significantly affecting the total energy consumption of the upgraded building.
- As energy-efficient passive structures, additional floors can substantially improve the energy efficiency of existing buildings, especially if the upper floors have not been renovated for a long time.
- Additional floors improve the appearance of the building and can have a substantial impact on the architectural impression.
- Considering that the renovation process is a slow and uncomfortable process for the residents, the construction of an additional floor using prefabricated elements minimizes this discomfort of the building occupants and speeds up the process.
- To minimize disturbance to residents, it makes sense to build wooden additional floors from box-like module elements. However, module elements are difficult to design and construct because the upper ceiling tile cannot usually be loaded, so the loading must be aligned with the load-bearing walls below the floor, which may be few in number.
- To manage the renovation costs and use the insufficient autumn and winter capacities of the housing factories, wooden additional floor projects, especially during the winter months, face difficulties in the construction site conditions, especially in humidity control.
- Additional floor construction, which not only ensures energy efficiency but also brings the existing building to modern standards, is a complicated process consisting of several stages mentioned below that are technically more difficult.
- Increased use of infrastructure, green space, and common appliances can be considered as the drawbacks of additional floor construction.
4. Conclusions and Prospects
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
Entry Link on the Encyclopedia Platform
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Soikkeli, A.; Ilgın, H.E.; Karjalainen, M. Wooden Additional Floor in Finland. Encyclopedia 2022, 2, 578-592. https://doi.org/10.3390/encyclopedia2010038
Soikkeli A, Ilgın HE, Karjalainen M. Wooden Additional Floor in Finland. Encyclopedia. 2022; 2(1):578-592. https://doi.org/10.3390/encyclopedia2010038Chicago/Turabian Style
Soikkeli, Anu, Hüseyin Emre Ilgın, and Markku Karjalainen. 2022. "Wooden Additional Floor in Finland" Encyclopedia 2, no. 1: 578-592. https://doi.org/10.3390/encyclopedia2010038