Certainly Housing Construction in Finland has a few characteristics that most definitely don’t set it apart from other countries. It is conservative, standardised and utilises prefabrication and concrete to a large degree. Some things are harder to change than others but one thing that just might be changing for the better is in the replacement with much of the concrete with timber.
I already wrote something about the new found ability of Finnish builders to build hi-rise timber framed buildings. But now we could make major updates to our existing building stock and develop new forms of prefabricated and highly insulated timber panel system also.
The student residence building of Pohjalankaleva in Oulu was the first project in Finland to be renovated with a Timber Based Element System or TES for short ( part of the International TES project). Already a second building renovation taking place following the pilot project is in Peltosaari, Riihimäki and hopefully should pave the way for this method of renovation to be taken up more widely which should in turn bring further time and cost benefits.
The best thing about this system is that it promises not just to bring your old building up to current building standards but far beyond. Passive House standards are being aimed for which in Finland that means the following;
In the project PEP – Promotion of European Passive houses, VTT suggested a definition for Finnish passive houses, where the requirements are:
Heating energy demand max. 20 – 30 kWh/m2
(depending on the location)
Air tightness of the building envelope n50 max. 0.6 1/h
Total primary energy consumption 130 – 140 kWh/m2 (via)
Maybe we can start to lead the building industry in the use of timber based construction methods to not only improve new builds but update our existing buildings without sacrificing cutting edge building standards.