A sod roof, or turf roof, is a traditional Scandinavian type of green roof covered with sod on top of several layers of birch bark on gently sloping wooden roof boards. Until the late 19th century, it was the most common roof on rural log houses in Norway and large parts of the rest of Scandinavia. Its distribution roughly corresponds to the distribution of the log building technique in the vernacular architecture of Finland and the Scandinavian peninsula. The load of approximately 250kg per m2 of a sod roof is an advantage because it helps to compress the logs and make the walls more draught-proof. In winter the total load may well increase to 400 or 500kg per m2 because of snow. Sod is also a reasonably efficient insulator in a cold climate. The birch bark underneath ensures that the roof will be waterproof.
The term ‘sod roof’ is somewhat misleading, as the active, water-tight element of the roof is birch bark. The main purpose of the sod is to hold the birch bark in place. The roof might just as well have been called a "birch bark roof", but its grassy outward appearance is the reason for its name in Scandinavian languages: Norwegian and Swedishtorvtak, Icelandictorfþak. (Full article...)
The shooting took place at the Kauhajoki School of Hospitality, owned by the Seinäjoki Municipal Federation of Education. The facilities and campus were shared between SeAMK and the Seinäjoki Vocational Education Centre – Sedu. Saari was a second-year student in a Hospitality Management undergraduate degree programme. The incident was the second school shooting in less than a year in Finland, the other being the Jokela school shooting in November 2007, in which nine people including the gunman died. Before that, only one other school shooting had taken place in the country's history, in Rauma in 1989, leaving two people dead. (Full article...)