Brandteknisk riskvärdering av Frejaskolan i Gnesta

Sammanfattning: This report is an evaluation of the fire safety at Frejaskolan in Gnesta, Sweden. The report was preceded by a field trip to the school and the fire safety at the school was studied. A number of fire scenarios have been treated, and three were chosen for further analysis. To be able to make any judgements about the fire safety, estimation has been done by comparing the time needed for safe evacuation with the time to critical conditions in the building. This was made by hand calculations and by using software called FDS. The main conclusion is that none of the three cases can ensure safe evacuation of the occupants in the building, hence a list of measures to be undertaken to minimize the fire risk are given. To improve evacuation safety in the event of fire, evacuation through windows is a possible solution. Any fire equipment such as automatic door closers and evacuation signs should be serviced regularly.