Ratko Horvat

I had an accident while driving Peugeot 307 2.0HDI. I flew out of the road and hit an iron/concrete block which threw me in the air. Then the car rotated and crashed on the roof. 307 had 6 airbags, but they opened only on the passengers side. I would like to know, do airbags have to open (roof airbags) in case of roof crash? Im attaching one picture, if anyone can provide me usefull information, i can send a few more photos on e-mail. thanks