Possible to remove wall?

[oddjob2009]

Hi,

I have an extension on my ex council house with a concrete flat roof underneath the roof is many little rooms that I would like to remove to make a kitchen diner. I have already removed a wall adjoining two small rooms and would like to know if I can remove one more.
The area of the concrete span I would like to have suspended is 9'x6' and the concrete thickness is about 6" given the concrete has been there more than 40 years would it be possible to remove an extra wall without having to support it with a steel beam.

[stoneyboy]

oddjob2009,
You must get a surveyor in, 6" of concrete falling on you is going to hurt!
end