Thanks for your reply Catalyst. I hope this section picture helps, the section is cutting through the width of the house. If I had fire rated wall, say concrete block work, would I still need to dig the floorboards and go from the ground?

I thought the fire rating the roof was going to be the biggest problem.

• This reply was modified 10 years, 7 months ago by  TheDean.
• This reply was modified 10 years, 7 months ago by  TheDean.