I think that may be the issue. The offices are just studwork and timber joists with a suspended ceiling hung underneath. No plasterboard on the ceiling.
I think I will run tray on the top of the joists, and tie-wrap to that.
At least the cable will be supported for 3m lengths of tray. If that much of the building has burnt down that 3m of tray has collapsed, then I am not sure what more I could do anyway.
I think I will run tray on the top of the joists, and tie-wrap to that.
At least the cable will be supported for 3m lengths of tray. If that much of the building has burnt down that 3m of tray has collapsed, then I am not sure what more I could do anyway.