Roof sagging

[Diy]

Just wanting some advice ceiling bowing g in middle buy at least an inch and lost only has 9m plaster board and 37mil joists is this somethink to be concerned about 

[Temp]

37 x ??

 

Some buildings only have small ceiling rafters rather than loft floor joists. In other words they are only intended to hold up plasterboard not for people to walk about on or store things up there.

 

If you want to store things up there or convert the loft to storage space the loft floor may need reinforcing.

 

 

 

 

[Diy]

Thank we wanted to store stuff up there if you see all my other problems with property then you may understand state of property  we have distemper on all walls and plaster falling off and massive cracks so not sure it safe