Looks, to me*, like removing the roof tiles and stacking them to one side would be fairly straightforward, you could then asses the roof structure and make good/replace, then refit the tiles.
You'd need to be aware of the requirements for ventilation, but I imagine that some insulation under the tiles would both improve the conditions in the shed, and lend some security- as it is at the moment a thief could get in by removing sufficient tiles to climb through.
Looks, to me*, like removing the roof tiles and stacking them to one side would be fairly straightforward, you could then asses the roof structure and make good/replace, then refit the tiles.
You'd need to be aware of the requirements for ventilation, but I imagine that some insulation under the tiles would both improve the conditions in the shed, and lend some security- as it is at the moment a thief could get in by removing sufficient tiles to climb through.
*I know, right.