Hórreo failing

Hórreos and paneras are protected by law, it´s illegal to destroy them. But no-one does anything about the ones that are "neglected to death". Usually it´s the roof that fails first - and you can see that happening here. Then if nothing´s done, over time the structure collapses in or itself. 
Extra 1 shows the pitprops to the near-right-hand "leg", 2 shows the front entrance where the collapse is beginning, and 3 just shows a bit of the size and textures of the thing.