This particular factory is in a very bad shape and I beleive it will collapse very soon. When large holes appears in the roofs, water and snow gets in and then the aging process accellerates by a factor 20x or so.

One can get a feeling how it looks like by another works that is just like a pile of matches: http://www.pbase.com/jakobe/collapsed_tile_factory

Very sad indeed - it's a spectacular building and the history of this industry is interesting reading