Lumber Mill Structure question

[ratled]

The area that I model, PNW, is heavily occupied by lumber mills. As I try to learn more about the industries I model I keep seeing one type of structure I can't find any info on. I've seen this A frame side supported structure in several Mill such as in this photo I took at the Roseburg mill in Weed CA




Or like in this picture of the Pacific Lumber Company near Eureka, CA


Why this type of construction?
These are all very long structures, what do they do inside? I am assuming a milling facility?
Anything else that you may know about these and care to share?

Thanks
Steve

[mountaingoatgreg]

I am modeling the large Brooks Scanlon mill in Bend Oregon. They had a large struture like this and it is was the crane shed. Many mills that had drying kilns would have large indoor loading and storage sheds. It would be a waste once you spend the time and money to dry the wood to stick it outside to get wet. I have seen some mills that have built large sorters or stackers in these large buildings to protect the equipment also.

[tomustang]

I am modeling the large Brooks Scanlon mill in Bend Oregon. They had a large struture like this and it is was the crane shed. Many mills that had drying kilns would have large indoor loading and storage sheds. It would be a waste once you spend the time and money to dry the wood to stick it outside to get wet. I have seen some mills that have built large sorters or stackers in these large buildings to protect the equipment also.

It's also meant as a pollution deterrent too, back when I worked in a mill in california I swear if wood dust floated out to a car on the street we were reported