Looks like a good system for many areas. Before getting too enthusiastic, I'd check to see if it's code approved for a particular area.

The one thing I wonder about is what the snow load rating means--whether it's just the roof or includes side-thrusts on the walls. Perhaps the system includes accompanying wall construction. If it does, I'd imagine that a building with a loft would have a greater snow load rating since there be something near the top to tie the walls together. Engineers may not have a problem with the system but I can't help but wonder if the tie-bracing near the top of the gambrel roof actually removes significant side loading on the walls.

Maybe the deal is that you can't use this system with pole construction or maybe I just don't know what I talking about. I do know that the only structures you see around here without tie-beams across the top are small lean-to sheds and I put tie beams in one of ours because the walls were splaying.

I suspect that for fairly tall building in a place that gets some snow, you'd really want a loft so there'd be something to tie the walls together toward the top. Of course I can't get too enthusiastic myself since 30-lbs/ft. sq. isn't a starter for snow loading around here.

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