cover supports
I have used PVC pipe in the past. All though we don't get the snow load in the South like they do up North it still does happen on occassion.
One inch pvc thin wall is flexible enough to take a bend. One at the front and one at the back with 3-4 peices down the mast. Looks like a covered wagon when finished. there is enough slope for the snow to slide off.. Take plastic tents pegs crammed in the ends for something to tie off to.. I used the foam for insulating pipe, cut short and folded over the lifeline uprights and either duct tape them in place or use plastic wire ties. The tarp doesn't touch the mast and is high enough to walk under. I bought a poly tarp that was 18 x 24. Next one will be bigger. It lasted about 3 years.