1"? or 1'?
big difference...lol
i imagine its a typo.
greg is right,its kinda difficult in the air,but to build the ladder on the ground attatch it to the gable end truss will make it easier.
there are several methods,notching the truss for 2x4's on the flat and cantilevering the blocking out the foot-doubling the length of the blocking makes it really strong.the sheeting supports the the end load.
when putting up rafters,carry in through door upside down,poke one end up on wall,then the other.leave em hang upside down and flip em up as you need them.
dont make a stack,mind you its a small house but my neighbor decided to make a big stack of rafters on his walls and the whole works collapsed under the load.
trashed about 30 rafters 40 feet long.i told him it was a bad idea.