The work is laborious and tedious, and this is because of one rafter ?! Upon reflection by the brain, a solution was found. I made such a jack, with its help I leveled the broken rafter, put it on and screwed a new board to it. Now the roof is flat.
The entire repair took about an hour, excluding the manufacture of the "jack".
Generally similar homemade always useful on the farm, the main thing is done quickly and simply.
