All the old-time log cabins were roofed with shakes, splits, clapboards,
or hand-rived shingles as already described and illustrated by Figs. 126,
128, 129, and 130; but to-day they are usually shingled with the
machine-sawed shingle of commerce. You may, however, cover the roof with
planks as shown by Fig. 233 or with bark weighted down with poles as
shown by Fig. 234. In covering it with board or plank nail the latter on
as you would on a floor, then lay another course of boards over the cracks
which show between the boards on the first course.