Gumption.
The plans given may be, and are expected to be, altered to suit requirements. If you use this roofing you must use substantial supports, in the way of rafters, and put them close together. In all cases, use your common-sense.
Don’t put much earth on a frail roof; it is only necessary to cover the boards with sufficient earth or sod to conceal the wood.
Make a long box, of four boards (Fig. 82), for