Claims have been made that it is impossible to build a comfortable home without a basement. This is entirely false if proper attention was paid to grading, insulation and moisture control, and the installaton of a suitable heating system, a comfortable slab-on-ground floor can be constructed with little more difficulty than the placing of a concrete slab for any other purpose. Good drainage is a requirement with slab-on-ground construction. Natural drainage with well-compacted sand or gravel is preferable. Troubles from dampness and moisture with slab-on-ground floors are almost invariable due to lack of adequate control of surface run-off. In site preparation, the usual requirement for the complete removal of topsoil applies. The objective is to reach firm subsoil with good load-bearing capacity. On a level site it will usually be found that the slab thickness itself plus the necessary coarse gravel base course will give the desired floor level.