Author:Billingham, PADate:1977When man first began to build shelters for himself about 800 years ago he concentrated on providing effective walls and roof. The floor go-t scant attention because it was already provided by the earth. The first soft floor coverings ware ...Read more
Author:Donaldson, GW; Billingham, PADate:1973The words ‘built on a firm foundation' have become part of the language and most people would unhesitatingly agree that a house has to have a foundation' without perhaps understanding exactly why. If one were to place an open wooden box upside ...Read more