i The need for shelter is one of the most important necessities for mankind after sustenance. Over the years, the term ‘shelter ’ has undergone series of modification either in shape, space, location or the materials used in constructing them but one thing remains the same; the need for a roof over one’s head is as vital to survival as time in itself. It is an established fact that the early man relied on materials found in his surroundings to provide shelter for him. The techniques employed ranged from earth sheltering to ‘green constructions ’ even before the term was coined. The coming of the industrial revolution in the 19th century changed the face of housing in the world forever by creating new possibilities, techniques and materials ...