CHAPTER ONE
INTRODUCTION
1.1 BACKGROUND OF STUDY
The overall building cost of both private and public buildings are important as it is the summation of all the building element cost. Douglas and Peter (1980) believe that the total expenditure on the development of a project will be much higher than the net cost (of production) of the building fabric, necessitating financiers and stake holder in the industry need to know the total cost of fabric within a short time from the giving brief while contractors are concerned on how cost is allotted within the building.
A Quantity surveyor whose work is to cost the materials for the building will know which material that is relevant to that particular building, and remove those that are not relevant in order to reduce cost. He must bear in mind that the effective development of project depends on the estimated total cost of that project. Efficiency in execution and completion on time would be expedited by comparison of the cost of materials, time and labor with respect to various elements of building project especially the roof element.