COMPARATIVE ASSESSMENT OF FACTORS AFFECTING COST OF INDUSTRIALIZED BUILDING AND CONVENTIONAL BUILDING SYSTEM IN NIGERIA
ABSTRACT
The main aim of this research work is to compare the factors affecting cost of industrialized building and conventional building system in Nigeria. The research method used in collecting data was through the use of questionnaire administered to construction professionals in Nigerian construction industry. Seventy questionnaires were administered and fifty five were returned with response rate of 73%. The instrument used in analyzing data collected was relative importance index (RI!) to rank the factors affecting the two systems in Nigeria. From the analysis it was discovered that the major factors affecting cost of industrialized building and conventional building system in Nigeria were unstable government policy, inadequate manufacturing facilities, high cost of overhead, availability of expertise, scope of work, suitable construction environment, bureaucracy, materials waste, high cost of construction, availability of land with relative importance index of 0.82, 0.8, 0.79, 0.78, 0.77, 0.76 respectively. It was recommended that government should help in reducing the cost of building components, materials, plants and equipment and they should also set an example of patronizing the industrialized building system just as conventional building system and they should not be too strict in policy making. In conclusion the major factors affecting cost of industrialized building and conventional building system in Nigeria were unstable government policy, inadequate manufacturing facilities, high cost of overhead, availability of expertise, scope of work, suitable construction environment, high cost of construction, availability of land respectively.
CHAPTER ONE
INTRODUCTION
1.1 Â Â Â Â Background of the study
Construction system is undergoing a translational change from a construction industry employing conventional construction to a more modernized and advanced system. Like a pre-fabricated component system, steel framing system, block work and mould system and timber framing system in all such system is known as industrialized building system (IBS).In this new technique of construction in order to increase the productivity of construction and improve quality of work. The system can be used good construction, equipment, materials and better project planning. This study is present and defined actual difference between conventional and industrialized building system, which can provide the necessary information on the building cost comparison between the two systems. This study also addresses the building cost comparison, more advantages and effective in between the two systems. Such provides the details building cost indicates which of the two are cheaper.
