Effect of Faulty Design and Construction on Building Maintenance Case Study of Afdin and Mother Cat Construction Companies in Kaduna State)
CHAPTER ONE
Aim and Objectives
The aim of this research is to investigate the effects of faulty design and construction on Building maintenances.
The specific objectives of this research are:
- To identify the building defects caused by faulty design and construction on building maintenanc
- To determine the severity index of all defects identified and classify them by severity using SPSS 20.
- To determine the severity index for each defect within the group and classify them by severity using SPSS 20.
- To assess the effects of the building defects caused by faulty design and construction on maintenance.
- To test the hypothesis that architects and builders generally agree on the severity ranks of the faulty defects
CHAPTER TWO
LITERATURE REVIEW
Concept of Building Maintenance
Seeley (1996) stated that it is highly desirable but hardly feasible to produce buildings that are maintenance free, although much can be done at the design stage to reduce the amount of subsequent maintenance work. All elements building deteriorate at a greater or lesser rate dependent on the materials and methods of construction, environmental conditions and the use of the building. Any act of work carried out to prevent or rectify progressive deterioration of structures is said to be a maintenance operation.
Definition of Building Maintenance
Building maintenance is defined by Seeley (1996) as actions carried out to restore or improve certain parts of a building to an acceptable standard. The BS 3811, defined acceptable standard as ―one which sustain the utility and value of the facility. This definition is found to include some degree of improvement over the life of the building as acceptable comfort and amenity standard rise.
Types of Maintenance
BS 3811 subdivided maintenance into (a) planned and (b) unplanned maintenance as illustrated in figure 1 below:
CHAPTER THREE
MATERIALS AND METHOD
Research Methodology
This research work was carried out using two methods; the first methods involve a literature search and an interview. This stage identifies 67 defects caused by faulty design and construction, and also 8 effects of the defects on building maintenance. In the second method a questionnaire was developed using the defects identified as a parameter and a survey was conducted to assess the effect of these defects on maintenance.
Population Area of the Study
The population of the respondents consists of 20 Architects and 20 Builders respectively in Afdin and Mother Cat Construction Company of Kaduna state hence 35 questionnaires were returned while 5 questionnaires were not completed.
CHAPTER FOUR
RESULTS AND DISSCUSSION
Presentation of Results
CHAPTER FIVE
CONCLUSION
From the findings above the study concludes that the two professionals agreed that out of the total of 67 defects identified. The study shows that seven of these defects are considered ‗Most Severe‘, Fifty four ‗Moderately Severe ‘, six as ‗Severe‘, and zero as ‗Non Severe‘. The most severe defects which affect building maintenance are:
- Inadequate structural design such as foundation
- Hiring unqualified designers
- Not complying with specification
- Not relating exterior material selection to climatic condition
- Inadequate water proofing and drainage
- Unqualified work force
- Inability to read the drawings
The study concludes that there is a positive association between the perception of the two professionals that is, both the architect and builders have similar idea of the defects caused by faulty design and construction and its effects on maintenance. The results also show that increase in maintenance work is the most predominant effects on building maintenance among other factors of defect with an index value of 100.00 as perceived by both the rank of the Architects and that of the builders. The research however includes a hypothesis that Architects and Builders generally agree on the ranking of the severity defects which was tested and proven to be true. The study concluded that there should be a design review before finally approving the design for construction; maintenance expert should not be overlooked in the planning stage of the project and most importantly the employment of professionals for any building projects.
Recommendations
The following recommendations are made in view of the results of the study
- There should be a design review before finally approving the design for construction
- expert should not be overlooked in the planning stage of the project
- Selection of contractors should be based on competency and potentials for performance and quality not favourism
- Registered professional should be employed to handled building projects
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