Shelter is one of the basic needs of people in every society. Man strives to have decent homes and environment; this is applicable in both rural and urban communities by the use of good building materials. The earliest forms of houses were built by mud which can still be found in some areas in the country. Gradually, development and structural advancement began to take place in the world of building. As man moved from Stone Age to computer age; this was further enhanced by the growth and advent of new building materials and modern technology. As a result of changes in design, environmental decoration and taste of individuals, the old and crude methods of building productions were rendered obsolete. Hence, there is need for a holistic approach for integrating sustainability principles into material selection decision making at the design stage of building project (Akadiri, 2011).
Careful selection of environmentally sustainable building materials is the easiest way for architects and building designers to begin incorporating sustainable design principles in buildings. Traditionally, price has been the foremost consideration when comparing similar materials or materials designated for the same function. However, the “off-the-shelf” price of a building component represents only the manufacturing and transportation costs, not social or environmental costs (Jong-Jin Kim, 1998).
Contents
1.0 INTRODUCTION
1.1 Background to the study
1.2 STATEMENT OF RESEARCH PROBLEM
1.3 RESEARCH QUESTIONS
1.4 AIM OF THE STUDY
1.5 OBJECTIVES OF THE STUDY
1.6 HYPOTHESIS OF THE STUDY
1.7 Significance of the study
1.8 Scope and limitation of the study
1.9 Definition of terms
2.0 LITERATURE REVIEW
2.1 Introduction
2.2 Environmental Material Assessment
2.2.1 Three Phases of Building Materials
2.2.1.1 Pre-Building Phase
2.2.1.2 Building Phase
2.2.2 Threebasic steps of product selection
2.2.2.1 Research
2.2.2.2 Evaluation
2.2.2.3 Selectio
2.3 Timber as a Building Material
2.3.1 Structural Properties of Timber
2.3.1.1 Strength and Stiffness
2.3.1.2 Increasing Bendability
2.3.1.3 Moisture Content and Density
2.4 Criteria for Building Materials Selection
2.4.1 ResourceEfficiency
2.4.2 IndoorAir Quality (IAQ)
2.4.4 WaterConservation
2.4.5 Affordability
2.4.6 Non-polluting
2.4.7 Minimum wastes
2.5 Construction Materials and Components
2.6 Materials Selection
2.7 Factors to Be Considered During Material selection
2.8 Life Cycle Assessment (LCA) Principles
2.9 Energy
3.0 RESEARCH METHODOLOGY
3.1 INTRODUCTION
3.2 RESEARCH DESIGN
3.3 RESEARCH ASSUMPTION
3.4 POPULATION OF THE STUDY
3.5 SAMPLE SIZE
3.6 SAMPLING TECHNIQUE
3.7 DATA COLLECTION METHOD
3.8 DATA COLLECTION INSTRUMENT
3.9 STATISTICAL TOOLS
3.10 ADMINISTRATION OF QUESTIONNAIRE
REFERENCES
CHAPTER ONE
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