Perceptions on the Use of Indigenous Building Materials

Introduction

The Nigerian construction industry plays a pivotal role in the nation’s socio-economic development, but it is challenged by high construction costs, material shortages, and reliance on imported products. A major debate in the sector revolves around the potential of Indigenous Building Materials (IBMs) as viable alternatives to conventional modern materials like cement, steel, and glass. The study at hand investigates the Perceptions on the Use of Indigenous Building Materials among Nigerian construction professionals. It provides insights into the benefits, challenges, and reasons for discrimination against these materials while suggesting policy directions to enhance their adoption.

The study surveyed 165 professionals, receiving 106 valid responses. The findings reveal that while indigenous materials are abundant and potentially cost-saving, they are underutilized due to lack of standards, low social acceptance, design limitations, and insufficient supply in usable forms. Nonetheless, the Perceptions on the Use of Indigenous Building Materials also highlight significant opportunities for affordable housing, employment generation, and sustainable development.

Indigenous Building Materials This paper considers the historical development and theoretical framework of local building materials (referred to in the study as Indigenous Building Materials IBM). Building materials constitute the single largest input in construction and so have a great influence on the total cost of any construction product. The high cost of construction has led to a call for means of incorporating these IBMs and so the need to consider the problems/limitations faced by users of the materials and the potential benefits to be derived. A questionnaire survey of construction industry professionals was undertaken. One hundred and sixty-five questionnaires were distributed, 110 were returned out of which 106 (representing 96% of the returned questionnaires) were used in the analysis. The potential benefits to be derived from using IBMs include the provision of affordable housing and reduced cost of construction. Limitations in design forms, inadequate supply of some of the materials in usable forms and structural problems due to lack of knowledge about, and standards for IBMs were the most limiting problems of the use of the materials. The potential benefits associated with the use of indigenous building materials for building construction are yet to be fully explored; therefore it is recommended that outputs of previous research efforts be incorporated in efforts aimed at studying indigenous building materials in order to understand failings and innate characteristics IBMs with a view to offering solutions to some of the problems outlined in this report.

Historical and Theoretical Context

The development of indigenous building materials in Nigeria has roots in colonial research through the West African Building Research Institute (WABRI). After its dissolution in 1962, Nigeria lacked a dedicated research institution until the establishment of the Nigerian Building and Road Research Institute (NBRRI) in 1978. NBRRI was tasked with conducting applied research on construction materials, processes, and designs to improve efficiency and develop national standards.

Unfortunately, the lack of standards for local materials such as lime, soil blocks, timber, and fired clay has hampered their acceptance. Imported standards from British (BS) or American (ASTM) codes dominate, automatically privileging modern materials in contracts and regulations. This institutional bias shapes the Perceptions on the Use of Indigenous Building Materials, making them seem inferior or temporary even when they may be suitable for many applications.

Sources and Types of Indigenous Building Materials

Nigeria is blessed with abundant natural resources that can serve as building materials. These include laterite, clay, granite, limestone, marble, timber, bamboo, and natural fibers. Materials are broadly classified into:

  1. Naturally occurring deposits: clay, limestone, granite, laterite.

  2. Agricultural products and residues: bamboo, natural fibers, raffia palm.

  3. By-products of industrial processes: waste materials that can be repurposed into construction components.

For the commercial viability of these materials, technologies must be tested and popularized locally. However, government institutions often fail to translate research into practice. For example, machines developed for block-making by NBRRI have not been widely adopted. This gap between research and practice affects the Perceptions on the Use of Indigenous Building Materials, as they remain underutilized despite their availability.

Problems and Limitations

The study outlines several recurring challenges with indigenous materials:

  1. Quality and Lack of Standards: Without codified standards, indigenous materials are perceived as unreliable. This lack of confidence translates into reluctance from architects and builders.

  2. Low Demand: Consumer preference leans toward conventional materials, associating them with modernity and durability. Government-established clay factories, for example, operate far below capacity because of poor patronage.

  3. Inappropriate Application: Misuse of materials due to lack of technical knowledge often leads to failures, which reinforces negative perceptions.

  4. Structural Concerns: Many professionals cite structural weaknesses, especially under modern design demands.

  5. Design Limitations: Indigenous materials are seen as unsuitable for sophisticated or high-rise forms, narrowing their scope of use.

  6. Legal Restrictions: In planning codes, local materials are often considered temporary, disqualifying them from permanent construction.

These challenges dominate the Perceptions on the Use of Indigenous Building Materials, leading to widespread skepticism.

Research Methodology

The research employed a questionnaire survey targeting architects, builders, engineers, and quantity surveyors in Abuja, Kaduna, and Zaria. Of 165 questionnaires distributed, 106 valid responses were analyzed. About 41% of respondents held a bachelor’s degree, and 29% had master’s degrees, with most having at least five years’ professional experience.

Key areas of inquiry included awareness of IBMs, perceived benefits, reasons for discrimination, and common problems encountered in practice. This methodology was designed to provide a holistic view of professional Perceptions on the Use of Indigenous Building Materials in Nigeria’s construction sector.

Findings and Discussions

Responsibility for Specifying Materials

Survey results showed that 70% of respondents identified architects as the primary specifiers of building materials, followed by builders (13%), engineers (11%), and quantity surveyors (7%). Since architects often default to conventional standards, their role strongly influences the Perceptions on the Use of Indigenous Building Materials.

Benefits of Indigenous Materials

Respondents identified several potential benefits:

Thus, positive Perceptions on the Use of Indigenous Building Materials recognize their socio-economic and environmental advantages.

Reasons for Discrimination

Despite benefits, discrimination persists due to:

These negative Perceptions on the Use of Indigenous Building Materials overshadow their potential.

Common Problems

The survey recorded the most frequent challenges as:

Though these problems exist, the study suggests they should be viewed as challenges to address rather than reasons for abandonment.

Broader Implications

The research highlights the paradox: indigenous materials are abundant, affordable, and eco-friendly, yet underutilized due to perception and institutional barriers. Positive Perceptions on the Use of Indigenous Building Materials are tied to sustainability, affordability, and local empowerment, while negative perceptions stem from standards, design limitations, and bias toward imported products.

The findings call for:

Conclusion

The study concludes that indigenous building materials hold great promise for Nigeria’s housing sector. They are environmentally sustainable, locally available, and potentially cost-saving. However, their adoption is limited by persistent negative Perceptions on the Use of Indigenous Building Materials, largely driven by lack of standards, social prejudice, and structural concerns.

For meaningful change, efforts should focus on developing standards, retraining professionals, educating the public, and mainstreaming IBMs into policy and practice. NGOs, cooperatives, and government agencies can spearhead awareness campaigns by using indigenous materials in schools, markets, and housing projects. In this way, the Perceptions on the Use of Indigenous Building Materials can shift from skepticism to acceptance, paving the way for sustainable construction and affordable housing in Nigeria

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