Assessment of Skills Gap and Training Needs in the Adoption of Sustainable Building Technologies among Artisans in Imo State, Nigeria

Abstract

The construction sector in Nigeria faces significant barriers to adopting sustainable building technologies (SBTs), particularly among artisans who execute on-site works. This study assesses skills gaps and training needs for SBTs such as passive solar design, rainwater harvesting, and green roofing among masons, carpenters, and plumbers in Imo State. A mixed-methods approach was employed, involving a survey of 384 artisans selected via stratified random sampling from five local government areas, supplemented by focus group discussions (FGDs) with 45 participants. Data were analyzed using descriptive statistics, chi-square tests, and thematic analysis. Findings reveal moderate awareness (52%) of SBTs but profound skills deficits: only 18% of masons proficient in passive solar techniques, 22% of carpenters in green material handling, and 15% of plumbers in rainwater systems. Key barriers include inadequate training (78%), limited access to tools (65%), and low incentives   (61%).   Training   needs   prioritize   hands-on   workshops   (92% endorsement) on SBT installation and maintenance. Statistical analysis (χ² = 45.67, p < 0.001) confirms significant associations between experience level and skills gaps. The study recommends artisan certification programs integrated with government policies like Nigeria's National Building Code (2021 amendment). These insights could enhance SBT adoption, reducing embodied carbon in buildings by up to 30% as per UNEP (2023) benchmarks, fostering sustainable urbanization in Imo State..