Net zero energy buildings (NZEBs) are essential for reducing the environmental consequences of the construction industry. However, its uptake within the industry has been limited, and the inherent barriers remain not fully explored especially in developing countries. This paper aims to examine the critical barriers that hinder the implementation of NZEBs in the construction sector of developing economies like Ghana.
Quantitative data were collected from 80 construction professionals in the Ghanaian construction industry (GCI) using online survey questionnaires. The data set underwent analysis following a four-level analytical protocol comprising reliability test analysis, mean score ranking, exploratory factor analysis and fuzzy synthetic evaluation.
Market readiness barriers were considered the most crucial barriers to the implementation of NZEBs in the GCI with an index of 4.023. This was followed by awareness and policy barriers with an index of 4.007. Finally, resistance to change, then cost and capacity barriers were ranked third and fourth, based on their indices of 3.763 and 3.615, respectively.
The results of this research shed light on a relatively unexplored area within the construction sector, particularly in a developing country like Ghana. The findings of this study will provide valuable information to support policy reviews and formulation and buttress the drive towards sustainability and achieving NZEBs.
