Mofolasayo, A (2025) Multi-variable evaluation of factors that contribute to the environmental impact of onsite and offsite building construction: An illustration using roof panel fastening schedule. International Journal of Construction Management, 25(16), pp. 1938-1951. ISSN 1562-3599
Abstract
This study used the nail fastening schedule for some portion of the roof section of a building layout to describe how multiple factors contribute to the environmental impact of both onsite and offsite construction. The effect of improved efficiency of offsite construction over onsite construction as regards the speed of work was evaluated for 25% and for 50% improved efficiency. The impact of variations in the transportation distance for material delivery to three prospective offsite construction locations and the impact of panel/module transport distance was evaluated for 50, 75, and 100% increases in distance. As the distance to transport the panel/module to the site increase, the GHG emissions for the offsite construction increase. The increased transport distance resulted in the loss of efficiency gains from two offsite construction locations that have initial gains. The result from this study indicates that although offsite construction has a prospect to show a reduced environmental impact when compared with onsite construction, project-specific variables will dictate whether offsite construction will have a higher environmental impact than onsite construction and vice-versa. The method that is described can be scaled up for the evaluation of the environmental impact of the entire building construction process for various projects.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | building design; environmental impacts; offsite construction; onsite construction; rs means |
| Index terms: | efficiency, onsite, building design, module, roof, building construction, variation, environmental impact |
| Subjects: | architectural elements, building construction, environmental impact, architectural design, contractual condition, performance management, design practice |
| Topics: | Quality Management, Sustainability, Contract Administration, Design Practice, Construction Technology |
| Descriptive scope: | 2 PC |
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