## 5 Conclusions  
This document contextualizes the need to provide concrete data to the scientific, business, and civil communities regarding the implementation of industrialized construction, especially concerning the challenges and benefits related to cost, time, energy performance, and environmental impacts of projects. Below are the conclusions for each of the indicators addressed in this study, where most of the background pertains to prefabricated construction. Construction costs. Only 30% of the analyzed studies provided quantitative data on cost reduction in industrialized construction projects. Precise information on the monetary amounts compared between industrialized and traditional construction systems was lacking in these studies. Therefore, future research should offer a precise view based on measurable evidence. Additionally, organizations intending to implement and/or develop industrialized construction systems must consider initial investment challenges and address logistical issues to avoid negative effects on total project costs. Construction time. Only 32% of the analyzed studies provided quantitative data on time reduction in industrialized construction projects. The studies did not provide data associated with personnel performance, duration of work, prototype construction time, or supporting information for the data. Thus, the adoption of these methods by companies should be based on measurements of transport times, supply chain, and availability of machinery and materials, as neglecting these aspects has negative effects on project schedules. Energy performance. All analyzed studies emphasized the importance of using low thermal conductivity insulation materials to enhance energy performance in projects. This property is crucial for reducing the thermal transmittance of building elements, but new industrialized construction systems should optimize their performance by considering density, specific heat, and layer arrangement. Thermal performance varies depending on the climatic zone where these solutions will be implemented; thus, adopting a construction system alone is insufficient; it should be analyzed in the new location where it will be built. Furthermore, new proposals are expected to assess the variation of thermal transmittance in relation to moisture absorption and adsorption, as water negatively affects the energy performance of the solution. Environmental impacts. A total of 38% of the studies analyzed provided specific data on carbon emissions in the development of construction solutions or their implementation in a project. In this context, new solutions should consider the use of low carbon footprint raw materials, focusing on the entire production phase, including logistics, as transportation significantly contributes to environmental impacts. Industrialized construction solutions could thus reduce the negative environmental impact compared to traditional construction thanks to process optimization, efficient material management, and advanced technology implementation. Scope and limitations of this study. This study evaluated four relevant indicators for the construction industry, showing generally positive results when implementing industrialized construction systems in projects. However, most of the documents lack detailed information on how the percentages for time or cost reductions in construction were determined. Regarding the indicators for energy performance and environmental impacts, most refer to industrialized construction systems but are not necessarily applied to housing or buildings. All of this made it difficult to unify and compare the collected background information. This document analyzed a total of 90 scientific articles from different countries, where it is understood that each climatic and environmental context is different. For this reason, and considering the points mentioned above, the background information was presented, grouped, and compared as it was published to offer the scientific community the official data on industrialized construction.